Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Memory > Memory

Infineon Technologies FM25V02A-G

Name: FM25V02A-G
Brand: Infineon Technologies
SKU: FM25V02A-G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: FM25V02A-G

Manufacturer:: Infineon Technologies

Category:: Memory

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: FM25V02A-G.pdf

Description:: IC FRAM 256KBIT SPI 40MHZ 8SOIC

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:1,631

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

FM25V02A-G from Infineon Technologies (formerly Cypress) is a 256-Kbit serial SPI F-RAM organized as 32K × 8, delivering true RAM-like write performance with nonvolatile data retention. It supports up to 40-MHz SPI clock, operates from 2.0 V to 3.6 V, endures 10¹⁴ read/write cycles, and retains data for 151 years at +85 °C - ideal for high-frequency data logging in industrial controllers.

For engineers reviewing the FM25V02A-G datasheet, FM25V02A-G pinout, FM25V02A-G application, or FM25V02A-G equivalent, key selection criteria include NoDelay™ write capability, hardware/software write protection (WP pin & status register), SPI Mode 0/3 compatibility, industrial temperature range (–40 °C to +85 °C), and drop-in replacement feasibility for serial EEPROM or flash in real-time systems.

Technical Context

The FM25V02A-G implements ferroelectric memory cells enabling immediate byte-level writes without erase cycles or polling. Its SPI interface operates synchronously with SCK up to 40 MHz, latching inputs on rising edges and driving outputs on falling edges in both Mode 0 (CPOL = 0, CPHA = 0) and Mode 3 (CPOL = 1, CPHA = 1).

Write protection is enforced via dedicated WP pin (hardware lock) and software-configurable status register bits (WEL, BP0–BP2), supporting 1/4-, 1/2-, or full-array block protection. The device includes a read-only Device ID (Manufacturer ID: 0x01, Product ID: 0x22) and enters low-power sleep mode (<8 µA) when CS and HOLD are inactive.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Density	256 Kbit (32,768 × 8), enabling compact storage of firmware parameters or sensor logs without external address latches
SPI Clock Frequency	Up to 40 MHz - supports sub-µs per-byte write latency, eliminating bus idle time during sequential writes
Write Endurance	10¹⁴ cycles - sustains >27,000 writes/sec continuously for 10+ years, far exceeding EEPROM's 10⁶ limit
Data Retention	151 years at +85 °C - ensures unpowered data integrity across product lifecycles in sealed industrial enclosures
Supply Voltage	2.0 V to 3.6 V - compatible with modern 3.3 V microcontrollers and battery-backed systems down to 2.0 V brownout threshold
Operating Temperature	–40 °C to +85 °C - qualified for deployment in motor drives, PLC I/O modules, and outdoor metering equipment
Active Current	2.5 mA at 40 MHz - enables high-throughput logging without thermal derating in space-constrained PCB layouts

Pinout & Package

FM25V02A-G is available in two RoHS-compliant packages: 8-pin SOIC (width 3.9 mm) and 8-pin DFN (3 mm × 3 mm, exposed pad not connected). Both share identical pin functions and electrical behavior.

Pin/Terminal	Circuit Role	Design Meaning
CS	Chip Select input	Active-low enable: pulls device out of standby; falling edge initiates opcode decoding; must be held low for entire SPI transaction
SCK	Serial clock input	Synchronizes all I/O; rising edge samples SI, falling edge drives SO; frequency 0–40 MHz; tolerates clock pauses
SI	Serial input	Receives opcodes, addresses, and write data; sampled on SCK rising edge; must be driven to valid logic level to meet IDD specs
SO	Serial output	Drives read data and status bits; active only during read cycles; tristated when CS high or HOLD low
WP	Write protect input	Hardware lock: when WPEN=1 in status register, LOW on WP blocks Status Register writes - critical for preventing accidental configuration changes
HOLD	Operation suspend input	Pauses ongoing read/write mid-transaction; requires SCK=LOW during transition; enables CPU context switching without data loss
VDD	Power supply	2.0–3.6 V core supply; decoupling capacitor required within 10 mm of pin to suppress switching noise
VSS	Ground	Reference return path; must connect to system ground plane with low-inductance trace to minimize SPI timing jitter

Key Features

Feature	Design Value
NoDelay™ Writes	Zero-latency byte writes: data committed immediately after SI shift-in completes - no polling, no timeout handling, no bus blocking
Ferroelectric Memory Core	10¹⁴ endurance + 151-year retention achieved without charge pumps or floating gates - eliminates wear leveling firmware overhead
Dual SPI Mode Support	Native compatibility with Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1) - interoperable with STM32, PIC, and NXP MCU SPI peripherals without bit-banging
Three-Layer Write Protection	Combines WP pin (hardware), WREN instruction (latch-based), and BP bits (software block lock) - prevents corruption during power glitches or firmware faults
Low-Power Sleep Mode	8 µA quiescent current with CS and HOLD high - extends battery life in portable data recorders and wireless sensor nodes

Applications

Industrial Data Logger

Smart Energy Meter

Use Scenario: Continuous timestamped recording of voltage, current, and temperature samples at 100 Hz in DIN-rail mounted controllers.

IC Role / Device Role / Timing Role: Nonvolatile scratchpad memory storing last-known state and recent 10-minute waveform buffers before safe shutdown.

Use Value: Eliminates risk of data loss during unexpected AC dropout due to instant write capability - no backup capacitors or supercaps needed.

Use Scenario: Tamper-proof storage of billing registers, tariff tables, and cryptographic keys in ANSI C12.22-compliant meters.

IC Role / Device Role / Timing Role: Secure configuration store with hardware WP pin tied to tamper-detection circuitry to freeze registers on enclosure breach.

Use Value: Prevents unauthorized register modification while maintaining 151-year data integrity - meets ANSI C12.19 security lifetime requirements.

PLC I/O Module

Medical Diagnostic Device

Use Scenario: Storing calibration coefficients and fault history logs in modular I/O bases with hot-swap capability.

IC Role / Device Role / Timing Role: Configuration memory accessed during module insertion; withstands 100,000+ hot-plug cycles without degradation.

Use Value: Enables deterministic <100 µs write latency during module enumeration - avoids scan-time jitter in safety-critical control loops.

Use Scenario: Capturing ECG waveform snapshots during arrhythmia detection in portable Holter monitors.

IC Role / Device Role / Timing Role: High-speed circular buffer memory writing raw ADC samples directly via DMA without CPU intervention.

Use Value: Supports sustained 1 kHz sampling with zero dropped frames - leverages 40 MHz SPI bandwidth and NoDelay™ to avoid FIFO overflow.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MB85RS2MT-FPNSE1	Fujitsu 2-Mbit FRAM; same 2.7–3.6 V range but higher density; 55 MHz max SPI clock; no HOLD pin	Lacks HOLD functionality - unsuitable where host CPU must preempt memory operations mid-transaction	Select when higher capacity and faster clock are prioritized over operation suspension capability
AT25SF041B-MAHB-T	Microchip 4-Mbit serial flash; requires 25 ms page program time; 100k endurance; supports QPI mode	Write latency orders of magnitude higher; needs polling or interrupt-driven completion detection	Select only if cost-per-bit is primary concern and infrequent writes dominate the use case

Compared with MB85RS2MT-FPNSE1 and AT25SF041B-MAHB-T, FM25V02A-G uniquely balances 10¹⁴ endurance, 40 MHz SPI speed, and HOLD pin support - making it optimal for real-time systems requiring deterministic, interruptible, high-cycle nonvolatile storage.

Availability

FM25V02A-G is available at Aetrix Electronics and suitable for industrial data loggers, smart energy meters, PLC I/O modules, and portable medical diagnostics requiring stable component supply across multi-year production programs.

Supply support for FM25V02A-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 MCUs, and memory solutions with emphasis on reliability and industrial longevity.

The FM25V02A-G belongs to Infineon's F-RAM portfolio, designed specifically for applications demanding infinite write endurance, instant nonvolatile storage, and deterministic timing - targeting industrial automation, energy infrastructure, and mission-critical embedded systems.

FAQ

Is FM25V02A-G pin-compatible with standard SPI EEPROMs like AT25DF041?

Yes - FM25V02A-G uses identical 8-pin SOIC/DFN footprints and matches the SPI pinout (CS, SCK, SI, SO, WP, HOLD, VDD, VSS) of industry-standard serial EEPROMs. Its command set is also backward-compatible: WREN, WRITE, READ, RDSR, and WRSR opcodes function identically, enabling hardware drop-in replacement without PCB redesign.

Does FM25V02A-G require external high-voltage programming circuitry?

No - unlike EEPROM or flash, FM25V02A-G performs writes using standard VDD (2.0–3.6 V) with no charge pumps or high-voltage generators. All write operations execute at bus speed using the same voltage rail as read operations, simplifying power design and eliminating HV-related layout constraints or EMI concerns.

How does the HOLD pin behave during an active write operation?

When HOLD is pulled LOW during a write, the FM25V02A-G immediately suspends data transfer after the current byte is latched - holding SCK, SI, and SO states. The internal address counter freezes, and the device ignores further SCK edges until HOLD returns HIGH. This allows the host CPU to service higher-priority interrupts without corrupting the write sequence.

What is the significance of the "G" suffix in FM25V02A-G?

The "G" denotes RoHS-compliant, lead-free packaging per JEDEC J-STD-020. It indicates the device meets EU Directive 2011/65/EU and is qualified for reflow soldering with peak temperatures up to 260 °C. This suffix replaces older non-RoHS variants and is the only version currently manufactured and supported by Infineon.

FM25V02A-G Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: F-RAM™

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

Packaging:: Tube

Product Status:: Active

Programmable:: Not Verified

Memory Type:: Non-Volatile

Memory Format:: FRAM

Technology:: FRAM (Ferroelectric RAM)

Memory Size:: 256Kbit

Memory Organization:: 32K x 8

Memory Interface:: SPI

Clock Frequency:: 40 MHz

Write Cycle Time - Word, Page:: -

Access Time:: -

Voltage - Supply:: 2V ~ 3.6V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SOIC

FM25V02A-G FAQ

1.How can I place an order for FM25V02A-G through Aetrix?

Please submit a Request for Quotation (RFQ) for FM25V02A-G on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for FM25V02A-G reliable?

The price and inventory of FM25V02A-G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FM25V02A-G is usually 5 days.

3.What payment methods are accepted for FM25V02A-G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FM25V02A-G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for FM25V02A-G?

FM25V02A-G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your FM25V02A-G order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for FM25V02A-G?

For technical support, including FM25V02A-G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FM25V02A-G requirements.

6.How does Aetrix verify that FM25V02A-G is sourced from the original manufacturer or authorized distributors?

All FM25V02A-G products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that FM25V02A-G meets industry standards.

7.What is the process for return or replacement of FM25V02A-G?

All FM25V02A-G units undergo pre-shipment inspection (PSI). If there is an issue with FM25V02A-G, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The FM25V02A-G part is unused and in its original packaging.

Return procedure for FM25V02A-G:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…

2026-08-11 LDO Regulator: Dropout Voltage, Noise, PSRR and Power Dissipation

LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…

2026-08-06 Conditional Access Module: CAM, CI/CI+ and DVB Security

Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…

2026-08-03 Electronic Component Obsolescence: EOL Risks, Replacement Options and Last-Time Buy Strategy

Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.

2026-07-29 18650 Battery: Voltage, Capacity, Charging and Pack Design

18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…

2026-07-27 Hall Effect Sensor: Working Principle, Types, Circuits and Applications

Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…

2026-07-20 Product Change Notification (PCN) in Electronic Components: Meaning and Supply Chain Response

Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…

2026-07-19 Blend Door Actuator: Symptoms, Location, Reset and Replacement Guide

A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…