Nonvolatile Read/Write Cartridge

The DS1217M is a nonvolatile (NV) RAM designed for portable applications requiring a rugged and durable package. The NV Cartridge has memory capacities from 64k x 8 to 512k x 8. The cartridge is accessed in continuous 32kB banks. Bank switching is accomplished under software control by pattern recognition from the address bus. A card edge connector is required for connection to a host system. A standard 30-pin connector can be used for direct mount to a printed circuit board. Alternatively, remote mounting can be accomplished with a ribbon cable terminated with a 28-pin DIP plug. The remote method can be used to retrofit existing systems which have JEDEC 28-pin byte-wide memory sites.

* User-insertable

* Data retention greater than 5 years

* Capacity up to 512k x 8

* Standard bytewide pinout facilitates connection to JEDEC 28-pin DIP via ribbon cable

* Software-controlled banks maintain 32 x 8 JEDEC 28-pin compatibility

* Multiple cartridges can reside on a common bus

* Automatic write protection circuitry safeguards against data loss

* Manual switch unconditionally protects data

* Compact size and shape

* Rugged and durable

* Wide operating temperature range of 0°C to 70°C