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