27C128 128K (16K x 8) CMOS EPROM IC

The 27C128 designed as  high-performance 128K UV Erasable Electrically Programmable Read Only Memory. The device organized as 16K words by 8 bits (16K bytes). Accessing individual bytes from an address transition or from power-up (chip enable pin going low) accomplished in less than 120 ns. CMOS design and processing enables this part to used in systems where reduced power consumption and high reliability necessary. Meanwhile, a full suite of packages was made available to enable the maximum application freedom. PLCC, SOIC, and TSOP packaging are offered for surface mount applications. For PLCC or SOIC products, tape and reel packaging is also possible. Versions that are UV erasable are also available.

It’s made utilising National’s newest CMOS split gate EPROM technology, allowing it to function at rates as fast as 100 ns access time over the entire operational range. The NM27C128 provides extensive storage capacity for large portions of the operating system and application software in microprocessor-based systems. With a 100ns access time, it can operate at high speeds with high-performance CPUs. Furthermore, the 27C128 provides a single chip solution for 100% firmware-based equipment’s code storage requirements. Frequently utilised software functions were performed fast from EPROM storage, considerably improving system utility. The NM27C128, which is configured in the standard EPROM pinout, makes it simple to upgrade systems that currently use standard EPROMs.