Aiwa AM-HX100, Руководство по обслуживанию

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IC DESCRIPTION
IC, LC875164A-5V90
Pin No. Pin Name I/O Description
1 WSEL O Select signal terminal for writing flash memory (Normally “L” output).
2 WCLK O CLOCK terminal for writing flash memory (Normally “L” output). (Not used)
3 WDATA O DATA I/O terminal for writing flash memory (Normally “L” output). (Not used)
4 EMP I Electricity reduction interrupt input.
5 INTB I Interrupt request input from LC896431.
6 CHG-INT I Interrupt request input from battery charge stand loading cast (both edges).
7 ECO I Energy saving mode switch (interrupt feature possible).
8 RESET I Reset micro computer.
9 XT1 — Connected to VDD.
10 XT2 — Not used.
11 VSS1 — Connected to GND.
12, 13 CF1, CF2 — 3MHz clock.
14 VDD1 — Connected to VDD.
15 KEY0 I Main unit KEY A/D input.
16 KEY1 I Remote control KEY A/D input.
17 BATT I Power voltage A/D input.
18 VDET I For detecting V during charging.
19 BATT2 I Charged battery voltage A/D input.
20 ~ 22 NC — Not connected.
23 PD O External DAC power down control.
24 PE O EEPROM error writing prevention port (“L”= disable write).
25 VDSW O ON/OFF control output for V detection amplifier. “L” turns ON. “H” turns OFF.
26 CE3 O Chip select signal output of EEPROM (IC303).
27 CEQ O Chip select signal of LC896431.
28 DATA0 O Serial data output to LC896431.
29 DATAD I Serial data input from LC896431.
30 SCK0 O Serial clock output to LC896431.
31 DATA2 O Serial data output to EEPROM.
32 DATAE I Serial data input from EEPROM.
33 SCK2 O Serial clock output to EEPROM.
34 CE2 O Chip select signal output of EEPROM (IC301).
35 BEEP O BEEP signal output.
36 B-DISP1 O Battery remaining output 1. (Not used)
37 B-DISP2 O Battery remaining output 2. (Not used)
38 B-DISP3 O Battery remaining output 3. (Not used)
39 STALL O Power supply control output of motor driver.
40 NC — Not connected.
41 SLPWM O PWM output for VM control of motor driver.
42 VDD — Connected to VDD.
43 VSS — Connected to GND.
44 KEY0 I Standby cancel signal input by the main unit KEY.
45 KEY1 I Standby cancel signal input by remote control KEY.