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R - 5 0 1 F K
R-501FW
Pin No.
Signal
I/O
27
RESET
IN
28
P71
OUT
29
P70
IN
30
XIN
IN
31
XOUT
OUT
32
VSS
IN
33
P27
OUT
34
P26
OUT
35
P25
OUT
36
P24
OUT
37
P23
OUT
38
P22
OUT
39
P21
OUT
40
P20
OUT
41-48
P17-P10
OUT
49-50
P07-P06
OUT
51-72
OUT
SEG21-SEG0
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.
Terminal not used.
Signal similar to P47.
When either G9 line on key matrix is touched, a corresponding signal will be input into
P70.
Internal clock oscillation frequency input setting.
The internal clock frequency is set by inserting the ceramic filter oscillation circuit with
respect to XOUT terminal.
Internal clock oscillation frequency control output.
Output to control oscillation input of XIN.
Power source voltage: -5.0V.
VC voltage of power source circuit input.
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.
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.
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.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to AN2, P41, P45, P47 and
P70 terminal while one of G5 line keys on key matrix is touched.
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.
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.
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.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P41, P45, P47 and P70
terminal while one of G1 line keys on key matrix is touched.
Terminal not used.
Terminal not used.
Segment data signal.
Connected to LCD.
The relation between signals are as follows:
LSI signal (Pin No.)
LCD segment
SEG 21 (51) ............................ SEG 22
SEG 20 (52) ............................ SEG 21
SEG 19 (53) ............................ SEG 20
SEG 18 (54) ............................ SEG 19
SEG 17 (55) ............................ SEG 18
SEG 16 (56) ............................ SEG 17
SEG 15 (57) ............................ SEG 16
SEG 14 (58) ............................ SEG 15
SEG 13 (59) ............................ SEG 14
SEG 12 (60) ............................ SEG 13
SEG 11 (61) ............................ SEG 12
Description
LSI signal (Pin No.)
SEG 10 (62) ........................... SEG 11
SEG 9 (63) ........................... SEG 10
SEG 8 (64) ............................. SEG 9
SEG 7 (65) ............................. SEG 8
SEG 6 (66) ............................. SEG 7
SEG 5 (67) ............................. SEG 6
SEG 4 (68) ............................. SEG 5
SEG 3 (69) ............................. SEG 4
SEG 2 (70) ............................. SEG 3
SEG 1 (71) ............................. SEG 2
SEG 0 (72) ............................. SEG 1
20
LCD segment
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