The GR12883 is a 131072 word by 8 bits (128K x 8) non-volatile CMOS Static Ram, fabricated from advanced silicon gate CMOS technology and a high reliability lithium power cell.
GR3281 is a 32768 word by 8 bits (32K x 8) non-volatile CMOS Static Ram, fabricated from advanced silicon gate CMOS technology and a high reliability lithium power cell.
This document describes the timing characteristics of GR881-H (8K x 8) non-volatile RAM, including read and write cycle times, address, enable, and output-related parameters.
The GR881 is a non-volatile RAM of 8K×8 released by Greenwich Instruments Ltd. It has good storage characteristics and can be widely used in program development, data collection, process control, automation and robotics, etc.