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FM31256 - 64-Kbit/256-Kbit Integrated Processor Companion

Download the FM31256 datasheet PDF. This datasheet also covers the FM3164 variant, as both devices belong to the same 64-kbit/256-kbit integrated processor companion family and are provided as variant models within a single manufacturer datasheet.

General Description

The FM3164/FM31256 device integrates F-RAM memory with the most commonly needed functions for processor-based systems.

Key Features

  • 64-Kbit/256-Kbit ferroelectric random access memory (F-RAM).
  • Logically organized as 8K × 8 (FM3164)/32K × 8 (FM31256).
  • High-endurance 100 trillion (1014) read/writes.
  • 151-year data retention (See Data Retention and Endurance on page 29).
  • NoDelay™ writes.
  • Advanced high-reliability ferroelectric process.
  • High Integration Device Replaces Multiple Parts.
  • Serial nonvolatile memory.
  • Real time clock (RTC).
  • Low voltage reset.
  • Watchdog timer.
  • E.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (FM3164-CypressSemiconductor.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
FM31256 Integrated Processor Companion Ramtron
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FM31272 (FM31272 - FM31278) 5V Integrated Processor Companion Ramtron
FM31274 (FM31272 - FM31278) 5V Integrated Processor Companion Ramtron
FM31276 (FM31272 - FM31278) 5V Integrated Processor Companion Ramtron

Other Datasheets by Cypress (now Infineon)

Part Number Description
FM31276 64-Kbit/256-Kbit Integrated Processor Companion
FM31278 64-Kbit/256-Kbit Integrated Processor Companion
FM3164 64-Kbit/256-Kbit Integrated Processor Companion
FM31L276 64-Kbit/256-Kbit Integrated Processor Companion
FM31L278 64-Kbit/256-Kbit Integrated Processor Companion

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
FM3164/FM31256 64-Kbit/256-Kbit Integrated Processor Companion with F-RAM 64-Kbit/256-Kbit Integrated Processor Companion with F-RAM Features ■ 64-Kbit/256-Kbit ferroelectric random access memory (F-RAM) ❐ Logically organized as 8K × 8 (FM3164)/32K × 8 (FM31256) ❐ High-endurance 100 trillion (1014) read/writes ❐ 151-year data retention (See Data Retention and Endurance on page 29) ❐ NoDelay™ writes ❐ Advanced high-reliability ferroelectric process ■ High Integration Device Replaces Multiple Parts ❐ Serial nonvolatile memory ❐ Real time clock (RTC) ❐ Low voltage reset ❐ Watchdog timer ❐ Early power-fail warning/NMI ❐ Two 16-bit event counter ❐ Serial number with write-lock for security ■ Real-time Clock/Calendar ❐ Backup current at 2 V: 1.