Sandisk CompactFlash Extreme III User Manual download pdf (Page 19)

CHAPTER 3 Interface Description

3.1 Physical Description

The host connects to SanDisk CompactFlash Memory cards using a standard 50-pin connector

consisting of two rows of 25 female contacts each on 50 mil (1.27 mm) centers.

3.1.1 Pin Assignments and Types

The signal/pin assignments are listed in Table 3-1. Low active signals have a "-" prefix. Pin

types are Input, Output or Input/Output. Sections 3.3.1 and 3.3.2 define the DC characteristics

for all input and output type structures..

Table 3-1 PC Card Memory Mode Pin Assignments

Pin No.

Signal

Name Pin Type I/O Type Pin No.

Signal

Name Pin Type I/O Type

1 GND – Ground 26 -CD1 O Ground

2 D03 I/O I1Z,OZ3 27 D11 I/O I1Z,OZ3

3 D04 I/O I1Z,OZ3 28 D12 I/O I1Z,OZ3

4 D05 I/O I1Z,OZ3 29 D13 I/O I1Z,OZ3

5 D06 I/O I1Z,OZ3 30 D14 I/O I1Z,OZ3

6 D07 I/O I1Z,OZ3 31 D15 I/O I1Z,OZ3

7 -CE1 I I3U 32 -CE2 I I3U

8 A10 I I1Z 33 -VS1 O Ground

9 -OE I I3U 34 -IORD I I3U

10 A09 I I1Z 35 -IOWR I I3U

11 A08 I I1Z 36 -WE I I3U

12 A07 I I1Z 37 RDY/BSY O OT1

13 VCC – Power 38 VCC – Power

14 A06 I I1Z 39 -CSEL I I2Z

15 A05 I I1Z 40 -VS2 O OPEN

16 A04 I I1Z 41 RESET I I2Z

17 A03 I I1Z 42 -WAIT O OT1

18 A02 I I1Z 43 -INPACK O OT1

19 A01 I I1Z 44 -REG I I3U

20 A00 I I1Z 45 BVD2 I/O I1U,OT1

21 D00 I/O I1Z,OZ3 46 BVD1 I/O I1U,OT1

22 D01 I/O I1Z,OZ3 47 D08 I/O I1Z,OZ3

23 D02 I/O I1Z,OZ3 48 D09 I/O I1Z,OZ3

24 WP O OT3 49 D10 I/O I1Z,OZ3

25 -CD2 O Ground 50 GND – Ground

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 107 108

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Sandisk CompactFlash Extreme III User Manual Page 19