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April 2000

M27C322

32 Mbit (2Mb x16) UV EPROM and OTP EPROM

s

5V ± 10% SUPPLY VOLTAGE in READ

OPERATION

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ACCESS TIME: 80ns

s

WORD-WIDE CONFIGURABLE

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32 Mbit MASK ROM REPLACEMENT

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LOW POWER CONSUMPTION

– Active Current 50mA at 5MHz

– Stand-by Current 100µA

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PROGRAMMING VOLTAGE: 12V ± 0.25V

s

PROGRAMMING TIME: 50µs/word

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ELECTRONIC SIGNATURE

– Manufacturer Code: 0020h

– Device Code: 0034h

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.

1

42

1

42

FDIP42W (F)

PDIP42 (P)

Figure 1. Logic Diagram

AI02156

21

A0-A20

GVPP

Q0-Q15

VCC

M27C322

E

VSS

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