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32 PCM-4894 User Manual
DiskOnChip socket (U20)
The DiskOnChip 2000 family of products provides a single chip
solid-state flash disk in a standard 32-pin DIP package. The
DiskOnChip 2000 is a solid-state disk with no moving parts,
resulting in a significant reduction in power consumption and an
increase in reliability. The DiskOnChip is a small, plug and play
Flash disk. It is easy to use and saves integration overhead.
The DiskOnChip 2000 family of products is available in capaci-
ties ranging from 2MB up to 72 MB, unformatted. In order to
manage the disk, the DiskOnChip 2000 includes the TrueFFS, M-
Systems' Flash File System proprietary software. The DiskOn-
Chip 2000 package is pin-to-pin compatible with standard 32-pin
EPROM devices.
Figure1-MD2200 Pin-out Note 1: Pins A13 through A16 are not
used by the MD2200. They are kept for
socket backward compatibility with ED
1100 (DiskOnChip 1000)
Note 2: Pins 1 and 30 are not used by
MD2200
pin
Name
Descr iption
Pin N umber
Dir ection
Note
A0-A12
Addr ess bus
4- 12,23,25-27
Inputs
A13-A16
Addr ess bus
2,3,28,29
Inputs
1
D0- D7
Data bus
13- 15,17-21
I/O
CE/
C hip Enable
22
Input
OE/
Output Enable
24
Input
WE/
Wr ite Enable
31
Input
NC
Not connected
1.30
2
VCC
Pow er
32
GND
Ground
16
OE /
Summary of Contents for PCM-4894
Page 14: ...8 PCM 4894 User Manual...
Page 56: ...50 PCM 4894 User Manual...
Page 72: ...A 66 PCM 4894 User Manual...
Page 77: ...Appendix C Optional Extras C 71 C Optional Extras APPENDIX...