Infineon Technologies FM24V02-GTR

Overview

FM24V02-GTR from Cypress Semiconductor is a 256-Kbit (32 K × 8) serial I²C ferroelectric RAM (F-RAM) nonvolatile memory IC, designed for high-frequency write-intensive data logging and industrial control systems. It delivers NoDelay™ writes at bus speed, 10¹⁴ read/write endurance, and 151-year data retention at +85 °C, operating from 2.0 V to 3.6 V in an 8-pin SOIC package.

For engineers reviewing the FM24V02-GTR datasheet, FM24V02-GTR pinout, FM24V02-GTR application, or FM24V02-GTR equivalent, key selection criteria include write-cycle latency, I²C timing compatibility (100 kHz/400 kHz/3.4 MHz), WP-controlled hardware write protection, and drop-in replacement capability versus serial EEPROM in legacy microcontroller-based systems.

Technical Context

The FM24V02-GTR implements a true nonvolatile RAM architecture using lead zirconate titanate (PZT) ferroelectric capacitors, enabling byte-level writes without erase cycles or write delays. Its I²C interface supports standard-mode (100 kHz), fast-mode (400 kHz), and high-speed mode (3.4 MHz) with full backward timing compatibility.

Internally, it uses a 15-bit address latch with automatic increment and wraparound (0x0000 → 0x7FFF → 0x0000), supports random and sequential reads/writes of up to 32 K bytes per transaction, and incorporates a fixed 0xA0–0xA7 slave address range determined by A2–A0 pins with R/W bit.

Key Specifications

Pinout & Package

FM24V02-GTR is housed in an industry-standard 8-pin Small Outline Integrated Circuit (SOIC) package with 1.27 mm pitch, RoHS-compliant, and surface-mount compatible.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AT24C256C-SSHL-T, FM24V02-GTR eliminates write latency and extends lifetime by 100 million×; compared with MB85RC256V, it offers identical performance but with Cypress's industrial qualification and legacy design support ecosystem.

Availability

FM24V02-GTR is available at Aetrix Electronics and suitable for industrial data loggers, smart metering systems, PLC I/O modules, and medical diagnostic devices requiring stable component supply, long-term lifecycle assurance, and guaranteed RoHS compliance.

Supply support for FM24V02-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) is a U.S.-based semiconductor company specializing in microcontrollers, memory, and connectivity solutions for industrial, automotive, and consumer applications.

The FM24V02-GTR belongs to Cypress's F-RAM product line, engineered specifically to replace serial EEPROM in write-critical, low-power, and high-reliability embedded systems where data integrity and endurance are non-negotiable.

FAQ

What is the maximum I²C clock frequency supported by FM24V02-GTR?

The FM24V02-GTR supports up to 3.4 MHz in high-speed mode (Hs-mode), activated by sending a master code (00001XXXb). It remains fully compatible with standard 100 kHz and fast-mode 400 kHz I²C controllers without configuration changes, making it suitable for both legacy and next-generation designs.

Does FM24V02-GTR require external circuitry for write protection?

No - FM24V02-GTR includes a dedicated WP (Write Protect) pin that disables all write operations when driven high to VDD. The pin is internally pulled down, so write protection is disabled by default unless externally asserted. No external logic or firmware configuration is needed for hardware-level security.

How does FM24V02-GTR handle power loss during a write operation?

Because FM24V02-GTR performs NoDelay™ writes at bus speed, each byte is atomically written upon ACK receipt - there is no intermediate state or partial write window. If VDD drops below 2.0 V mid-transaction, the last successfully ACK'd byte remains intact; no corruption or rollback is required, unlike EEPROM which may leave incomplete pages.

Can FM24V02-GTR be used as a direct replacement for AT24C256 without firmware changes?

Yes - FM24V02-GTR uses the same 8-pin SOIC footprint, identical I²C slave address range (0xA0–0xA7), and supports legacy 100 kHz/400 kHz timings. Firmware requiring EEPROM-style polling or page-write delays will function correctly but can be optimized to remove wait loops, gaining immediate performance and reliability benefits.