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DS1220AD Datasheet 16k Nonvolatile Sram

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: 19-5580; Rev 10/10 www.maxim-ic.com.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

A0-A10 DQ0-DQ7 - Address Inputs - Data In/Data Out CE - Chip Enable WE - Write Enable OE VCC GND - Output Enable - Power (+5V) - Ground DESCRIPTION The DS1220AB and DS1220AD 16k Nonvolatile SRAMs are 16,384-bit, fully static, nonvolatile SRAMs organized as 2048 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.

Key Features

  • 10 years minimum data retention in the absence of external power.
  • Data is automatically protected during power loss.
  • Directly replaces 2k x 8 volatile static RAM or EEPROM.
  • Unlimited write cycles.
  • Low-power CMOS.
  • JEDEC standard 24-pin DIP package.
  • Read and write access times of 100 ns.
  • Lithium energy source is electrically disconnected to retain freshness until power is applied for the first time.
  • Full ±10% VCC operating range (DS1220AD).
  • Option.

More Datasheets from Maxim Integrated (now Analog Devices)

Part Number Description
DS1220AB 16k Nonvolatile SRAM
DS1220Y 16k Nonvolatile SRAM
DS1225AB 64k Nonvolatile SRAM
DS1225AD 64k Nonvolatile SRAM
DS1225Y 64k Nonvolatile SRAM
DS1210 Nonvolatile Controller
DS1217M Nonvolatile Read/Write Cartridge
DS1218 Nonvolatile Controller
DS1243Y 64K NV SRAM
DS1244 256K NV SRAM

DS1220AD Distributor