4 Mbit (512Kb x 8) Low Voltage UV EPROM and OTP EPROM

Features ■ 2.7V to 3.6V Supply Voltage in Read Operation ■ Access Time: – 70 ns at VCC = 3.0V to 3.6V – 80 ns at VCC = 2.7V to 3.6V ■ Pin Compatible with M27C4001 ■ Low Power Consumption: – 15 µA Max. Standby Current – 15 mA Max. Active Current at 5 MHz ■ Programming Time 100 µs/byte ■ H

4 Mbit 512Kb x 8 Low Voltage UV EPROM and OTP EPROM

Summary description The M27W401 is a low voltage 4 Mbit EPROM offered in the two ranges 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 524,288 by 8 bits. The M27W401 operates