Aiwa FR-DA400 Service Manual page 13

IC DESCRIPTION
IC, LC72343G
Pin No. Pin Name
1 XOUT
2 TEST2
3 PA3
4 PA2
5 PA1
6 PA0
7 PB3
8 PB2
9 PB1
10 PB0
11 PC3
12 PC2
13 PC1
14 PC0
15 PD3
16 PD2
17 PD1
________
18 INT/PD0
19 PE1
20 BEEP/PE0
21 PF2
22 PF1/ADI1
23 PF0/ADI0
24 VSS
25 PG3/S20
26 PG2/S19
27 PG1/S18
28 PG0/S17
29 PH3/S16
30 PH2/S15
31 PH1/S14
32 PH0/S13
33-44 S12-S1
45 COM4
46 COM3
47 COM2
48 COM1
49 DBR4
50 DBR3
51 DBR2
52 DBR1
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I/O
O Connections for a 75kHz crystal oscillator element.
I IC test pins. These pins must be tied to ground.
I
I
Special-purpose key return signal input port.
I
I
O
O
Special-purpose key source signal output port.
O
O
I/O
I/O
I/O
I/O
General-purpose I/O port.
I/O
I/O
I/O
I/O
O
General-purpose output port.
O
I
I General-purpose input and A/D converter input shared function port.
I
— Ground pin.
I/O
I/O
I/O
I/O
LCD driver segment output and general-purpose I/O shared function port.
I/O
I/O
I/O
I/O
O LCD driver segment output pins.
O
O
LCD driver common output pins.
O
O
—
—
LCD power supply stepped-up voltage pins.
—
—
Description
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