M27C64 Datasheet - STMicroelectronics

DESCRIPTION
The M27C64A is a 64Kbit EPROM offered in the two ranges UV (ultra violet erase) and OTP (one
time programmable). It is ideally suited for microprocessor systems requiring large programs and is
organized as 8,192 by 8 bits. The FDIP28W (window ceramic frit-seal package) has transparent lid which allows the user to expose the chip to ultraviolet light to erase the bit pattern. A new pattern can then be written to the device by following the programming procedure. For applications where the content is programmed only on time and erasure is not required, the M27C64A is offered in PLCC32 package.

5V ±10% SUPPLY VOLTAGE in READ OPERATION
FAST ACCESS TIME: 150ns
LOW POWER “CMOS” CONSUMPTION:
– Active Current 30mA
– Standby Current 100µA
PROGRAMMING VOLTAGE: 12.5V ±0.25V
HIGH SPEED PROGRAMMING(less than 1 minute)
ELECTRONIC SIGNATURE
– Manufacturer Code: 9Bh
– Device Code: 08h