Infineon Technologies FM24V10-G

Overview

FM24V10-G from Infineon Technologies (formerly Cypress) is a 1-Mbit serial I²C ferroelectric RAM (F-RAM), logically organized as 128K × 8, operating at 2.0–3.6 V over –40 °C to +85 °C, with 3.4-MHz interface speed, 10¹⁴ write endurance, and NoDelay™ immediate writes-used in industrial data loggers for high-frequency timestamped sensor storage.

For engineers reviewing the FM24V10-G datasheet, FM24V10-G pinout, FM24V10-G application, or FM24V10-G equivalent, key selection criteria include I²C bus compatibility, zero-write-latency operation, 151-year data retention, industrial temperature support, and hardware drop-in replacement capability for legacy serial EEPROMs.

Technical Context

The FM24V10-G implements a true nonvolatile memory core using lead zirconate titanate (PZT) ferroelectric capacitors, enabling RAM-like random access with EEPROM-level persistence. Its I²C slave interface supports standard-mode (100 kHz), fast-mode (400 kHz), and high-speed mode (3.4 MHz), with full backward timing compatibility.

It uses a 17-bit internal address space (A16–A0), where A16 serves as page select bit, enabling seamless 64KB-page addressing across the 128KB array. Write protection is controlled via dedicated WP pin, and device selection uses A2/A1 pins for up to four devices on one bus-no external address decoding logic required.

Key Specifications

Pinout & Package

FM24V10-G is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package, 150 mil width, RoHS-compliant, with standard JEDEC MS-012AC footprint and thermal pad not present.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AT24C1024-SSHD-T, FM24V10-G delivers 100,000× higher endurance and eliminates write latency; versus MB85RC1MT, it extends low-voltage operation down to 2.0 V-critical for coin-cell and energy-harvesting designs.

Availability

FM24V10-G is available at Aetrix Electronics and suitable for industrial data loggers, smart energy meters, PLC I/O modules, and medical sensor hubs requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.

Supply support for FM24V10-G 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

Infineon Technologies is a German semiconductor leader specializing in power management, sensing, connectivity, and security solutions for industrial, automotive, and IoT applications.

The FM24V10-G belongs to Infineon's F-RAM portfolio-designed specifically for applications demanding frequent, low-latency, and highly reliable nonvolatile data capture without EEPROM limitations.

FAQ

Is FM24V10-G pin-compatible with standard I²C EEPROMs like the 24LC1025?

Yes-FM24V10-G uses the same 8-pin SOIC package and identical I²C pinout (VDD, VSS, SDA, SCL, WP, A1, A2, NC) as common 1-Mbit serial EEPROMs. No PCB redesign is needed; only firmware update may be required to remove EEPROM polling routines.

Does FM24V10-G require external circuitry for I²C bus termination?

Yes-it requires external pull-up resistors on SDA and SCL lines, sized per I²C bus capacitance and target speed. Typical values are 2.2 kΩ for 400 kHz and 1 kΩ for 3.4 MHz operation with ≤200 pF total bus capacitance.

Can FM24V10-G retain data during brown-out conditions below 2.0 V?

No-data retention is only guaranteed when VDD remains ≥2.0 V. Below this threshold, the device enters undefined state. For brown-out resilience, pair with a supervisor IC (e.g., TPS3809) to trigger controlled shutdown before VDD drops below 2.0 V.

What is the function of the NC pin (Pin 5) on FM24V10-G?

Pin 5 is a true no-connect-unbonded and electrically isolated from the die. It may be left floating or tied to ground for mechanical stability, but must never be driven high or used as a signal path, as it has no internal connection.