DS1225AD
Info: : PRODUCTION
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DS1225AD

64k Nonvolatile SRAM

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 8
1ku List Price Starting From $15.24
Features
  • 10 years minimum data retention in the absence of external power
  • Data is automatically protected during power loss
  • Directly replaces 8k x 8 volatile static RAM or EEPROM
  • Unlimited write cycles
  • Low-power CMOS
  • JEDEC standard 28-pin DIP package
  • Read and write access times of 70ns
  • Lithium energy source is electrically disconnected to retain freshness until power is applied for the first time
  • Full ±10% VCC operating range (DS1225AD)
  • Optional ±5% VCC operating range (DS1225AB)
  • Optional industrial temperature range of -40°C to +85°C, designated IND
Additional Details
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The DS1225AB and DS1225AD are 65,536-bit, fully static, nonvolatile (NV) SRAMs organized as 8192 words by 8 bits. Each NV SRAM has a self-contained lithium energy source and control circuitry which constantly monitors VCC for an out-of-tolerance condition. When such a condition occurs, the lithium energy source is automatically switched on and write protection is unconditionally enabled to prevent data corruption. The NV SRAMs can be used in place of existing 8k x 8 SRAMs directly conforming to the popular bytewide 28-pin DIP standard. The devices also match the pinout of the 2764 EPROM and the 2864 EEPROM, allowing direct substitution while enhancing performance. There is no limit on the number of write cycles that can be executed and no additional support circuitry is required for microprocessor interfacing.

Part Models 8
1ku List Price Starting From $15.24

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
DS1225AD-150+
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DS1225AD-150IND+
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DS1225AD-170+
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DS1225AD-200+
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DS1225AD-200IND+
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DS1225AD-70+
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DS1225AD-70IND+
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DS1225AD-85+
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Part Models

Product Lifecycle

PCN

Sep 29, 2015

- 1479K

ASSEMBLY

DS1225AD-150+

PRODUCTION

DS1225AD-150IND+

PRODUCTION

DS1225AD-170+

PRODUCTION

DS1225AD-200+

PRODUCTION

DS1225AD-200IND+

PRODUCTION

DS1225AD-70+

PRODUCTION

DS1225AD-70IND+

PRODUCTION

DS1225AD-85+

PRODUCTION

Filter by Model

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Reset Filters

Part Models

Product Lifecycle

PCN

Sep 29, 2015

- 1479K

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ASSEMBLY

DS1225AD-150+

PRODUCTION

DS1225AD-150IND+

PRODUCTION

DS1225AD-170+

PRODUCTION

DS1225AD-200+

PRODUCTION

DS1225AD-200IND+

PRODUCTION

DS1225AD-70+

PRODUCTION

DS1225AD-70IND+

PRODUCTION

DS1225AD-85+

PRODUCTION

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Software & Part Ecosystem

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