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