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FM25e64 - 64Kb Serial Low Energy F-RAM Memory

General Description

The FM25e64 is a low voltage, low energy 64-kilobit nonvolatile memory employing an advanced F-RAM process.

It provides reliable data retention for 36 years while eliminating the complexities, overhead, and system level reliability problems caused by EEPROM and other nonvolatile memories.

Key Features

  • 64K bit Ferroelectric Nonvolatile RAM.
  • Organized as 8,192 x 8 bits.
  • High Endurance 1 Trillion (1012) Read/Writes.
  • 36 Year Data Retention at +75ºC.
  • NoDelay™ Writes.
  • Advanced High-Reliability Ferroelectric Process Fast SPI Interface.
  • Up to 20 MHz Frequency.
  • SPI Mode 0 & 3 (CPOL, CPHA=0,0 & 1,1).
  • Software Write-Protection (BP bits).
  • Hardware Write-Protect (/WP pin) Active-Low RESET Input.
  • Holds Device in Reset State While Power Supply Stabilizes.

📥 Download Datasheet

Datasheet Details

Part number FM25e64
Manufacturer Ramtron International
File Size 711.89 KB
Description 64Kb Serial Low Energy F-RAM Memory
Datasheet download datasheet FM25e64 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Preliminary FM25e64 64Kb Serial Low Energy F-RAM Memory FEATURES 64K bit Ferroelectric Nonvolatile RAM  Organized as 8,192 x 8 bits  High Endurance 1 Trillion (1012) Read/Writes  36 Year Data Retention at +75ºC  NoDelay™ Writes  Advanced High-Reliability Ferroelectric Process Fast SPI Interface  Up to 20 MHz Frequency  SPI Mode 0 & 3 (CPOL, CPHA=0,0 & 1,1)  Software Write-Protection (BP bits)  Hardware Write-Protect (/WP pin) Active-Low RESET Input  Holds Device in Reset State While Power Supply Stabilizes  Reduces Time to First F-RAM Access  Allows Freedom of Power Supply Ramp Rates Low Voltage/ Low Energy Consumption  VDD = 1.8V ±0.1V (-1 version)  VDD = 1.5V +0.15V, -0.1V (-2 version)  20 A (typ.) Active Current at 1 MHz  0.1 A (typ.