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M27W202 - 2 Mbit 128Kb x16 Low Voltage UV EPROM and OTP EPROM

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General Description

The M27W202 is a low voltage 2 Mbit EPROM offered in the two range UV (ultra violet erase) and OTP (one time programmable).

It is ideally suited for microprocessor systems requiring large data or program storage and is organised as 131,072 by 16 bits.

The M27W202 operates in the read mode with a supply voltage as low as 2.7V at –40 to 85°C temperature range.

Overview

M27W202 2 Mbit (128Kb x16) Low Voltage UV EPROM and OTP EPROM s 2.7V to 3.6V SUPPLY VOLTAGE in READ OPERATION ACCESS TIME: – 80ns at VCC = 3.0V to 3.6V – 100ns at VCC = 2.7V to 3.6V 40 40 s s LOW POWER CONSUMPTION: – Active Current 20mA at 5MHz – Standby Current 15µA 1 1 FDIP40W (F) PDIP40 (B) s s s PIN COMPATIBLE with M27C202 PROGRAMMING TIME: 100µs/word HIGH RELIABILITY CMOS TECHNOLOGY – 2,000V ESD Protection – 200mA Latchup Protection Immunity PLCC44 (K) s ELECTRONIC SIGNATURE – Manufacturer Code: 0020h – Device Code: 001Ch 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 G should be made a common connection to all devices in the array and connected to the READ line from the system control bus. This en.

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