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FM25L16B-DGTR

16Kbit SPI F-RAM, 2Kx8, 20MHz, 10^14 endurance, NoDelay writes, 8-TDFN, EEPROM replacement

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Manufacturer Part：

FM25L16B-DGTR

Package：

8-TDFN (4x4.5mm)

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Description

Product Overview

The FM25L16B-DGTR from Infineon (formerly Ramtron/Cypress) is a 16Kbit (2K x 8) serial F-RAM memory with SPI interface operating up to 20MHz. Offering 100 trillion (10^14) read/write cycles and 151-year data retention at 65°C, it provides NoDelay writes and serves as a drop-in EEPROM replacement. Housed in 8-TDFN (4×4.5mm), it operates from 2.7V to 3.6V.

Key Specifications

Memory Type F-RAM (Ferroelectric RAM)
Density 16 Kbit
Organization 2K x 8
Interface SPI (Mode 0 & 3)
Max Clock Frequency 20 MHz
Supply Voltage 2.7V ~ 3.6V
Write Endurance 10^14 (100 trillion) read/write cycles
Data Retention 151 years @ 65°C
Active Current 200 μA @ 1MHz
Standby Current 3 μA (typical)
Operating Temperature -40°C ~ 85°C
Package 8-TDFN (4×4.5mm)
Part Status Active

Features

  • 100 trillion (10^14) read/write cycles — 100 million times more than EEPROM
  • 151-year data retention at 65°C
  • NoDelay writes — no write delay or polling needed
  • 20MHz SPI interface compatible with SPI Mode 0 and Mode 3
  • Hardware and software write protection with block protect
  • Drop-in replacement for serial EEPROM
  • Low power: 200μA active, 3μA standby
  • RoHS compliant, halogen-free

Applications

  • Data logging and frequent-write applications
  • Industrial control and automation
  • Metering and smart grid
  • Automotive systems (non-critical)
  • Configuration storage in networking equipment

The FM25L16B-DGTR from Infineon is a 16-kilobit nonvolatile F-RAM (Ferroelectric RAM) memory organized as 2,048 x 8 bits. Unlike EEPROM, F-RAM performs writes at bus speed with no write delay, eliminating the need for data polling between write operations. The device supports 100 trillion (10^14) read/write cycles, which is 100 million times more than typical EEPROM, making it ideal for applications requiring frequent or rapid writes. Data retention is guaranteed for 151 years at 65°C. The SPI interface supports clock frequencies up to 20MHz and is compatible with both SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1). The FM25L16B is a hardware drop-in replacement for serial EEPROM, offering dramatically better write endurance and speed without requiring changes to the SPI bus protocol.

The FM25L16B-DGTR uses ferroelectric capacitor technology to achieve nonvolatile data storage. Each memory cell contains a ferroelectric capacitor whose polarization state represents the stored data bit. Unlike EEPROM which uses floating-gate transistors requiring high-voltage programming and erase cycles, F-RAM writes data by applying a voltage to the ferroelectric capacitor, which switches its polarization state in nanoseconds. This eliminates the need for a charge pump and the associated write delay. The read operation senses the polarization state of the capacitor through a charge-sensing amplifier. Because the read operation is destructive (it flips the polarization), the data is automatically rewritten after each read. The SPI interface handles all command decoding, address latching, and data transfer operations.

Pin Name Type Description
1 /CS I Chip select (active low)
2 SO O Serial data output (MISO)
3 /WP I Write protect (protects status register)
4 VSS GND Ground
5 SI I Serial data input (MOSI)
6 SCK I Serial clock
7 /HOLD I SPI hold (pauses serial communication)
8 VDD PWR Supply voltage (2.7V-3.6V)
  • Data Logging: Frequent sensor data writes in industrial and metering applications without wear concerns
  • Metering: Nonvolatile storage for calibration data and running totals in smart meters
  • Industrial Control: Rapid configuration writes in PLCs and motor controllers
  • Networking: MAC address, serial number, and configuration storage with NoDelay writes
  • Automotive: Non-critical parameter storage with virtually unlimited endurance
Model Manufacturer Key Difference
FM25L16B-GTR Infineon SOIC-8 package variant
FM25L04B-DGTR Infineon 4Kbit version, same pinout
FM25V01-G Infineon 16Kbit, wider voltage (1.5V-5.5V)
MB85RS16PNF-G-JNERE1 Fujitsu 16Kbit F-RAM, SPI, similar specs
AT25LN011 Microchip 1Mbit EEPROM (if endurance is not critical)
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Quality Assurance

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

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