Pin Name Description Pin Name Description
1 GND Ground 35 GND Ground
2 D3 Data 3 36 /CD1 Card Detect 1
3 D4 Data 4 37 D11 Data 11
4 D5 Data 5 38 D12 Data 12
5 D6 Data 6 39 D13 Data 13
6 D7 Data 7 40 D14 Data 14
7 /CE1 Card Enable 1 41 D15 Data 15
8 A10 Address 10 42 /CE2 Card Enable 2
9 /OE Output Enable 43 /VS1 Refresh
10 A11 Address 11 44 /IORD I/O Read
11 A9 Address 9 45 /IOWR I/O Write
12 A8 Address 8 46 A17 Address 17
13 A13 Address 13 47 A18 Address 18
14 A14 Address 14 48 A19 Address 19
15 /WE:/P Write Enable : Program 49 A20 Address 20
16 /READY:/IREQ Ready : Busy (IREQ) 50 A21 Address 21
17 VCC +5V 51 VCC +5V
18 VPP1 Programming Voltage (EPROM) 52 VPP2 Programming Voltage 2 (EPROM)
19 A16 Address 16 53 A22 Address 22
20 A15 Address 15 54 A23 Address 23
21 A12 Address 12 55 A24 Address 24
22 A7 Address 7 56 A25 Address 25
23 A6 Address 6 57 /VS2 RFU
24 A5 Address 5 58 RESET RESET
25 A4 Address 4 59 /WAIT WAIT
26 A3 Address 3 60 /INPACK
27 A2 Address 2 61 /REG Register Select
28 A1 Address 1 62 /BVD2:SPKR Battery Voltage Detect 2 : SPKR
29 A0 Address 0 63 /BVD1:STSCHG Battery Voltage Detect 1 : STSCHG
30 D0 Data 0 64 D8 Data 8
31 D1 Data 1 65 D9 Data 9
32 D2 Data 2 66 D10 Data 10
33 /WP:/IOIS16 Write Protect : IOIS16 67 /CD2 Card Detect 2
34 GND Ground 68 GND Ground
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