14
R - 5 0 9 F W
27
RESET
IN
Auto clear terminal.
Signal is input to reset the LSI to the initial state when power is applied. Temporarily
set “L” level the moment power is applied, at this time the LSI is reset. Thereafter set
at “H” level.
28
P71
OUT
Terminal not used.
29
P70
IN
Signal similar to P47.
When either G9 line on key matrix is touched, a corresponding signal will be input into
P70.
30
XIN
IN
Internal clock oscillation frequency input setting.
The internal clock frequency is set by inserting the ceramic filter oscillation circuit with
respect to XOUT terminal.
31
XOUT
OUT
Internal clock oscillation frequency control output.
Output to control oscillation input of XIN.
32
VSS
IN
Power source voltage: -5.0V.
VC voltage of power source circuit input.
33
P27
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P41, P45, P47 and P70
terminal while one of G8 line keys on key matrix is touched.
34
P26
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P41, P45, P47 and P70
terminal while one of G7 line keys on key matrix is touched.
35
P25
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P41, P45, P47 and P70
terminal while one of G6 line keys on key matrix is touched.
36
P24
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P41, P45, P47 and P70
terminal while one of G5 line keys on key matrix is touched.
37
P23
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P41, P45, P47 and P70
terminal while one of G4 line keys on key matrix is touched.
38
P22
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P41, P45, P47 and P70
terminal while one of G3 line keys on key matrix is touched.
39
P21
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P41, P45, P47 and P70
terminal while one of G2 line keys on key matrix is touched.
40
P20
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to AN0, P41, P45, P47 and
P70 terminal while one of G1 line keys on key matrix is touched.
41-48
P17-P10
OUT
Terminal not used.
49-50
P07-P06
OUT
Terminal not used.
51-72
SEG21-SEG0
OUT
Segment data signal.
Connected to LCD.
The relation between signals are as follows:
LSI signal (Pin No.)
LCD segment
LSI signal (Pin No.)
LCD segment
SEG 21 (51) ............................ SEG 22
SEG 10 (62) ........................... SEG 11
SEG 20 (52) ............................ SEG 21
SEG 9 (63) ........................... SEG 10
SEG 19 (53) ............................ SEG 20
SEG 8 (64) ............................. SEG 9
SEG 18 (54) ............................ SEG 19
SEG 7 (65) ............................. SEG 8
SEG 17 (55) ............................ SEG 18
SEG 6 (66) ............................. SEG 7
SEG 16 (56) ............................ SEG 17
SEG 5 (67) ............................. SEG 6
SEG 15 (57) ............................ SEG 16
SEG 4 (68) ............................. SEG 5
SEG 14 (58) ............................ SEG 15
SEG 3 (69) ............................. SEG 4
SEG 13 (59) ............................ SEG 14
SEG 2 (70) ............................. SEG 3
SEG 12 (60) ............................ SEG 13
SEG 1 (71) ............................. SEG 2
SEG 11 (61) ............................ SEG 12
SEG 0 (72) ............................. SEG 1
Pin No.
Signal
I/O
Description
