Sony ICF-C630 - IC Pin Description

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ICF-C630
5-6. IC PIN DESCRIPTION
• IC105 µPD789488GC-A23-8BT (SYSTEM CONTROL, LCD DRIVER)
Pin No. Pin Name I/O Pin Description
1 CAPH — Connect to capacitor (H)
2 CAPL — Connect to capacitor (L)
3 to 5 VLC2 to VLC0 O LCD drive bias voltage output 2 to 0
6 to 9 COM0 to COM3 O LCD drive common data output 0 to 3
10 to 34 S0 to S24 O LCD drive segment data output 0 to 24
35 to 37 P85 to P87 O Not used. (Open)
38 AVDD — Power supply pin (+3.3 V)
39 INIT I Destination setting pin (Fixed at L)
40 P66 I Destination setting pin (Fixed at L)
41 to 46 P65 to P60 I Not used. (Fixed at L)
47 AVSS — Ground
48 VDET1 I Down voltage detection (+2.3 V)
49 VDET2 I Down voltage detection (+2.1 V)
50 VDET3 I Down voltage detection (+1.9 V)
51 BUZZER O Buzzer output
52 P30 O Not used. (Open)
53 to 55 P25 to P23 O Key source output 2 to 0
56 to 58 KS2 to KS0 O Not used. (Open)
59, 60 P11, P10 O Not used. (Open)
61 to 64 KR3 to KR0 I Key return input 3 to 0
65 BAND O Band select output (L: FM, H: AM)
66 MUTING O Mute output
67 POWER O Power output
68 AC/DC I AC/DC mode input (L: AC, H: DC)
69 IC0 — Not used. (Fixed at L)
70 XT1 I Sub clock input (32.768 kHz)
71 XT2 O Sub clock output (32.768 kHz)
72 VDD — Power supply pin (+2.5 V)
73 VSS — Ground
74 X1 I Main clock input (4.19 MHz)
75 X2 O Main clock output (4.19 MHz)
76 RESET I Reset input
77 P53 O Not used. (Open)
78 to 80 LIGHT1 to LIGHT3 O LCD backlight dimmer control output 1 to 3