1/2,1/3 DUTY DRIVER WITH SCAN GENERAL DESCRIPTION NJU6435 du
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Ue-435 Series
1/2,1/3 DUTY DRIVER WITH SCAN
GENERAL DESCRIPTION
NJU6435 duty driver segment type panel with scan function.
Display data input data conmunicated serial data transmission, therefore, camunication between NJU6435 performed only Iines.
80-segment 120-segment displayed 40-segment driver 3-conmon 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.
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 Outline
Technology
LINE
PACKAGE OUTLINE
NJU6435XF
LINE DUTY RATIO BIAS LEVEL MAX. DISPLAY SEGMENT COWiON
NJU6435D NJU6435E NJU6435F Duty Duty Duty Bias Bias Bias Segment Segment Segment
BLOCK DIAGRAM
ItfTT
DI/DO
Mil-
3-bit Comofl
40-bit Seiment Driver 120-bit latch Circuit
Dividing Circuit
Z32E
Shift-Reiister (for Display Date)
120-bit
Interrupt Generator
Scan Shift Register
Counter
Decorder
Input Latch
Interrupt
Detection
tnUltRUI (At/1
5-898-
-NeugapanRadio CoMcL
ue-435 Series
CONFIGURATION
uouooouo uuifluiulintnnniAuiuKoinnui
d1/d0 testi test2 com, com, com,
NJU6435XF
eg,, sec,, segio sec,, sec,i eg,. eg,, seg,o sec,.
sec,.
segir
ooouoouoouooouuo
UUlUUUUUUlUlUWWUUblU
TERMINAL DESCRIPTION
SYMBOL FUNCTION
SEG, 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
Serial Data Input Output Terminal
59,60 TESTI, TEST2 Testing Terminal (Norma OPEN)
Connection
COM3 COM? COMi Common Output Terminal. Version COM3 active (Vss))
5-899
ue-435 Series
FUNCTIONAL DESCRIPTION
Operation each block
(1-1) OsciIlation 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 common 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 controlled signal
DI/DO
Display Control Mode (Input) Display Data Irput Mode (Input)
Display
Display Enforced
Scan stopped
Scan Mode (Output) When input. Inter signal Output enforced effective Irput Signal Output Mode (Output) After interript signal output, irput 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
NwgapanfhdioCoJbkL
Series
Display Data Correspond Segment Terminals C3-1) Version (1/2 Duty)
Data Segment COM! com2
SEGi
SEG2
seg3
SEG4
lilla
SEG37
seg3S
SEG39
SEG40
SEGi
SEG2
seg3
SEG4
itili
seg37
seg38
SEG39
SEG40
Data Input Output Timing
Scan Mode
_njuuinruui
Display data input lode
-firm
juiruui
di/do
fapan Radio Co., JfaL
5-901
Series
(3-2) Version (1/3 Duty)
Data Segment COMi com2 COM3
SEGi
SEGa
SEG3
SEG4
_I_I_1_1_
SEG37
SEG38
seg39
SEG40
SEGi
seg2
SEG3
SEG4
SEG37
seg38
SEG39
SEG40
SEG,
seg2
till!
D117
D118 SEGas
D119
0120
Data Input Output Timing
Scan Mode
_rLRiiruiJiiiJT
Display data input
di/do
JITUUITL
mMml
AiwAiisAinAia
Scan Mode
5-902
Neugapan Radio Co.,JfoL
ue-435 Series
Input Data Output Format (4-1) Data Format
Counter Scan Data Data
Scan Signal Correspond Counter Data follows:
Terminal
Scan Signal
1536
fose
Counter Data
fapan Radio Co., JfaL
5-903
Ue-435 Series
(4-2) Scan Output Data Double More Input.
case more depressed same time, output data follows: Below example mentioned SKKD depressed once.
Connect Diode between S0~S5 Matrix
this time, scan code output follows:
Scan output
Scan input
interrupt signal Shift data
Internal latch signal
Data
input data input data
Data
input detection input detection
interrupt signal input interrupt signal input
5-904
NtugapanRadio Co^Iid.
Ue-435 Series
Scan Timing Chart
input
KEYSCAN DATA (SO)
Internal scan latch signal
Input
Enforce
SCAN DAT* holding period
JLJlZliLJLJLJLJLJ.
input
Output -LCD display
input
interrupt signal
di/do Display Data
Input Output
SCAN DATA output
~77"x >r~por
5-905
ue-435 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 Tenperature Tstg
R/W,SCL,INH,So~S5,DI/DO Terminals
Terminals
COM,,C0M2,COM3 Terminals
5-906
hkwgapa* Radio ltd.
ue-435 Series
ELECTRICAL CHARACTERISTICS
Characteristics
PARAMETER SYMBOL CONDITIONS UNIT
Sipply Voltage
Operating Current Terminal
Input Voltage VlH(l) TNH,Ko~K4 Terminals 0.7Vdd
Input Voltage H(2) R/W,SCL,DI/DO Terminals 0.8Vdd
Input Voltage TNH,Ko~K4 Terminals 0.3Vdd
Input Voltage R/W,SCL,DI/DO Terminals 0.2Vdd
Input Current R/W,SCL,DI/DO, Terminals
Input Current R/W,SCL,DI/DO, INH,Ko~K4 Terminals
Output Voltage VoH(1) |o=-40juA INH,DI/D0,So~S5 Terminals
Output Voltage lo=-10juA SEGi~SEG40 Terminals
Output Voltage lo=-100yA Terminals
Output Voltage o=400 Terminals
Output Voltage o=10/J SEGi~SEG4o Terminals
Output Voltage o=100 COMi~COM3 Terminals
Level Voltage Vmc1/2 OO/jA COMi,COM2 Terminals
Level Voltage Vmc1/3 Terminals 1.06 1.66 2.26
Level Voltage 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
Osci 1lator Frequency R=51kQ,C=680pF
Note Version Version
fapan Radio Co., JfaL
5-907
UG-3-35 Series
Characteristics (Ta=-20~*-85"C, Vdd=5 8=0V)
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 Terminals 0.50
Data Hold Time SCL.DI/DO Terminals 0.50
Set-ip Time tScE R/W.DI/DO Terminals
Hold Time R/W,DI/DO Terminals
Hold Time R/W,SCL Terminals 1.50
Data Latch Delay Time
Clock Enable Pulse Width tWcEL Terminal
Request Pulse Width twreq Terminal 1/fosc
Data Shift Set-up Time tssf TNH.SCL Terminals
Data Output Delay Time tdkd SCL.DI/DO Terminals
Input Timing Characteristics
di/do
l*cf
t[>n
Internal Latch
Output Timing Characteristics
0120
irai
ruixLrumiui
jmjiruu
ni/no
5-908
^apcut Radie Co.,
Series
Driving Waveform (5-1) Version (1/2Bias,1/2Duty)
-Von
COM,
COM2
W512H,
"ON" correspond COMj
SEC,~SEG4o "ON" correspond COM2
SEG,~SEG4O "ON" correspond both COM, C0Ma
"OFF" correspond both COM, C0M2
Nau^apaA facte Co^IicL
5-909
Series
(5-2) Version (1/2Bias,1/3Duty)
COM!
C0M2
COM3
"OFF" segnent output correspond COMi, COM2 COMa (Saie output INH=L) "ON" segient output correspond
"ON" segment output
correspond COM2
"ON" segment output correspond COM, COM2
"ON" segient output correspond COM3
"ON" segnent output correspond COM, COM3
"ON" segient output correspond COM2 COM2 COM,
"ON" segment output correspond COM,, COM;, COM3
W768Hi
5-910
Radio Co^XU
Ue-435 Series
(5-3) Version (1/3Bias,1/3Duty)
W768lli
COMi
COM?
COM3
"OFF" segient output correspond COM,, COHs COM3 (Saie output INH=L)
"ON" segient output
correspond CuM,
"ON" segient outgut
correspond
"ON" segment output
correspond COM, C0M2
"ON" segient output
correspond COM3
"ON" segient output
correspond COM, COM3
"ON" segient output correspond C0M:- C0M3
"ON" segient output correspond COM,. C0M2 COM3
Co.,
5-911
CjrqI
Series
APPLICATION CIRCUIT
5-912
Ntufapcut Radio Co.,
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