1/2,1/3 DUTY DRIVER WITH SCAN NJU6435 duty driver segment type pa

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1/2,1/3 DUTY DRIVER WITH SCAN NJU6435 duty driver segment type pa

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Ue-435 Series
1/2,1/3 DUTY DRIVER WITH SCAN
NJU6435 duty driver segment type panel with scan function.
Display data input data caimunicated serial data transmission, therefore, coninun between NJU6435 performed only Iines.
80-segment 120-segment displayed 40-segment driver 3-common driver.
scan function scanning keys data transferred MPU.
NJU6435 design simple front panel, therefore easy apply mounted audio, general audio other products which have display input.
PACKAGE OUTLINE
NJU6435XF
FEATURES
40-Segment Drivers
Duty Ratio duty, bias 80-Segment Drive Version Bias Level duty, bias 120-segment Drive Version duty, bias 120-segment Drive Version Scan Function 6-out 5-in Matrix Serial Data Transmission_
Display Function Terminal)
Operating Voltage
Package C-MOS Technology
LINE
LINE DUTY RATIO BIAS LEVEL MAX. DISPLAY SEGMENT COMMON
NJU6435D NJU6435E NJU6435F Duty Duty Duty Bias Bias Bias Segment Segment Segment
BLOCK DIAGRAM
IKTT
Dl/DO
"111
3-bit Common
40-bit Saluent Driver 120-bit Latch Circuit
Dividing Circuit
Shift-Reiister (for Display Date)
120-bit
Scan Shift Resister
Interrupt Generator
Counter
Decorder
Input latch
Interrupt Detection
5-898
Radio Co.IicL bShiaftB OGOhSb?
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Series
CONFIGURATION
D1/D0 TESTI TEST2 COM, COM,
oouuuoou
-.oin-fc-lN oUUUUWUUU
NJU6435XF
SEGn SEC,. SEC,, SEGi. SEG,, SEC,. SEC,, SEG,, SEGie SEG,, SEGit SEG,,
uconnviuitouitntotncntnuiou)
TERMINAL DESCRIPTION
SYMBOL FUNCTION
SEG1 SEG40 Segment Output Terminal
41-46 Scanning Signal Output Terminal
47-51 Scanning Input Terminal (Built-in Pull-down Resistance)
Oscillating Terminal (External Connecting)
53,55 Vdd, Power Supply
Display-Off Control Input Interript Signal Output Terminal
Read Write Control Terminal
Serial Data Transmission Clock Terminal
DI/DO Serial Data Input Output Terminal
59,60 TESTI, TEST2 Testing Terminal (Normally OPEN)
Connection
com3 com2 COM, Common Output Terminal. Version com3 active (Vss))
Cogliti.-5-899
ODObSbfl
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U6435 Series
FUNCTIONAL DESCRIPTION
Operation each block
(1-1) Oscillation Circuit
Oscillation connecting external resistor capacitor.
This circuits supply basical clock signal other circuits like common driver segment driver scan circuits.
(1-2) Dividing Circuit
This circuit divide oscillating frequency, generate cannon segment output timing signals.
(1-3) Common Driver
Output common driving signal LCD.
(1-4) Segment Driver
Output segment driving signal LCD.
signal output according latched data.
(1-5) Shift-Register
During signal "H", data input shift-register synchronousing shift clock terminal.
(1-6) Counter circuit
This circuits generate scanning timing. When input, data counter transferred scan shift resistor.
(1-7) Decoder
Decoding counter output generate scan signal.
(1-8) Input Latch
When depressed, decoder output transfer latch.
(1-9) Scan Shift Register
Output data sent from counter circuits input latch serial format through DI/DO port.
Mode each terminal Initialization
(2-1) Mode each Terminal control signal
DI/DO
Display Control Mode (Input) Display Data Input Mode (Input)
Display
Display Enforced
Scan stopped
Scan Mode (Output) When input, Interrupt signal Output enforced effective Irput Signal Output Mode (Output) After interrupt signal output, input data output from this terminal synchronized clock signal.
(2-2) Initialization
NJU6435 series doesn't have initialization function display data. Therefore, data Shift Register Latch connected segment driver
unfixed when power turns
avoid meaning display, status should kept during display data transmission from controller NJU6435.
5-900-Neu Qaoajt tedio
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Series
Display Data Correspond Segment Terminals (3-1) Version (1/2 Duty)
Data Segment comi com2
segi
seg2
seg3
seg4
seg37
seg3s
seg39
seg40
segi
seg2
segs
seg4
sega?
seg3s
seg39
seg40
Data Input Output Timing
Scan Mode
-JlXUliWUlJl
Display data input iode
jirmjui
Scan Mode
fapa* Radio CoJM~
D00bS7D
-5-901
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Series
(3-2) Version (1/3 Duty)
Data Segment COMi COM; C0M3
SEGi
SEG2
SEG,
SEGi
Data Input Output Timing
Scan Mode
SEG37
SEG,
SEG39
SEGi
SEG*
SEG,
SEG4
SEG37
SEG38
SEG39
SEGi
SEG2
seg3
SEG37
D118 SEGas
D119
D120
_riJiruirLn_njL
Display data input sode
juin_
Scan Mode
DI/DO
-tt-
mMml
jinruin
5-902-
bSbRflfl3 00Db571
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Series
Input Data Output Format (4-1) Data Format
Counter Data
Scan Data
Scan Signal Correspond Counter Data follows:
Terminal
Scan Signal
1536
fose
Coulter Data
-fon, Onmm At/-5-903
GGObSVE
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Ue-435 Series
(4-2) Scan Output Data Double More Input.
case more depressed same time, output data follows: Below exanple mentioned SW(D depressed once.
this time, scan code output follows:
Scan output
Scan input
interrupt signal Shift data
Data
Internal latch signal
^Key input data
^Key input data
Data
input detection input detection
interrupt signal input interrupt signal input
[][][]b573
5-904
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U6435 Series
Scan Timing Chart
Input
KEYSCAN DATA (SO)
Internal scan latch signal
Input
Enforce
SCAN DAT* holding period
input Input
Output -LCD display
interrupt signal
di/do Display Data
Input Output
SCAN DATA output
di/do
3aaan Radio CalM-
DGObSTM1
-5-905
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Series
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL RATINGS UNIT
Operating Voltage
Input Voltage Vdd+7.0
Output Current
Output Current
Power Dissipation
Operating Tenperature Topr
Storage Temperature Tstg
R/W,SCL,INH,So~S6,DI/D0 Terminals
SEGi~SEG4d Terminals
COMi,COM2,COM3 Terminals
^apan Radio
000b57S
5-906
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US-43S Series
ELECTRICAL CHARACTERISTICS
Characteristics (Ta=-20~f85"C, VDD=5. 10A!,
PARAMETER SYMBOL CONDITIONS UNIT
Supply Voltage
Operating Current Terminal irrt
Input Voltage TNH,KoH<4 Terminals 0.7Vdd
Input Voltage R/W.SCL.DI/DO Terminals 0.8Vdd
Input Voltage Terminals 0.3Vdd
Input Voltage R/W,SCL,DI/DO Terminals 0.2Vdd
Input Current R/W,SCL,DI/DO, INH,Ko~K4 Terminals
Input Current R/W.SCL.OI/DO, INH,Ko~K4 Terminals
Output Voltage lo=-40juA INH,DI/D0,So~S5 Terminals
Output Voltage SEGi~SEG4o Terminals
Output Voltage Io=-100a/A Terminals
Output Voltage lo=400juA Terminals
Output Voltage lo=10wA SEGi~SEG4o Terminals
Output Voltage lo=100wA Terminals
Level Voltage Vmci/2 C0Mi,C0M2 Terminals
Level Voltage Vmci/3 Terminals 1.06 1.66 2.26
Level Voltage OOjl/A COMcom3 Terminals 2.73 3.33 3.93
Level Voltage Vms1/3 Terminals 0.66 1.66 2.66
Level Voltage SEGi~SEG4o Terminals 2.33 3.33 4.33
External Resistance Terminal
External Capacitance Terminal
Oscillator Frequency R=51kQ ,C=680pF
Note Version Version
lana* Radia
tsfiflflB 0G0bS7t.
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5-907
U6435 Series
Characteristics
PARAMETER SYMBOL CONDITIONS UNIT
Clock Pulse Width tWcLL Terminal 0.50
Clock Pulse Width tWcLH Terminal 0.50
Data Set-ip Time SCL,D1/DO Terminais 0.50
Data Hold Time SCLrD1/DO Terminais 0.50
Set-ip Time tSCE R/W.DI/DO Terminais
Hold Time R/W.DI/DO Terminais
Hold Time R/W,Sa Terminais 1.50
Data Latch Delay Time tdDLP
Clock Enable Pulse Width tWcEL Terminal
Request Pulse Width twreq Terminal l/fose
Data Shift Set-up Time tssf TO,SCL Terminais
Data Output Delay Time tdkd SCL,D1/DO Terminais
Irput Timing Characteristics
di/do
Internal Latch
D120
tHW.r
_/T\_
Output Timing Characteristics
injmrLrirLnji
fose
umrumj
DI/IX)
5-908-New Laotin Radia lJd-
OGDbS??
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rslwl U6435 Series
Driving Waveform (5-1) Version (1/2Bias,1/2Duty)
COMt
SEG,~SEG*0 "ON" correspond COMi
"ON" correspond COM2
SEGi~SEG40 "ON" correspond both COMi COM2
SEG,~SEG.o "OFF" correspond both COM! COM2
foii/512Hi
-vss
-Aiam IviM t4*i
b5bTflfl3 0DDb576
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5-909
CIJRCI3
U6435 Series
(5-2) Version (1/2Bias,1/3Duty)
fosc/76S
COMI-
COM2
COM3
"OFF" segient output correspond COMi, COM: COM3 (Saae output INH=L) "ON" segaent output correspond COMi
"ON" segment output correspond COM2
"ON" output correspond COMi COM2
"ON" segaent output correspond COMs
"ON" segient output correspond COM. COM3
"ON" segient output correspond COM2 OOMe COMa
"ON" segaent output correspond COM,. C0M2 COMs
5-910
-Imuui
bSblflflB DDDtjS7ci
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Series
(5-3) Version (1/3Bias,1/3Duty)
COMi
CON:
COHa
"OFF" segaent output correspond COM,, COMz COM3 (Saae output 1NH=L)
"ON" segaent output correspond COM,
"ON" segaent output correspond COM2
"ON" segaent output correspond COM2
"ON" segaent output correspond COM3
segnent output correspond COMi COM3
"ON" segaent output correspond COM? COM3
"ON" segient output correspond CON,, COM? COM3
l/3Vuc
ParlJr, tirf
bst^aaa
-5-911
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CJRC3
U6435 Series
APPLICATION CIRCUIT
5-912-
Neia QaaajtRadio CalM-
h5hc\&&3 DODbSfll Ifll
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1/2,1/3 DUTY DRIVER WITH SCAN NJU6435 duty driver segment type pa

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