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 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 proce
dure.

■ 5V ± 10% SUPPLY VOLTAGE in READ OPERATION
■ ACCESS TIME: 80ns
■ WORD-WIDE CONFIGURABLE
■ 32 Mbit MASK ROM REPLACEMENT
■ LOW POWER CONSUMPTION
– Active Current 50mA at 5MHz
– Stand-by Current 100µA
■ PROGRAMMING VOLTAGE: 12V ± 0.25V
■ PROGRAMMING TIME: 50µs/word
■ ELECTRONIC SIGNATURE
– Manufacturer Code: 0020h
– Device Code: 0034h