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DESCRIPTION

The M27V405 is a low voltage 4 Mbit EPROM offered in the OTP range (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 M27V405 operates in the read mode with a supply voltage as low as 3V. The decrease in operating power allows either a reduction of the size of the battery or an increase in the time between battery recharges.

■ LOW VOLTAGE READ OPERATION: 3V to 3.6V

■ FAST ACCESS TIME: 120ns

■ LOW POWER CONSUMPTION:

– Active Current 15mA at 5MHz

– Standby Current 20μA

■ PROGRAMMING VOLTAGE: 12.75V ± 0.25V

■ PROGRAMMING TIMES:

– Typical 48sec. (PRESTO II Algorithm)

– Typical 27sec. (On-Board Programming)

■ PIN COMPATIBLE with the 4 Mbit, Single Voltage Flash Memory

■ ELECTRONIC SIGNATURE

– Manufacturer Code: 20h

– Device Code: B4