Installation guide

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

Name

Description Pin Number Direction Note

A0-A12 Address bus 4-12,23,25-27 Inputs

A13-A16 Address bus 2,3,28,29 Inputs 1

D0-D7 Data bus 13-15,17-21 I/O

CE/ Chip Enable 22 Input

OE/ Output Enable 24 Input

WE/ Write Enable 31 Input

NC Not connected 1.30 2

VCC Power 32

GND Ground 16

OE /