M27C322
32 Mbit (2Mb x16) UV EPROM and OTP EPROM
s
5V 鹵 10% SUPPLY VOLTAGE in READ
OPERATION
ACCESS TIME: 80ns
WORD-WIDE CONFIGURABLE
32 Mbit MASK ROM REPLACEMENT
LOW POWER CONSUMPTION
鈥?Active Current 50mA at 5MHz
1
42
42
s
s
s
s
鈥?Stand-by Current 100碌A(chǔ)
s
s
s
1
PROGRAMMING VOLTAGE: 12V 鹵 0.25V
PROGRAMMING TIME: 50碌s/word
ELECTRONIC SIGNATURE
鈥?Manufacturer Code: 0020h
鈥?Device Code: 0034h
FDIP42W (F)
PDIP42 (P)
Figure 1. Logic Diagram
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 compatible with a 32 Mbit
Mask ROM.
The FDIP42W (window ceramic frit-seal package)
has a transparent lid which allows the user to ex-
pose the chip to ultraviolet light to erase the bit pat-
tern. A new pattern can then be written rapidly to
the device by following the programming proce-
dure.
For applications where the content is programmed
only one time and erasure is not required, the
M27C322 is offered in PDIP42 package.
VCC
21
A0-A20
16
Q0-Q15
E
GVPP
M27C322
VSS
AI02156
April 2000
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