Test signal input (connect to GND)
Not used (open)
Clock input for receiver
Not used (open)
Data input for receiver
Not used (open)
Reset signal input
Interruptt signal input for receiver
Hold switch signal input
Input terminal at key pressing in HOLD condition
Not used (open)
Retransmission Request output
Not used (open)
Not used (open)
Not used (open)
Power supply minus terminal (GND)
Power supply plus terminal
CR oscillator input
CR oscillator output
Regulator output
Step-up capacitor connection terminal
Regulator output of LCD system
Step-up output of LCD system
Step-up output of LCD system
Common output of LCD system
Common output of LCD system
Pin No.
Pin Name
I/O
Function
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
TEST
—
RCLK
—
RDATA
NC
RESET
INT
HOLD SW
HOLD KEY
—
RQT
—
—
—
VSS
VDD
OSC1
OSC2
VS1
CA
CB
CC
VL1
VL2
VL3
COM0
COM1
I
I
I
O
I
—
I
I
I
I
I
O
O
O
O
(I)
(I)
I
O
O
—
—
—
O
O
O
O
O
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9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299