Sharp R-330EK Service Manual page 25

Pin No. Signal I/O
34 INT0 IN
35 P07 OUT
36 P06 OUT
37 P05 OUT
38 P04 OUT
39 P03 OUT
40 P02 OUT
41 P01 OUT
42 P00 OUT
43 P17 IN
44 P16 IN
45 P15 IN
46 P14 IN
47 AIN7 IN
48 AIN6 IN
49 AIN5 IN
50 AIN4 IN
51 RESET IN
52 NC
Signal synchronized with commercial power source frequency.
This is the basic timing for time processing of LSI.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to AIN7, P14, P15, P16, P17
and AIN6 terminal while one of G1 line keys on key matrix is touched.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to AIN7, P14, P15, P16 and
P17 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 AIN7, P14, P15, P16 and
P17 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 AIN7, P14, P15, P16 and
P17 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 AIN7, P14, P15, P16 and
P17 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 AIN7, P14, P15, P16 and
P17 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 AIN7, P14, P15, P16 and
P17 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 AIN7, P14, P15, P16 and
P17 terminal while one of G8 line keys on key matrix is touched.
Signal coming from touch key.
When either G9 line on key matrix is touched, a corresponding signal out of P00-P07 will
be input into P17. When no key is touched, the signal is held at "H" level.
Signal similar to P17.
When either G10 line on key matrix is touched, a corresponding signal will be input into P16.
Signal similar to P17.
When either G11 line on key matrix is touched, a corresponding signal will be input into P15.
Signal similar to P17.
When either G12 line on key matrix is touched, a corresponding signal will be input into P14.
Signal similar to P17.
When either G13 line on key matrix is touched, a corresponding signal will be input into AIN7.
Input terminal to judge the model.
The signal out of P07 will be input into AIN6 through G1 line on key matrix. The LSI will
judge the model by this signal.
AH sensor input.
This input is an analog input terminal from the AH sensor circuit, and connected to the
A/D converter built into the LSI.
Used for initial balancing of the bridge circuit (absolute humidity sensor). This input is an
analog input terminal from the AH sensor circuit, and connected to the A/D converter built
into the LSI.
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.
23
Description
R-330EK
R-330EW
H : GND
L : -5V
16.7 msec.