STMicroelectronics M95020-RMC6TG

Overview

M95020-RMC6TG from STMicroelectronics is a 2-Kbit (256-byte) serial SPI bus EEPROM organized as 256 × 8 bits, operating from 1.8 V to 5.5 V supply, supporting up to 20 MHz clock frequency, with 16-byte page write capability, >4 million write cycles, and 200-year data retention. It serves as non-volatile configuration storage in microcontroller-based industrial sensors and embedded control modules.

For engineers reviewing the M95020-RMC6TG datasheet, M95020-RMC6TG pinout, M95020-RMC6TG application, or M95020-RMC6TG equivalent, key selection criteria include its 1.8 V minimum VCC, hardware/software write protection (BP1/BP0), HOLD functionality for SPI bus arbitration, and ECOPACK2-compliant TSSOP8 package.

Technical Context

This EEPROM implements a standard SPI interface with CPOL/CPHA = (0,0) or (1,1), where data is latched on C's rising edge (D input) and output on C's falling edge (Q output). It features an internal high-voltage generator and sequencer enabling byte/page writes within 5 ms without external programming voltage.

The device integrates ECC x1 per byte for single-bit error correction during read operations, and includes a status register with WIP, WEL, BP1, and BP0 bits - the latter two being non-volatile and programmable via WRSR to lock quarter/half/entire memory array against accidental writes.

Key Specifications

Pinout & Package

Package: TSSOP8 (169 mil width), RoHS-compliant and halogen-free (ECOPACK2).

Key Features

Applications

Equivalent & Alternatives

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

Compared with AT25020B-SSHL-T and FM25V02A-G, M95020-RMC6TG uniquely balances wide VCC compatibility (1.8–5.5 V), integrated HOLD for bus arbitration, and ECC for long-term read integrity - making it optimal for industrial designs requiring robustness across voltage domains and environmental stress.

Availability

M95020-RMC6TG is available at Aetrix Electronics and suitable for industrial sensor calibration, smart meter firmware storage, and PLC I/O module configuration requiring stable component supply, long-lifecycle availability, and ECOPACK2-compliant packaging.

Supply support for M95020-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, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and memory solutions for industrial, automotive, and consumer markets.

M95020-RMC6TG belongs to the M950x0 family of SPI EEPROMs engineered for reliable, low-voltage non-volatile storage in space-constrained industrial and metering applications where write endurance, data retention, and bus-level robustness are critical.

FAQ

What is the function of the HOLD pin on M95020-RMC6TG?

The HOLD pin pauses ongoing SPI communication without deselecting the device or resetting internal state. When asserted low (with S low and C low), it places Q in high-impedance and ignores D and C transitions, enabling multi-master bus arbitration. It does not affect internal write cycles already in progress.

Does M95020-RMC6TG support the identification page feature?

No. The identification page (16-byte read/write/lockable area) is exclusive to the M95040-DF variant. M95020-RMC6TG has only the main 256-byte memory array and no dedicated ID page; RDID, WRID, RDLS, and LID instructions are not supported.

How does write protection work on M95020-RMC6TG?

It uses three independent mechanisms: (1) W pin held low disables all writes globally; (2) BP1/BP0 bits in the status register lock quarter/half/entire array via WRSR; (3) WEL bit must be set via WREN before any write instruction executes. All three must be satisfied for a write to proceed.

Can M95020-RMC6TG operate at 1.7 V?

No. M95020-RMC6TG is rated for 1.8 V to 5.5 V operation. The 1.7 V minimum applies only to the M95040-DF variant. Operating below 1.8 V risks unreliable read/write behavior, failed POR reset, or undefined status register states per DS1639 Rev 14 specifications.