GR12883 non-volatile RAM

1M (128k x 8)
lithium battery backed memory device

Greenwich Instruments designed and manufactured 1M non-volatile memory module

GR12883 non-volatile RAM

Image is for illustrative purposes only.


GR12883 description

The GR12883 is a 131072 word by 8 bits (128k x 8) non-volatile static RAM fabricated from advanced silicon gate CMOS technology and a high reliability lithium power cell.

The 32W dil pinout of the GR281 conforms to the JEDEC standards and is fully compatible with normal static RAM

The power down circuit is fully automatic and is referenced at 4.5V. At this point the GR12883 is write protected by an internal inhibit function for data protection and the memory contents are retained by the lithium power source.

Power down is very fast, this being essential for data integrity, taking a maximum 15 microseconds to power down from 5V to 0V. This is much faster than any system power failure conditions; therefore there are no special conditions required when installing the GR12883

The GR12883 can, without external power, retain data almost indefinitely; the limiting factor being the shelf life of the lithium power cell, typically 10 years

Application

When powered down the GR12883 is transportable and data can be moved from system to system. Being pin compatible with the 27C1001 EPROM it is ideal for program development, data collection in data loggers, program changes in process control, automation and robotics and user defineable look-up tables etc.

GR12883 datasheet

For further information please email Greenwich Instruments Ltd.


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