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27C322 Datasheet M27C322

Manufacturer: STMicroelectronics

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General 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.

Overview

M27C322 32 Mbit (2Mb x16) UV EPROM and OTP EPROM s 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 1 42 42 s s s s – Stand-by Current 100µA s s s 1 PROGRAMMING VOLTAGE: 12V ± 0.25V PROGRAMMING TIME: 50µs/word ELECTRONIC SIGNATURE – Manufacturer Code: 0020h – Device Code: 0034h FDIP42W (F) PDIP42 (P) Figure 1.

Key Features

  • a 2 line control function which accommodates the use of multiple memory connection. The two line control function allows: a. the lowest possible memory power dissipation, b. complete assurance that output bus contention will not occur. For the most efficient use of these two control lines, E should be decoded and used as the primary device selecting function, while GVPP should be made a common connection to all devices in the array and connected to the READ line from the system control bus. This.

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