Infineon Technologies FM24V01-GTR

Overview

FM24V01-GTR from Cypress Semiconductor is a 128-Kbit (16 K × 8) serial I²C ferroelectric RAM (F-RAM) with NoDelay™ write capability, 10¹⁴ read/write endurance, and 151-year data retention at +85 °C. It operates from 2.0 V to 3.6 V across –40 °C to +85 °C and replaces I²C EEPROM in high-write-frequency applications such as industrial data logging and real-time metering.

For engineers reviewing the FM24V01-GTR datasheet, FM24V01-GTR pinout, FM24V01-GTR application, or FM24V01-GTR equivalent, key selection criteria include bus-speed write performance, zero-write-delay operation, I²C timing compatibility (100 kHz/400 kHz/3.4 MHz), WP-controlled hardware write protection, and SOIC-8 footprint compatibility with legacy EEPROMs.

Technical Context

The FM24V01-GTR implements a true nonvolatile RAM architecture using lead zirconate titanate (PZT) ferroelectric capacitors, enabling byte-level writes without erase cycles or write latency. Its I²C interface supports standard-mode (100 kHz), fast-mode (400 kHz), and high-speed mode (3.4 MHz) with full backward timing compatibility.

Addressing uses a 14-bit internal latch with automatic increment; the upper 2 address bits are don't-care. Device ID includes manufacturer ID (0x01) and product ID (0x08), accessible via dedicated I²C command. Write protection is controlled by the WP pin, which defaults low and enables full memory access when grounded.

Key Specifications

Pinout & Package

FM24V01-GTR is housed in an 8-pin Small Outline Integrated Circuit (SOIC) package with standard 1.27 mm pitch and 5.3 mm body width. Pin 1 is marked with a notch or dot; top-side marking includes "FM24V01" and date code.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar serial nonvolatile memory applications.

Compared with AT24C128C-SSHL-T and MB85RC128A, the FM24V01-GTR uniquely delivers NoDelay™ writes, integrated Device ID, and guaranteed 151-year retention at +85 °C - making it optimal for mission-critical, high-write industrial systems where firmware simplicity and long-term reliability are non-negotiable.

Availability

FM24V01-GTR is available at Aetrix Electronics and suitable for industrial data loggers, smart electricity meters, PLC I/O modules, and medical infusion pumps requiring stable component supply, long-lifecycle support, and RoHS-compliant sourcing.

Supply support for FM24V01-GTR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Cypress Semiconductor (now part of Infineon Technologies) designs high-reliability nonvolatile memory and microcontroller solutions for industrial, automotive, and IoT applications.

The FM24V01-GTR belongs to Cypress's F-RAM product line, engineered specifically to replace EEPROM in applications demanding rapid, frequent, and deterministic nonvolatile writes without endurance limitations.

FAQ

Is FM24V01-GTR pin-compatible with standard 8-pin SOIC EEPROMs like AT24C128?

Yes - FM24V01-GTR uses identical 8-pin SOIC packaging and I²C pin assignments (A0–A2, SDA, SCL, WP, VSS, VDD). No PCB redesign is needed; only firmware updates may be required to disable EEPROM polling loops due to NoDelay™ writes.

Does FM24V01-GTR require external high-voltage circuitry for writes like EEPROM?

No - the ferroelectric memory cell operates at core VDD (2.0–3.6 V) without charge pumps or boosted voltages. This eliminates EEPROM's high-voltage generator, reducing EMI, power spikes, and silicon area - critical for low-noise analog systems.

How does the WP pin function, and what happens when it's left floating?

The WP pin is internally pulled down; leaving it unconnected defaults to write-enabled mode. Tying WP to VDD activates hardware write protection across the full 16-Kbyte address space. No software lock bits or command sequences are involved - protection is purely physical and immediate.

Can FM24V01-GTR operate reliably at 3.4 MHz I²C speed in noisy industrial environments?

Yes - its SDA and SCL inputs feature Schmitt triggers and slew-rate control, validated per I²C specification for high-speed mode. Layout best practices (short traces, ground plane, 2.2 kΩ pull-ups) ensure robust 3.4 MHz operation even with ±2 kV ESD transients per IEC 61000-4-2.