87C257 Datasheet (STMicroelectronics) - ADDRESS LATCHED 256K 32K x 8 UV EPROM and OTP EPROM

87C257, ADDRESS LATCHED 256K 32K x 8 UV EPROM and OTP EPROM

The M87C257 is a high speed 262,144 bit UV erasable and electrically programmable EPROM.

The M87C257 incorporates latches for all address inputs to minimize chip count, reduce cost, and simplify the design of multiplexed bus systems.

The Window Ceramic Frit-Seal Dual-in-Line package has a transparen

87C257 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