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DS1225AD-70+

Nonvolatile SRAM (NVSRAM), 64Kbit, 8K x 8bit, 70ns Read/Write, Parallel, 4.75V to 5.25V, EDIP-28

MAXIM INTEGRATED PRODUCTS DS1225AD-70+
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Manufacturer Part No:
DS1225AD-70+
Order Code:
2798718
Technical Datasheet:
DS1225AD-70+   Datasheet
See all Technical Docs

Product Overview

The DS1225AD-70+ from Maxim Integrated Products is a 64K non-volatile SRAM in 28 pin EDIP package. It is a 65,536bit, fully static, non-volatile SRAM 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 the write protection is unconditionally enabled to prevent data corruption. The NV SRAM can be used in place of existing 8K x 8 SRAMs directly conforming to the popular bytewide 28 pin DIP package. The device matches the pin-out of 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 additional support circuitry is not required for microprocessor interfacing.
  • Supply voltage range from 4.5V to 5.5V
  • Operating temperature range from 0°C to +70°C
  • Data is automatically protected during power loss
  • Directly replaces 8K x 8 volatile static RAM or EEPROM
  • Unlimited write cycles
  • Low power CMOS
  • Read and write access time is 70ns
  • Lithium energy source is disconnected to retain freshness until power is applied for the first time
  • Write protection voltage is 4.37V
  • Operating current is 75mA

Applications

Embedded Design & Development

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Product Information

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64Kbit

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8K x 8bit

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70ns

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70ns

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4.5V

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5.5V

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EDIP

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28Pins

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Parallel

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0°C

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70°C

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-

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-
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Technical Docs (1)

CAD Downloads

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Terms and Conditions

CAD Models - Notice
CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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