Pioneer CDX-P1250 Service Manual page 39

Pin No. Pin Name
65–68 A6-A3
69 A10
70 A2 & (EPSK)
71 A1 & (EPDI)
72 A0 & (EPDO)
73 NC
ejsw
74
mag
75
77 NC
78 I13
79 I2
80 I4
81–88 D0-D7
89,90 NC
91 DSP
disk
92
93 ELVPVO
94 ELVREF
95 TRP
96 AVSS
97 VDIN
98 VREF
99 AVCC
100 EPCS
*PD5513A
31
21
50
40
I/O Format Function and Operation
O C SRAM address bus output
O C SRAM address bus output
O C SRAM address bus output and (E2PROM clock output)
O/I C SRAM address bus output and (E2PROM data input)
O C SRAM address bus output and (E2PROM data output)
Not used
I Eject key switch interrupt input
I Magazine lock switch interrupt input
Not used
O C Motor driver control output
O C Motor driver control output
O C Motor driver control output
I/O C SRAM data bus
Not used
I DISC detect timing input
I Disc detector input
I Voltage input from ELV position sense
I ELV reference voltage input
I Tray position input
I A/D GND
Power supply short sensor input
I A/D converter reference voltage input
A/D VCC
I/O C E2PROM detect input , Chip select output
100
80
81
61
TC7SH32FU
Format
C
NM
1 IN B
2 IN A
3 GND
CDX-P1250
Meaning
C MOS
Middle resistivity
N channel open drain
5 VCC
4 OUT Y
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