Infineon Technologies FM24V01A-G

Overview

FM24V01A-G from Infineon Technologies (formerly Cypress) is a 128-Kbit (16K × 8) serial I²C ferroelectric RAM (F-RAM) providing nonvolatile data storage with zero write latency, 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 serves as a hardware-compatible replacement for serial EEPROM in real-time logging and industrial control systems.

For engineers reviewing the FM24V01A-G datasheet, FM24V01A-G pinout, FM24V01A-G application, or FM24V01A-G equivalent, key selection criteria include its NoDelay™ write capability, I²C bus speed support up to 3.4 MHz (Hs-mode), Device ID register (Manufacturer ID + Product ID), low active current (175 µA @ 100 kHz), and 8-pin SOIC package compatibility with legacy EEPROM footprints.

Technical Context

The FM24V01A-G implements a two-wire I²C interface with full support for Standard-mode (100 kHz), Fast-mode (400 kHz), and High-speed mode (3.4 MHz) - though it does not meet NXP's Fm+ or Hs-mode V_HYST specifications. Its slave address uses fixed 4-bit device ID (1010b) plus 3-bit A0–A2 hardware-selectable address bits, enabling up to eight devices on one bus.

Internally, the 16K × 8 memory array is accessed via 14-bit addressing (upper 2 bits "don't care"), with no internal write cycle overhead: each byte writes at bus speed without polling. The Device ID register provides read-only Manufacturer ID (0x01) and Product ID (0x09), verified per datasheet Rev. *K.

Key Specifications

Pinout & Package

FM24V01A-G is housed in an 8-pin Small Outline Integrated Circuit (SOIC) package with standard 1.27 mm pitch and RoHS-compliant finish. Pin functions are electrically validated per Cypress/Infineon datasheet Rev. *K (2018).

Key Features

Applications

Equivalent & Alternatives

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

Compared with AT24C128-10PU-2.7 and MB85RC128, FM24V01A-G uniquely combines guaranteed 3.4 MHz I²C support, integrated Device ID, and industrial-temp-rated 2.0–3.6 V operation - making it optimal for high-throughput, safety-critical, and firmware-validated designs.

Availability

FM24V01A-G is available at Aetrix Electronics and suitable for industrial data loggers, smart metering systems, and automotive body control modules requiring stable component supply, long-term lifecycle assurance, and drop-in EEPROM replacement capability.

Supply support for FM24V01A-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 global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive microcontrollers, and memory solutions.

The FM24V01A-G belongs to Infineon's F-RAM product line - engineered specifically for applications demanding extreme write endurance, deterministic latency, and seamless EEPROM interoperability without firmware redesign.

FAQ

Is FM24V01A-G pin-compatible with standard 128-Kbit I²C EEPROMs like AT24C128?

Yes, FM24V01A-G uses an industry-standard 8-pin SOIC package with identical pinout (A0–A2, SDA, SCL, WP, VDD, VSS) and I²C command structure as AT24C128. No PCB layout changes or firmware modifications are needed for drop-in replacement - only verify VDD range (2.0–3.6 V vs. EEPROM's typical 2.7–5.5 V) and disable any EEPROM-specific polling loops.

Does FM24V01A-G require special I²C bus timing or pull-up resistor values?

No special timing is required: FM24V01A-G fully supports standard I²C 100 kHz and 400 kHz modes with conventional pull-up resistors (typically 2.2–10 kΩ). For 3.4 MHz Hs-mode, a master code (00001XXXb) must be sent first, and bus capacitance must remain ≤400 pF - but standard 2.2 kΩ pull-ups and PCB routing suffice for most industrial implementations.

How is data retention validated for 151 years at +85 °C?

Data retention is extrapolated per JEDEC JESD22-A117 using accelerated high-temperature testing (HTOL) at 125 °C and 85 °C over >1,000 hours, combined with Arrhenius modeling. The 151-year figure reflects worst-case statistical projection at +85 °C with 95% confidence - documented in Section 13 of datasheet Rev. *K and confirmed by Infineon reliability reports.

Can the WP pin be left unconnected, or must it be actively driven?

WP is internally pulled down, so leaving it unconnected defaults to write-enable mode. However, for production robustness, it must be explicitly tied to VSS (write enabled) or VDD (write protected) - floating WP risks noise-induced spurious protection activation in noisy industrial environments, potentially blocking critical firmware updates or calibration writes.