STMicroelectronics M24C02-RMC6TG

Overview

M24C02-RMC6TG from STMicroelectronics is a 2-Kbit (256-byte) I²C-compatible serial EEPROM organized as 256 × 8 bits, operating with 1.8 V to 5.5 V supply and supporting up to 400 kHz Fast-mode I²C bus communication. It features hardware write protection via WC pin, 16-byte page write capability, and is packaged in RoHS-compliant UFDFPN8 (2 × 3 mm) ECOPACK2. It serves as nonvolatile configuration storage in embedded microcontroller systems requiring low-voltage operation and robust data retention.

For engineers reviewing the M24C02-RMC6TG datasheet, M24C02-RMC6TG pinout, M24C02-RMC6TG application, or M24C02-RMC6TG equivalent, key selection considerations include its 1.8 V minimum VCC, 4 million write cycles, -40 °C to +85 °C industrial temperature range, and hardware-based memory lock via WC input - critical for power-sensitive IoT sensor nodes and firmware parameter storage.

Technical Context

The device implements a standard I²C slave protocol with 7-bit device address (1010xxxR/W), where E0–E2 pins configure the three LSBs of the address; in the UFDFPN8 package, all three are bonded and accessible. Its internal architecture includes a page latch, X/Y decoders, HV generator for EEPROM programming, and automatic address incrementing during sequential reads.

Write control (WC) is a dedicated active-high hardware lock that disables all write operations-including byte and page writes-when asserted, while still acknowledging device select and address bytes. The device incorporates a power-on reset (POR) circuit ensuring no spurious writes during voltage ramp-up, and supports both random and sequential read modes with roll-over addressing (except in DFN5 variant).

Key Specifications

Pinout & Package

Package: UFDFPN8 (ECOPACK2), 2 mm × 3 mm, 0.5 mm pitch, wettable flank, marking side top view. Pin 1 is located at the bottom-left corner adjacent to the notch/dot marker.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AT24C02D-SSHM-T and BR24G02-3MNUC, M24C02-RMC6TG uniquely balances 1.8 V operation, hardware write protection, 4M endurance, and industrial temperature range - making it optimal for firmware-critical, low-power, and high-reliability embedded systems.

Availability

M24C02-RMC6TG is available at Aetrix Electronics and suitable for smart sensor calibration, industrial PLC configuration, and automotive body control module applications requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.

Supply support for M24C02-RMC6TG 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, specializing in microcontrollers, power management, sensors, and memory solutions for industrial, automotive, and consumer markets.

M24C02-RMC6TG belongs to the M24C01/02 family of I²C EEPROMs designed specifically for robust, low-voltage, and space-constrained embedded systems requiring guaranteed data integrity and simplified system-level integration.

FAQ

What is the function of the WC pin on M24C02-RMC6TG?

The WC (Write Control) pin is an active-high hardware lock that disables all write operations-including byte and page writes-when driven high. It does not affect read operations. When WC is low or floating, writes are enabled. This provides deterministic, glitch-immune protection against unintended memory modification during power transients or firmware errors.

Can M24C02-RMC6TG operate at 1.8 V across the full -40 °C to +85 °C range?

Yes. As an "R"-suffix variant, M24C02-RMC6TG is fully specified for 1.8 V to 5.5 V operation across the entire industrial temperature range (-40 °C to +85 °C), unlike "W" variants (2.5–5.5 V) or "F" variants (1.7 V min, with temperature-dependent derating). This enables direct interfacing with 1.8 V I/O domains without level shifters.

How many devices can share the same I²C bus using M24C02-RMC6TG?

Up to eight M24C02-RMC6TG devices can coexist on one I²C bus using the E0, E1, and E2 pins to configure unique 3-bit address bits (b1–b3) of the 7-bit device address (1010xxxR/W). All three pins must be hard-wired to VCC or VSS; floating is interpreted as logic 0. In the UFDFPN8 package, these pins are bonded and accessible.

Does M24C02-RMC6TG support sequential read with automatic address wraparound?

Yes - for the UFDFPN8 package, sequential read automatically increments the internal address counter and wraps from address FFh back to 00h after the last byte. This behavior is confirmed in DS9398 Rev 8 (Section 5.2.3) and enables continuous streaming of stored configuration data without host-side address management.