14
R-509FW
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