M27C322
DESCRIPTION
The M27C322 is a 32 Mbit EPROM offered in the UV range (ultra violet erase). It is ideally suited for microprocessor systems requiring large data or program storage. It is organised as 2 MWords of 16 bit. The pin-out is patible with a 32 Mbit Mask ROM. The FDIP42W (window ceramic frit-seal package) has a transparent lid which allows the user to expose the chip to ultraviolet light to erase the bit pattern. A new pattern can then be written rapidly to the device by following the programming procedure. For applications where the content is programmed only one time and erasure is not required, the M27C322 is offered in PDIP42 package.
21 A0-A20
16 Q0-Q15
E GVPP
AI02156
April 2000
1/13
Figure 2A. DIP Connections
A18 A17 A7 A6 A5 A4 A3 A2 A1 A0 E VSS GVPP Q0 Q8 Q1 Q9 Q2 Q10 Q3 Q11 1 42 2 41 3 40 4 39 5 38 6 37 7 36 35 8 9 34 10 33 M27C322 32 11 31 12 30 13 29 14 28 15 27 16 17 26 18 25 19 24 20 23 22 21
AI02157
Table 1. Signal Names
A0-A20...
