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TK-760G/762G
SEMICONDUCTOR DATA
Shift Register : BU4094BCFV
■ Terminal function (TX-RX unit IC510)
Pin No.
Port Name Function
4 Q1 W/N Wide/Narrow SW. Narrow : H
5 Q2 MUTE
MIC mute (M models only). Mute : H
6 Q3 MBL MIC/LCD backlight control.
Backlight on : H
7 Q4 LED0 Red LED. LED lights : H
11 Q8 BSHIFT Beat shift. Shift on : H
12 Q7 AFREG2 Base band IC inter register select 2.
13 Q6 AFREG1 Base band IC inter register select 1.
14 Q5 LED1 Green LED. LED lights : H
■ Terminal function (TX-RX unit IC9)
Pin No.
Port Name Function
4 Q1 HNC
Horn alert control. Horn alert on : H
5 Q2 8RC 8R control. RX : H
6 Q3 8TC 8T control. TX : H
7 Q4 SPMUTE
Speaker mute control. Mute on : H
11 Q8 AUX6
Option board port 6 (AUX6). AUX on : H
12 Q7 AUX5 Option board port 5 (AUX5).
13 Q6 PA/LI
PA/LIGHT control. PA/LIGHT on : H
14 Q5 RX TX/RX VCO switch. RX : L
LCD Driver : LC75833W
(Display Unit IC801 : TK-762G only)
■ Block diagram
Common
driver
Segment driver & latch
Clock
generator
Shift register
Address
detector
COM3
COM2
COM1
S35
S34
S9
S8/P8
S2/P2
S1/P1
INH
OSC
VDD
VLCD
VLCD1
VLCD2
VSS
DI
CL
CE
■ Terminal function
Pin No. Name I/O Function
1~8
S1/P1~S8/P8
O Segment output for displaying data
9~35 S9~S35 transferred from serial data.
36~38
COM1~COM3
O Common driver output. Frame
frequency fo=(fosc/384)Hz
39 VDD – Power supply for logic section
(2.7V~6.0V).
40 VLCD – Power supply for LCD driver section
(2.7V~6.0V).
41 VLCD1 I Apply 2/3 the LCD drive bias voltage
from outside. If 1/2 the bias is
applied, connect to VLCD2.
42 VCLD2 I Apply 1/3 the LCD drive bias voltage
from outside. If 1/2 the bias is
applied, connect to VLCD1.
43 VSS – GND.
44 OSC I/O Oscillation terminal.
45 INH I
Force the display to turn off regardless
of internal data. Serial data can be input
regardless of whether it is "H" or "L".
46 CE I Chip enable. Serial data transfer
terminal. Connected to the
microprocessor.
47 CL I Synchronizing clock. Serial data
transfer terminal. Connected to
the microprocessor.
48 DI I Transfer data. Serial data transfer
terminal. Connected to the
microprocessor.