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  3. Microchip — 23AA02M & 23AA04M Serial SRAM Devices

Microchip — 23AA02M & 23AA04M Serial SRAM Devices

 

Microchip

 

Microchip 23AA02M/23AA04M Serial SRAM Devices

With Optional Battery Backup

The 23AA02M and 23AA04M are 2 and 4 Mbit Serial SRAM devices by Microchip. The memory is accessed via a Serial Peripheral Interface (SPI) compatible serial bus. Additionally, these serial SRAM products feature SDI (Serial Dual Interface) and SQI (Serial Quad Interface) which is supported with clock speeds up to 143 MHz. The 23AA02M and 23AA04M both support unlimited reads and writes to the memory array with zero write times.

Microchip’s 23AA02M & 23AA04M are available in standard packages including 8-lead SOIC, PDIP and TSSOP.

Features

  • 256K x 8-bit Organization (23AA02M)
  • 512K x 8-bit Organization (23AA04M)
  • SPI/SDI/SQI Bus modes
  • 143 MHz High Speed Clock Frequency
  • Unlimited Read and Write Cycles
  • Zero Write Time
  • User selectable page size (32 byte or 256 byte)
  • Error Correction Code for High Reliability
  • 8 Lead SOIC, TSSOP and PDIP Packages
  • Temp Range: -40°C to +85°C

Parametrics

Bus Modes SPI, SDI, SQI
Density 2048 Kbits (23AA02M) | 4096 Kbits (23AA04M)
Endurance Unlimited
Max. Clock Freq. 143 MHz
Operating Voltage Max (V) 3.6
Operating Voltage Min (V) 1.7
Page Size (Bytes) 32
Write Protect Scheme None
Write Protected No

 

Microchip — 23AA02M Serial SRAM Device

 

Microchip — 23AA04M Serial SRAM Device