FM24V01A-GTR

Updated: 2026-09-12

Overview

The FM24V01A-GTR is a 1 Kbit serial F-RAM (Ferroelectric RAM) memory device manufactured by Cypress Semiconductor (now Infineon Technologies). It combines the benefits of non-volatile storage with RAM-like performance, offering high-speed writes (no delay) and virtually unlimited endurance. Designed for mission-critical applications, it operates at 1.7V–3.6V and supports the I2C protocol, making it compatible with microcontrollers and embedded systems. Unlike traditional EEPROM or flash memory, F-RAM eliminates write latency and wear-out concerns, making it ideal for applications requiring frequent data updates, such as automotive event recorders or industrial sensor logging. The device is housed in an 8-pin SOIC package, suitable for space-constrained designs.

Structure and Working Principle

The FM24V01A-GTR utilizes ferroelectric technology to store data via polarization of crystals, which retains information without power. Its internal architecture includes a memory array, I2C interface logic, and charge pumps for voltage stabilization. The I2C bus supports standard (100 kHz) and fast (400 kHz) modes, allowing flexible integration with host systems. Data writes occur at bus speed (no page buffer delays), and each byte can endure up to 10^14 cycles—far exceeding EEPROM limits. The device also features a software write-protect function (via I2C commands) to prevent accidental data corruption. Unlike flash memory, it requires no pre-erasure, simplifying firmware design.

Key Features

1. **High Endurance**: Withstands 100 trillion read/write cycles per byte, ensuring reliability in frequent-update scenarios like black box recorders. 2. **Low Power**: Active current of 100 µA (typical) and standby current below 10 µA, ideal for battery-powered devices. 3. **Fast Writes**: Data is written at I2C bus speed (400 kHz max), with no write delays or block-erase overhead. 4. **Wide Voltage Range**: Operates from 1.7V to 3.6V, compatible with both 3.3V and lower-voltage MCUs. 5. **Industrial Robustness**: Rated for -40°C to +85°C, with ESD protection up to 2 kV (HBM).

Application Areas

1. **Automotive**: Used in event data recorders (EDRs), tire pressure monitoring systems (TPMS), and infotainment settings storage due to its resilience to extreme temperatures. 2. **Industrial**: Deployed in PLCs, sensor loggers, and factory automation equipment where real-time data preservation is critical. 3. **Metering**: Ideal for electricity/gas meters to log consumption data without wear concerns. 4. **Medical**: Ensures reliable storage in portable diagnostic devices where power interruptions may occur.

Maintenance and Precautions

1. **ESD Handling**: Use grounded wrist straps and anti-static mats during installation to prevent electrostatic damage. 2. **Voltage Limits**: Avoid exceeding the 3.6V maximum supply voltage; decoupling capacitors (0.1 µF) are recommended near the VCC pin. 3. **Signal Integrity**: Keep I2C trace lengths short to minimize noise; add pull-up resistors (typically 4.7 kΩ) on SDA/SCL lines. 4. **Soldering**: Follow JEDEC J-STD-020 guidelines for reflow profiles (peak temperature 260°C for lead-free).

B2B Procurement Guide

1. **Volumes**: Pricing tiers vary; expect discounts for orders above 1,000 units. Sample kits are available from distributors like Digi-Key or Mouser. 2. **Alternatives**: Compare with similar F-RAMs (e.g., FM25V01A) or EEPROMs (e.g., AT24C01C) based on endurance needs. 3. **Lead Time**: Typically 6–8 weeks for large batches; check Infineon’s allocation status for shortages. 4. **Certifications**: Ensure RoHS 3.0 and AEC-Q100 (automotive-grade) compliance if required for your application.