Sony CFD-S22 - IC PIN DESCRIPTION; IC501 CXP83620-025 Q;026 Q (SYSTEM CONTROL)

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3. IC PIN DESCRIPTION
• IC501 CXP83620-025Q/026Q (SYSTEM CONTROL)
Pin No. Pin Name I/O Pin Description
1 WRQ I CD WRQ signal input
2 RMC I Sircs receiver input
3 MUTE O MUTE output H: Mute
4 ADJ O F TEX frequency division output
5 FSEQ I CD SENSE read clock input
6 C-CE O CD chip enable output
7 C-CL O CD clock output
8 C-DI O CD data output
9 C-DO I CD data input
10 C-SW I CD limit switch input
11 C-DRF I CD DRF signal input
12 C-RES O CD system reset output
13 C-MUTE O CD MUTE output Not used. (Open)
14 R-COUNT I Tuner PLL data input
15 R-CLOCK O Tuner PLL clock output
16 R-DATA O Tuner PLL data output
17 R-LATCH O Tuner PLL latch output
18 NC — Not used. (Open)
19 V-DATA O Volume data output
20 V-CLOCK O Volume clock output
21 P-CON O System power control output H: Power on
22 REG CHK I Regulator check signal input
23 REC I Tape record signal input H: REC
24 SDA I/O EEPROM input/output
25 – 28 KEY-1 – 4 I Key input
29 MODE CHECK I Mode set input
30 RST I System reset input
31 EXTAL I Oscillation input (4.19 MHz)
32 XTAL O Oscillation output (4.19 MHz)
33 VSS — GND
34 VL O LCD drive port ON/OFF output
35 – 37 VLC3 – 1 O LCD drive voltage output
38 – 41 COM0 – 3 O LCD drive common output
42 – 58 SEG0 – 16 O LCD drive segment output
59 SEG17 O LCD drive segment output Not used. (Open)
60, 61 NC — Not used. (Open)
62 INIT O Initial set signal output
63 TONE O TONE control output L: LPF on
64 MEGA BASS O MEGA BASS control output H: MEGA BASS on
65 BT-CHK O Battery check output H: Battery Low voltage
66 MT-CONT O MT control output H: Low voltage
67 ISS1 O ISS1 output H: ISS1 Not used. (Open)
68 ISS2 O ISS2 output H: ISS2 Not used. (Open)
69 TAPE O Tape function output H: Tape
70 RADIO O Tuner function output H: Radio
71 CD O CD function output H: CD
72 VDD — Power supply pin (+3.3 V)
73 TX O Oscillation output (150 kHz)
74 TEX I Oscillation input (150 kHz)