DS1217M Просмотр технического описания (PDF) - Maxim Integrated

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DS1217M

Nonvolatile Read/Write Cartridge

Maxim Integrated 

DS1217M

Nonvolatile Read/Write Cartridge

www.maxim-ic.com

GENERAL DESCRIPTION

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. 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 CONFIGURATION

FEATURES

 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.

Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device

may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata.

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REV: 111803

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