DS1217M-1/2-25 Maxim Integrated, DS1217M-1/2-25 Datasheet

DS1217M-1/2-25

Manufacturer Part Number

DS1217M-1/2-25

Description

NVRAM

Manufacturer

Maxim Integrated

Datasheet

1.DS1217M-12-25.pdf (8 pages)

Specifications of DS1217M-1/2-25

Part # Aliases

90-1217M-512

Current page: 1 of 8
Download datasheet (187Kb)

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.

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

PIN CONFIGURATION

DS1217M

TOP VIEW

PART

TEMP RANGE

0°C to +70°C

PIN-PACKAGE

30 Cartridge

Nonvolatile Read/Write Cartridge

1 of 8

FEATURES



Package Drawing appears at end of data sheet.

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

DS1217M

REV: 111803

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