10COM 65SEG 1/8, 1/9, 1/10 Duty BITMAP DRIVER with SCAN GENERAL D

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10COM 65SEG 1/8, 1/9, 1/10 Duty BITMAP DRIVER with SCAN GENERAL D

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NJU6539
10COM 65SEG 1/8, 1/9, 1/10 Duty BITMAP DRIVER with SCAN
GENERAL DESCRIPTION
NJU6539 10-common 65-segment bitmap driver display graphics characters. NJU6539 consists bits display data (DDRAM), serial interface, common segment drivers, scan circuit, several general output ports. display data serial interface stored DDRAM first, then displayed panel common segment drivers. NJU6539 display dots graphic -line 11-character dots character)+ icons. scan circuit transmit max.25 data MPU. also provide many four general-purpose output ports signals control other devices. Furthermore, selectable driving voltage steps makes easy adjust display contrast.
PACKAGE OUTLINE
NJU6539FG1
FEATURES
NJU6539FC2
Directly corresponding relationship between DDRAM data pixe DDRAM bits Drivers 65-seg, 10-com Serial interface SIO, SCL, Programmable Duty Ratio 1/8, 1/9, 1/10 Bias Ratio Scan matrix need anti-reverse current diodes) General Output Ports Max. ports (The duty cycle variation divided into128 steps) Progra Function Brightness Correction Various Instructions Display ON/OFF, Page Address, Column Address, Select, Display Inverse, Pixel Reset, Register, Duty Selection, Power Save Mode, Frequency/Po4 (S1), Output Port, Program/Port Mode, Slope/Stepping Time, Program Display Data Write. Built-in driving bias voltage generation circuit Software Contrast Control steps) Operating Voltage Logic Operating Voltage 5.5V Driving Voltage 10.0V Package QFP100-G1 QFP100-C2 C-MOS Technology Substrate:
Ver.2006-04-26
NJU6539
Contents
GENERAL DESCRIPTION FEATURES CONFIGRATION.3 BLOCK DIAGRAM BLOCK DIAGRAM TERMINAL DESCRIPTION FUNCTIONAL DESCRIPTION.6 (1-1) Serial Interface (1-2) Instruction Data Buffer.6 (1-3) Instruction Decoder.6 (1-4) Display Data (DDRAM).6 (1-5) Segment Driver.6 (1-6) Common Driver.6 (1-7) Electrical Variable Resistance (E.V.R.).6 (1-8) Scan Controller.6 (1-9) Data Buffer.6 (1-10) Oscillator.6 (1-11) Reset Circuit (1-12) General Output Port
Description Each Block
Instruction. Example Using Sweep Function Scan Circuit.
(4-1) Relation Between Scan Data Matrix.22 (4-2) Timing Scan (4-3) Normal Mode (4-4) Power Save mode (4-5) Multi-key Scan Operation.26 (4-6) Scan Data Readout.27
Reset.
(5-1) Initialization.29 (5-2) Status Output (5-3) Initialization Hardware (5-4) Power Reset Operation.30
Driving Voltage neration Circuit Data Input Timing Data Output Timing.
(8-1) Port Flag (Po1~Po4).32 (8-2) Flag.32 (8-3) Power Save Flag (PSF).32 ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS. CHARACTERISTICS APPLICATION CIRCUIT
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CONFIGRATION
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S1/Po4 VLCD1 VLCD2 RESb S1/Po4 VLCD1 VLCD2 RESb
NJU6539FG1
NJU6539FC2
SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 SEG25 SEG26 SEG27 SEG28 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 SEG25
COM10 COM9 COM8 COM7 COM6 COM5 COM4 COM3 COM2 COM1 SEG65 SEG64 SEG63 SEG62 SEG61 SEG60 SEG59 SEG58 SEG57 SEG56 SEG55 SEG54 SEG53 SEG52 SEG51 SEG50 SEG49
COM10 COM9 COM8 COM7 COM6 COM5 COM4 COM3 COM2 COM1 SEG65 SEG64 SEG63 SEG62 SEG61 SEG60 SEG59 SEG58 SEG57 SEG56 SEG55 SEG54 SEG53 SEG52 SEG51
SEG50 SEG49 SEG48 SEG47 SEG46 SEG45 SEG44 SEG43 SEG42 SEG41 SEG40 SEG39 SEG38 SEG37 SEG36 SEG35 SEG34 SEG33 SEG32 SEG31 SEG30 SEG29 SEG28 SEG27 SEG26
SEG48 SEG47 SEG46 SEG45 SEG44 SEG43 SEG42 SEG41 SEG40 SEG39 SEG38 SEG37 SEG36 SEG35 SEG34 SEG33 SEG32 SEG31 SEG30 SEG29
NJU6539
NJU6539
BLOCK DIAGRAM
COM1 COM2 COM3 COM4 COM5 COM6 COM7 COM8 COM9 COM10
VLCD1 E.V.R. Common Driver VLCD2 Decoder Page Address Instruction Decoder Instruction Data Buffer Input Buffer Segment Driver
Display Data
Column Address Decoder
Oscillator
Timing Generator
Data Buffer
RESb Power Reset
RESET
Serial
Scan Control
General Output Port/ Driving Control
Po4/S1
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SEG63 SEG64 SEG65
SEG1 SEG2 SEG3
Reset
NJU6539
TERMINAL DESCRIPTION
Symbol
Description
Segment output terminals. Common output terminals. Icon common output terminals. General output ports Output signal. duty cycle variation from 100% divided into steps General output port scan output terminal Must selected either general output port scan output port instruction Selected general output port scan output terminals need anti-reverse current diode scan circuit)
Po4/S1
VLCD1 VLCD2 RESb
scan output terminals. need anti-reverse current diode scan) scan input terminals. (built-in pull-down resistor) Power supply terminal logic circuit (2.7V 5.5V) Power supply terminal driving voltage. driving bias voltage terminals. Connect capacitor between each terminal Ground terminal. Oscillator terminal. Oscillation circuit configured with external resistor Reset terminal. (The built-in internal pull-up resistor) using Power-on Reset function, keep this open. Chip enable terminal Serial clock input terminal Serial Data input output terminal
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NJU6539
FUNCTIONAL DESCRIPTION
Description Each Block (1-1) Serial Interface Interface serial data input/output. (1-2) Instruction Data Buffer instruction data stored temporarily this buffer. (1-3) Instruction Decoder instruction data decoded. (1-4) Display Data (DDRAM) DDRAM used store display data. Table.1 Display data (DDRAM)
Page address Data Display Pattern Common Drivers COM1 COM2 COM3
D0="0"
D0="0" D0="1"
PAGE
COM4 COM5 COM6 COM7 COM8 COM9 COM10
D0="1"
PAGE
Column Address
Segment Drivers
(1-5) Segment Driver Segment driver generates driving waveform segment terminal accordance with display data. (1-6) Common Driver Common driver generates driving waveform common terminal. (1-7) Electrical Variable Resistor (E.V.R.) Electrical Variable Resistance used adjust driving bias voltage V0~V2. (1-8) Scan Controller scan controller used control input scan data. (1-9) Data Buffer buffer stores scan data before reading (1-10) Oscillator With external resistor, Oscillator generates master clock. (1-11) Reset Circuit Reset circuit uses voltage detecting function reset internal circuit whenever power turns drops below certain level voltage.
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NJU6539
(1-12) General Output Port signals outputted through these ports. duty cycle variation signal from 100% divided into steps, driving control, duty cycle variation divided into steps. different value each port separately. Either steps steps signal selected output through setting Program/Port Mode. General Port Mode duty cycle signal selected from steps. data Po1~Po4 ports below. First select output port through setting Output Port instruction, then enable General Port mode through setting Program/Port Mode, then data selected output port.
Output ports (D1=1) Select port Select General Port Mode(D1=0)
Display ON/OFF Output Ports ON/OFF Output Port Program/Port Mode
Setting Upper bits data Setting Lower bits data Execute
waveforms like below (64/128 duty ports)
1/128step 5us(200kHz) 1-frame 0.64mS(1.56kHz) fOSC 400kHz
only output signal, following data input. ~PWM "00000000" (0/128Duty) ~PWM "1******* (128/128Duty) Don't Care)
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NJU6539
Port Mode This mode used driving control. sweep function brightness correction function (Gamma curve adjustment) available. duty cycle signal selected from steps. Even change brightness linear, human eyes perceive curve change. built-in brightness correction function rectify difference between actual luminance appearance. According following compensation curve, steps selected from steps PWM. nonlinear luminance characteristic rectified that looks like linear appearance.
Brightness Correction (16step) Internal Value Value
data Po1~Po4 ports below. First select output port through setting Output Port, then enable Port mode through setting Program/Port Mode, then setup data selected output port.
Output ports (D1=1) Select port Select Port Mode(D1=1)
Display ON/OFF Output Ports ON/OFF Output Port Program/Port Mode
Setting Upper bits data(any value) Setting Lower bits data Execute
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NJU6539
staggering output waveforms' phases, allowable dissipation package reduced. brightness selected from levels brightness correction.
1-frame
1/128step 5µS(200kHz) 0.64mS(1.56kHz) 1-frame 2.56mS(391Hz) fOSC =400kHz
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NJU6539
Sweep Function Sweep Function allows smooth color-change LED. setting initial value, count step, sweep direction stepping time, adjusted data realize smoothly color-changing. Sweep function used either General Port Mode (max. count) Mode (max.16 count). program, NJU6539 will send request signal pulled "L", value last count will maintained outputted. Request signal used scan request signal too.
signal signal signal
value
Stop Start Point Variable Value Stepping Time Stepping Time
HALT DOWN
Output ports (D1=1) Select port Sweep Function (D0=1) Sweep Direction Stepping Time
Display ON/OFF Output Ports ON/OFF Output Port Program/Port Mode Slope Stepping Time
upper bits data data/Count Step lower bits data upper bits count step data/Count Step lower bits count step Sweep function Detect signal Read Flag data/Count Step
Next Sweep
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NJU6539
Instruction interface 3-wire serial interface. serial data transferred synchronously with clock. data interrupted instruction data display data (For details, refer [data input timing]), instruction table shown below, MSB. Table Instruction Code Instruction
Don't Care) Code
Description
D0=0: display OFF, 0=1: display D1=0: ports OFF, D1=1: ports D0=0: PAGE D0=1: PAGE bits data register. bits data register. Write data DDRAM
Display ON/OFF Output ports ON/OFF Page address Column address (Upper bits) Column address (Lower bits) Display data write select Display inverse pixels Reset E.V.R. register
Address Address
Write data
Reverse column address D0=0: Normal, D0=1: Inverse D0=0: Normal, D0=1: Inverse D0=0: Normal, D0=1: pixel Initialization Contrast control data steps) Duty (1/8,1/9,1/10) (D2, D0)=(0, 1/8Duty (D2, D0)=(0, Duty (D2, D0)=(0, 1/10 Duty Power save mode (D1, D0)=(0,0): Normal (D1, D0)=(0,1): Power save (D1, D0)=(1,0): Power save (D1, D0)=(1,1): Power save frequency, select (NJU6539FC2: D0=0 fsys/128, D0=1 fsys/256 D1=0 Po4, D1=1 Select output port
(D1, )=(0,0): )=(0,1): (D1, )=(1,0): )=(1,1):
E.V.R. data
Duty select
Duty
Power save mode
Power save
frequency/Po4 (S1)
output port
Port
program/port mode
D0=0 Sweep Function disable, D0=1 Sweep Function Enable D1=0 General Port mode D1=1 Port mode upper bits register. Lower bits register.
data count step
Upper bits Lower bits Slope
data count step
Slope Stepping time Program Testing
Stepping time
data changing direction changing speed when program function used.
Exec., Exec., Exec., Exec.
Test data
this instruction.
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NJU6539
Instruction Description Display /OFF Output Port ON/OFF
pixels off, waveform from driver changed, drivers output Display ports output regardless data. General output ports output signal. Page Address page address before writing display data DDRAM Page area display data, valid. Page area icon data, valid. Page
Column Address column address before data writing. address will valid after both upper 3-bit lower 4-bit data into column address register. Once column address setup, will automatically increase (+1) whenever DDRAM accessed, DDRAM continuously accessed without "column address" instruction. column address will stop increment page address will change when last address (41)H accessed.
Upper 4-bit Lower 4-bit
Column address (HEX)
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NJU6539
Display Data Write This instruction display data writing into selected column address DDRAM. column address automatically increases (+1) whenever display data written, display data continuously written without "column address" instruction. Write data
care Select This instruction reverses column address. correspondence relationship between column address segment driver shown Table segment driver output order inversed. This instruction reduce placement limits assembly.
Clockwise output (Normal) Counterclockwise output (Inverse)
Display Inverse D=0, without changing data DDRAM, status pixels will inversed.
Normal Inverse
data correspond "On" data correspond "On"
Pixels This instruction turns entire pixels regardless contents DDRAM. doesn't change contents DDRAM. This instruction priority over "Display Inverse" Instruction.
Normal Display pixels
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NJU6539
Reset This instruction resets following status, however doesn't change contents DDRAM. Because different from hardware reset, please execute Power Reset Hardware Reset when switch After reset: Page address: page Column address: (00)H register: Duty select: 1/10 Duty terminal. frequency: fsys/128 output port Sweep Function disable, General Port mode upper instruction "0,0,0,0" lower bits instruction "0,0,0,0" instruction ="0, instruction ="0, data DDRAM affected initialization.
Register Through E.V.R. register, driving voltage VLCD selected levels. binary code "0000" when contrast adjustment unused. E.V.R. data
VLCD2 terminal level (Typical) LCD1 0.968V LCD1 0.937V LCD1 0.909V LCD1 0.882V LCD1 0.857V LCD1 0.833V LCD1 0.811VLCD1 0.789V LCD1 0.769V LCD1 0.750V LCD1 0.731V LCD1 0.714V LCD1 0.698V LCD1 0.682V LCD1 0.667V LCD1
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NJU6539
Duty Select Three duty ratios 1/8, 1/10 available. Duty
Duty ratio Duty Duty 1/10 Duty
Scan Common COM1 COM8 (5x7 character 1-icon) COM1 COM9 (5x7 character 2-icon) COM1 COM10 (5x7 character 3-icon)
Power Save Mode When Power Save mode drivers output "L", built oscillator stops working keys pressed, oscillator start working), operating current reduced. Under Power Save mode, status scan output terminals selected. status "L", there output scan signal from pin. Under Power Save mode, outputs from Po1~Po4 ports just kept before Power Save mode will canceled when operate normally. Internal OSC.
Power save
Normal Power save Stop Display Power save Stop Display Power save Stop Display status during scan signal. (NJU6539FC2: used Po4. Refer instruction setting.
Function
scan output terminals
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NJU6539
Frequency (S1) This instruction used frequency, choose (for NJU6539FC2: signal output port (Po4) scan port (S1).
Port
frequency
fsys frequency. (Default) fsys frequency port (Po4) scan port
Output Port This instruction used select port output. data, which determined Program/Port Mode Data Count Step, will output selected port.
port
output port
Program Port Mode This instruction used enable/disable Sweep function selects port mode. Port mode Sweep function
Sweep function disable Sweep function enable General port mode port mode
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NJU6539
Data Count Step This instruction used data count step selected port (Po1~Po4). General Port mode, duty cycle variation signal from 100% divided into steps. Port mode, steps available. using Sweep function, after data setup, data will outputted from next frame. using sweep function, initial value data count step need input, then execute Program finally data will outputted from next frame. upper bits data shall input first then lower bits, after lower bits setup over, data will outputted from next frame. Only setting upper bits will change data.
Upper bits Lower bits
PWM7~PWM0: data General Output ports Po1~Po4. data reached maximum (minimum) value before count-up over, data will return (128/128), count (down) from (128/128) continually until count step counted. Ex.) Port Mode Start point value (27/128 duty) Counter Step Sweep Direction
Value
15(Max)
Start Point
Variable Value Stop Point
8(Start) (Count (Max) (Min) (Stop)
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NJU6539
Port mode Value
Counter Number
DUTY
Don't Care)
Counter Number
0/128 1/128 2/128 3/128 4/128 5/128 6/128 7/128 8/128 9/128 10/128 11/128 12/128 13/128 14/128 15/128 16/128 17/128 18/128 19/128 20/128 21/128 22/128 23/128 24/128 25/128 26/128 27/128 28/128 29/128 30/128 31/128 32/128 33/128 34/128 35/128 36/128 37/128 38/128 39/128 40/128 41/128 42/128 43/128 44/128 45/128 46/128 47/128 48/128 49/128 50/128 51/128 52/128 53/128 54/128 55/128 56/128 57/128 58/128 59/128 60/128 61/128 62/128 63/128 64/128
65/128 66/128 67/128 68/128 69/128 70/128 71/128 72/128 73/128 74/128 75/128 76/128 77/128 78/128 79/128 80/128 81/128 82/128 83/128 84/128 85/128 86/128 87/128 88/128 89/128 90/128 91/128 92/128 93/128 94/128 95/128 96/128 97/128 98/128 99/128 100/128 101/128 102/128 103/128 104/128 105/128 106/128 107/128 108/128 109/128 110/128 111/128 112/128 113/128 114/128 115/128 116/128 117/128 118/128 119/128 120/128 121/128 122/128 123/128 124/128 125/128 126/128 127/128 128/128
DUTY
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NJU6539
Mode Value
Don't Care)
Counter Number
0/128 1/128 2/128 3/128 5/128 8/128 13/128 19/128 27/128 36/128 46/128 59/128 73/128 90/128 108/128 128/128
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DUTY
NJU6539
Slope Stepping Time changing speed signal count direction programmed this instruction. Stepping Time defined time that count step takes.
Direction
Stepping Time
Stepping Time Port mode Mode 4-frame 8-frame 8-frame 16-frame 12-frame 24-frame 16-frame 32-frame Direction HALT DOWN Don't care
Program program, request signal CPU, become low, value will maintained last count. Because request signal also used scan request signal, necessary read data determine which
Program Execution
Program Execution Program Execution Program Execution Program Execution
Maker Test This instruction used only device testing manufacturer. this instruction mistake, reset data again ordinary operation, Using reset instruction inputting into RSTb make testing mode ineffective
Test Data Normal mode
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NJU6539
Example Using Sweep Function Program/Port Mode "1", Sweep Function (PWM program) enabled, Program "1", Sweep function starts work, changes from automatically. After execution program, output request signal last frame signal. will detect signal from which port, ready setting next program. request signal will outputted even after data readout operation, from next data input, output request signal will stopped. Program/Port Mode "0", executed program will stopped, request signal output too. Example) program
program execution output next Program.
Initial data output
last data output
frame
Program enabled Program executed
become when program executed.
Data input Read port flag Data input
program Even data readout executed, instruction instruction request signal will sent next frame.
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NJU6539
Scan Circuit scan circuit configure max. matrix read many 25-key inputs. total number varies with different setting Frequency/Po4 (S1). scan data taken steps, first confirms whether pressed comparing scan data straight scan cycle, scan data same, then send scan data MPU. pressed, after 322T seconds (T=1/fsys=16/fosc, fsys: internal system clock frequency), terminal becomes request signal. Because ="L" also used request signal Sweep function. necessary know request signal which one. scan circuit does require external diode prevent from circuit short. Shown below, resistance ohm) when transistor different from resistance (20k ohm) when transistor "L", even keys were pushed simultaneously, there little current flowing into side. Therefore level output maintained, short among output pins avoided.
Internal equivalent circuit (VDD=5V)
(4-1) Relation Between Scan Data Matrix relation between data (KD) matrix shows below, when pushed, (n=1~25) "1". case keys application, "0". Under Power Save mode1, KD20 "0". Under Power Save mode2, KD15 "0". terminals, which connected keys, should open. KD10 KD11 KD12 KD13 KD14 KD15 KD16 KD17 KD18 KD19 KD20 KD21 KD22 KD23 KD24 KD25
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NJU6539
(4-2) Timing Scan scan cycle 160T seconds (T=1/fsys=16/fosc, fsys: Internal system clock frequency). identify whether pressed not, scan will conducted twice before possible data output. both data during scan cycles, key-press action recognized. After 322T seconds since scan starting, output request signal data readout. When ="L", next scan operation will stop until data read out. data different scan operations, scan will done again, therefore, key-press action shorter than 322T seconds, possible that there data output
160T[s] T=1/fsys =16/fosc (fsys: Internal system clock frequency)
322T
state S1~S5 decided Frequency/Po4 (S1) Power Save Mode. scan cycle timing data readout request same matter which Power Save mode used.
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NJU6539
(4-3) Normal Mode scan operation under normal mode follows. S1-S5 pins pressed. When pressed, corresponding (n=1~5) pins will become "H". soon keys pushed, scan operation starts, this operation will done twice continuously. both scan data scan cycle, scan operation will stop. scan data different, key(s) still being pressed, scan operation will continue until key-press action confirmed pressed anymore. scan operation will start again after data read CPU. When scan data fixed (two scan data same), will output request signal data read. When detects this request signal, data read will conducted. After data read, becomes"H", waits next scan data. Because terminal open-drain type output circuit, pull-up impedance power supply required, more than pushed, will determine whether multi scan operation not.
scan example (Normal mode)
T=1/fsys =16/fosc
scan 321T[s] 321T[s] 321T[s]
Data Data data readout data Readout request Data data readout data Readout request data read data Readout request
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NJU6539
(4-4) Power Save mode Under Power Save mode, scan operation like below. S1-S5 pins according Power Save Mode. l="L" pressed. When pressed, corresponding (n=1~5) pins will become "H". Under Power Save mode pins S1-S5 "H". pushed, oscillation circuit starts work, scan operation will executed twice. same data obtained this scans, scan operation oscillation circuit will stop working. data different this scans still being pushed, another scan operations will cuted. When scan data fixed, will output request signal data read. When detects this request signal, data read will conducted. After data read, becomes "H", waits scan data, Power Save mode still effective. Because terminal open-drain type circuit, pull-up impedance power supply required. more than pushed, will determine whether multi-key scan operation not. scan example (Power Save mode Ex.) D0="0", D1="1" (S5="H" Power Save)
When line pushed, oscillation circuit start working scan operation begin.
Under above Power Save mode, these diodes used prevent malfunction during multi-key scan operation. T=1/fsys =16/fosc
Scan 321T[s] 321T[s]
Data
Data
Data data read data read request
data read data read request
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NJU6539
(4-5) Multi-key Scan Operation described Scan Circuit, even several keys pushed simultaneously, S1~S5 pins maintained level (normal mode), without diode, scan data detected read out. But, more than keys pressed like Figure will recognized pressed. prevent this kind malfunction, diodes used like Figure software reject possible misread multi-key input. (For example, make invalid keys pushed simultaneously)
Pressed Misread
Fig. Miss-recognized multi-key scan operation Under Power Save mode (only keys line valid) Power Save mode (only keys lines valid), inactive keys active keys pushed together like Figure will recognized pushed, this case, software reject misread diodes need used Figure
Inactive keys Pressed Misread
Active keys Misread prevent diodes
Fig. Connect miss-recognition prevent diodes
Fig. Miss-recognition under Power Save mode
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NJU6539
(4-6) Scan Data Readout Data Readout minimum period between pressing becoming t1=332T seconds (T=1/fsys=16/fosc), key-press unstable noise strong, scan cycle will conducted again, time frame becomes t1=676T seconds. After becoming "L", there scan operation until scan data read out. Once scan data fixed, even there change status, scan data will maintained until read out. data readout during SIO= "H", scan data Power Save flag (PSF) data cannot output correctly. Exp. Data Readout interrupt processing data below. When there interruption request, will checked, "L", key(s) recognized being pushed (key ON), SIO= "H", key(s) recognized being pushed (key OFF). verify correctly, time frame interrupt processing shall longer than t1+t2 (t1: scan time, considering unstable scan data, shall 676T, data readout time). Sequence data reading operation
Interrupt
SIO="L"?
data readout
interrupt
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NJU6539
Timing chart data readout operation
status Interrupt
Decision
scan time data readout time Interrupt cycle
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NJU6539
Reset When power supply voltage lower than VDET (power down detect voltage, typically 1.6V), device will initialized internally generated reset signal. This function allows NJU6539 initialized whenever power OFF. (5-1) Initialization oscillation circuit stops working Display scan operation data buffer (5-2) Status Output Output terminals SEG1 SEG65 COM1 COM10 Po3/S0 Reset status
This terminal outputs general output port. Because terminal open-drain type output circuit, pull-up impedance power supply required. data readout executed during power reset, read data fixed "H".
reset instruction cannot substitute hardware reset. instruction only initialize from items follows. Initialization (Default) Clear serial interface register Display select ="0" (Normal mode) Normal Display Non-inverse display Whole display ="0" (Normal mode) Power Save mode ="0, (Normal mode) Page Address page Column address Register Duty Select 1/10 Duty Output Port (Po1~Po4) (fosc/2)/128 Po4/S1 13.Port Select using program, Po1~Po4 output port data/count step Register (upper bits) data/count step Register "0,0,0,0"(lower bits) Slope Stepping Time "0,0", slope =HALT Program program executed Po1~Po4 (5-3) Initialization Hardware After power hardware reset NJU6539 realized inputting longer-than-10µs reset signal into RESb pin. will return normal operation about 1.0µs(max.) later from rising edge reset signal.
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NJU6539
(5-4) Power Reset Operation With built-in power-on-reset circuit (voltage detect), device will initialized during power when going down below VDET. reset operation will conducted during changing from VDET period. this period less than correct initialization guaranteed. Please capacitor make sure reset period longer than other hand, hardware reset used when power supply cannot meet time demand.
Internal transistor turn voltage
VDET(1.8V typ.)
Internal reset signal
Normal
Reset time (longer than 1mS)
VDET (1.6V typ.)
Internal transistor turn voltage
Internal reset signal
Normal
Reset time (longer than 1mS)
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NJU6539
Driving ltage Generation Circuit driving bias voltages (VLCD2 from dividing input voltage VLCD1 built-in 16-step electronic volume used fine adjustment bias voltage. stabilize bias voltage, external capacitors need used. parameter capacitors shall determined according characteristics.
Power Supply
Duty ratio Bias VLCD
1/8,1/9,1/10 VLCD2-VSS
Internal NJU6539
E.V.R. (16-steps)
VLCD1 (Note VLCD2 (Note (Note
(Note
VLCD
(Note
Note Typical values resistors.
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NJU6539
Data Input Timing Data format shown below. When terminal "L", ready data output. When terminal rising edge, terminal ="H", ready data input.
state Output
Input
Output
Note1) Data fetched rising edge. Note2) rising edge signal, input data will interrupted display data instruction code according Note3) input data less than bits, data will fetched. Note4) input data longer than bits, last bits fetched valid data.
Data Output Timing data output format shows bellow. data output mode status terminal rising signal terminal.
KD24 KD25
Port flag state Output
flag Output
data Output
(8-1) Port Flag (Po1~Po4) When Sweep Function over, this flag "1". (8-2) Flag When scan over there scan data, this flag "1", there scan data, this flag "0". When flag "0", make readout data, data indefinite. (8-3) Power Save Flag (PSF) When flag "1", after KD25 read out, will outputted. "1", Power Save mode PSF= "0", normal mode
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NJU6539
ABSOLUTE MAXIMUM RATINGS
Ta=25°C
PARAMETER Supply voltage SYMBOL VLCD VIN1 Input terminal voltage VIN2 VOUT1 Output terminal voltage VLCD2, terminal -0.3 VLCD+0.3 terminal VLCD1 terminal OSC, SCL, terminal CONDITIONS RATINGS -0.3 +7.0 -0.3 +11.0 -0.3 VDD+0.3 UNIT
terminal -0.3 +6.0 OSC, VOUT2 -0.3 VDD+0.3 Po3, terminal 1000 Ta=25°C QFP100-C2 Power dissipation Pdmax Ta=25°C QFP100-G1 Storage temperature Tstg +125 Operating temperature Topr Note pins potential values specified VSS=0V. Note exceed absolute maximum ratings, otherwise stress cause permanent damage also recommended that used range specified electrical characteristics, electrical stress cause mulfunctions impact reliability Note Decoupling capacitor should connected between stabilized operation.
Ver.2006-04-26
NJU6539
ELECTRICAL CHARACTERISTICS
Parameter Power supply Power supply Output voltage Input voltage level input voltage level input voltage level input voltage Hysteresis voltage level input current level input current Pull-up resistance Pull-down resistance Output off-leak current level output voltage Symbol VLCD1 VLCD2 VIH(1) VIH(2) VIL(1) IOFFH VOH(1) Condition VLCD1 VLCD2 SCL, SIO, SCL, SIO, SCL, SIO, SCL, SIO, SCL, SIO, RESb VDD=5.0V, VDD=5.0V, SIO, VO=5.5V VDD=5.0V, VDD=3.0V, level output voltage level output voltage level output voltage level output voltage Driver ON-resistance (COM) Driver ON-resistance (SEG) Oscillation Frequency VOH(2) VOL(1) VOL(2) VOL(3) RCOM RSEG fOSC Driving voltage Bleeder resistance E.V.R. resistance Power down detect voltage Reset time Reset pulse width REVR VDET IDD1 IDD2 Operating current ILCD1 E.V.R. value "0,0,0,0" LCD1=8.0V VLCD2-VSS, Ta=25°C VLCD1-VLCD2, Ta=25°C RESb RESb Power save mode VDD=5.5V, Output open fOSC=400kHz, 10.0 -250uA VDD-1.1 VDD-1.0 VDD-0.6 0.05 VDD=5.0V, -10mA VDD=3.0V, -5mA VDD=5.0V, 25µA VDD=3.0V, VDD=5.0V, 10mA VDD=3.0V, Ta=25°C, VO=V LCD2, VSS, +Id=1µA (COM terminal) Ta=25°C, VO=V LCD2, VSS, +Id=1µA (SEG terminal) Ta=25°C, VDD=5.0V ROSC=180k VDD=2.7 5.5V, 85°C Typ. Max. 10.0 2/3VLCD1 VLCD1 3/4VLCD2 VLCD2 2/4VLCD2 VLCD2 1/4VLCD2 VLCD2 0.6VDD 0.8VDD 0.2VDD 0.25VDD -5.0 VDD-1.2 VDD-0. VDD-0.
-500uA
Power save mode VLCD1=10.0V ILCD2 1000 Output open fOSC=400kHz, Note order VLCD1VLCD2V0V1 V2VSS must maintained. Note RCOM resistance between power supply terminals (VSS, VLCD2, each common terminal, supply voltage (VSS, VLCD2, each segment terminal respectively, measured when current flown into every common segment terminals same time.
Ver.2006-04-26
NJU6539
CHARACTERISTICS
VDD=2.7 5.5V, 85°C PARAMETER SYMBOL CONDITION UNIT NOTE
level clock pulse width WCLL level clock pulse width WCLH Data setup time SCL, Data hold time SCL, wait time setup time hold time level width output delay time SIO, Rpu=4.7k, CL=10pF rise time SIO, Rpu=4.7k, CL=10pF rise tine fall time Note Because terminal Open-Drain type output, delay rise time varies with
Write operation
tWCLL tWCLH tWCL
data read operation
tWCLH tWCLL
INVALID
Ver.2006-04-26
NJU6539
Relation between oscillation frequency frame frequency
duty
line select time(40 T[s])
1/fsys 16/fosc (fsys Internal system clock frequency)
COM1
VLCD2
1frame
1frame
SEGn
VLCD2
Ex.) fosc=400kHz Frame frequency =1/(40T duty)=1/(40 (16/400kHz) 8)=78.1(Hz)
1/10 duty
1/fsys 16/fosc (fsys Internal system clock frequency)
line select time(35 T[s])
COM1
VLCD2
1frame
SEGn
1frame
VLCD2
fosc=400kHz Frame frequency =1/(35T duty)=1/(35 (16/400kHz) 10)=71.4(Hz)
Ver.2006-04-26
NJU6539
APPLICATION CIRCUIT
RESb
COM1 -COM10 SEG1
10com 65seg matrix panel
VLCD
VLCD1 VLCD2
NJU6539
SEG65 General output ports Po4/S1
Po4/S1 matrix
[CAUTION] specifications this databook only given information without guarantee regards either mistakes omissions. application circuits this databook described only show representative usages product intended guarantee ermission right including industrial rights. products this databook appropriate certain equipment where reliability critical where products subjected extreme conditions. Thus, should consult sales office before using products vehicle control equipment.
Voltage-Detect reset circuit, rising time during Power falling time during Power must kept longer than 1ms. terminal requires external pull-up resistor connected power. This capacitor bias voltage stabilization should selected according characteristics LCD. terminal either general output ports scan signal output terminals.
Ver.2006-04-26

10COM 65SEG 1/8, 1/9, 1/10 Duty BITMAP DRIVER with SCAN GENERAL D

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