Maxim Integrated DS1217M
The DS1217M is a nonvolatile RAM designed for portable applications requiring a rugged and durable package. The nonvolatile cartridge has memory capacities from 64k x 8 to 512k x 8. The cartridge is accessed in continuous 32k byte banks.GENERAL DESCRIPTION
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 that have JEDEC 28-pin bytewide memory sites. ORDERING INFORMATION PART TEMP RANGE PIN-PACKAGE DS1217M 0°C to +70°C 30 Cartridge PIN CONFIGURATIONFEATURES
● User Insertable● Data Retention Greater than 5 Years
● Capacity to 512k x 8
● Standard Bytewide Pinout Facilitates Connection to JEDEC 28-Pin DIP Through 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
● Operating Temperature Range: 0°C to +70°C TOP VIEW Package Drawing appears at end of data sheet.