STMicroelectronics M24M01E-FMC6TG

Overview

M24M01E-FMC6TG from STMicroelectronics is a 1-Mbit I²C-compatible EEPROM organized as 128 K × 8 bits, operating from 1.6 V to 5.5 V with support for 1 MHz Fast-mode Plus, 400 kHz Fast-mode, and 100 kHz Standard-mode I²C bus speeds across –40 °C to +85 °C. It integrates three user-accessible registers (configurable device address, software write protection, device type identifier), a 256-byte identification page, and hardware write control (WC) for full-array protection - deployed in industrial sensor nodes for calibration data storage.

For engineers reviewing the M24M01E-FMC6TG datasheet, M24M01E-FMC6TG pinout, M24M01E-FMC6TG application, or M24M01E-FMC6TG equivalent, key selection considerations include its 4 ms typical byte/page write time, 350 nA standby current, preprogrammed device address capability, configurable block-level software write protection, and ECOPACK2-compliant SO8N/TSSOP8/UFDFPN8/WLCSP5 packaging options.

Technical Context

The M24M01E-FMC6TG implements a dedicated I²C target interface with open-drain SDA and input-only SCL and WC pins, requiring external pull-up resistors on SDA. Its internal architecture includes an HV generator and sequencer for EEPROM programming, ECC-enabled sense amplifiers, and page latches supporting 256-byte page writes.

It features three nonvolatile configuration registers: DTI (factory-locked 1011), CDA (user-configurable C2/C1 bits with DAL lock), and SWP (WPA/BP1/BP0/WPL bits enabling quarter/half/¾/full memory block protection). The identification page supports permanent read-only locking after initial programming.

Key Specifications

Pinout & Package

Package: SO8N (150 mil width), TSSOP8 (169 mil width), UFDFPN8 (2 × 3 mm), WLCSP5 (5-ball wafer-level chip scale), or unsawn wafer. This M24M01E-FMC6TG variant uses SO8N.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar EEPROM applications.

Compared with AT24CM01-SSHD-T and BR24M10FJ-WE2, the M24M01E-FMC6TG uniquely combines 1 MHz I²C, hardware WC pin, configurable CDA register, and lockable identification page - making it optimal for industrial and medical systems demanding robust configuration management and long-term data integrity.

Availability

M24M01E-FMC6TG is available at Aetrix Electronics and suitable for industrial sensor calibration, smart meter firmware storage, medical device configuration, and automotive body control module applications requiring stable component supply, long-lifecycle assurance, and ECOPACK2-compliant packaging.

Supply support for M24M01E-FMC6TG 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and memory solutions for industrial, automotive, and consumer markets.

The M24M01E-F series belongs to ST's serial EEPROM product line, engineered specifically for high-reliability, low-power, and secure nonvolatile storage in harsh environments - emphasizing configurability, long-term data retention, and I²C protocol robustness.

FAQ

What is the function of the WC pin on M24M01E-FMC6TG?

The WC (Write Control) pin is an active-high hardware input that globally disables all write operations to the entire memory array when driven high. When WC is low or floating, writes are enabled. This provides fail-safe protection against spurious writes during power-up, brown-out, or firmware errors - independent of software write protection settings.

Can the identification page be permanently locked after programming?

Yes. After writing data to the 256-byte identification page, it can be permanently locked in read-only mode via a dedicated lock command. Once locked, subsequent write attempts to this page result in NACK responses, and the content becomes immutable - ideal for storing cryptographic keys or factory calibration data requiring tamper resistance.

How does the configurable device address (CDA) register work?

The CDA register contains two user-programmable bits (C2/C1) that define the device's I²C slave address, allowing up to four unique addresses on the same bus. A lock bit (DAL) freezes the register permanently when set to 1. Factory-default CDA is 00, and preprogrammed variants ship with C2/C1 preset and DAL=1 for guaranteed address stability.

Does M24M01E-FMC6TG support standard I²C addressing with 7-bit or 10-bit format?

M24M01E-FMC6TG uses standard 7-bit I²C addressing with a fixed 4-bit device type identifier (1011) and two programmable chip-enable bits (C2/C1), forming an 8-bit device select code. It does not support 10-bit addressing. The full address byte includes the 7-bit device code plus R/W bit, conforming to I²C specification v3.0.