STMicroelectronics M24512-DFCS6TP/K

Overview

M24512-DFCS6TP/K from STMicroelectronics is a 512-Kbit (64 Kbyte) I²C-compatible serial EEPROM with 128-byte page size, 1.7 V to 5.5 V single-supply operation, and 1 MHz max clock speed. It features an additional write-lockable identification page, enhanced ESD/latch-up protection, and operates across –40 °C to +85 °C for industrial sensor calibration and firmware parameter storage.

For engineers reviewing the M24512-DFCS6TP/K datasheet, M24512-DFCS6TP/K pinout, M24512-DFCS6TP/K application, or M24512-DFCS6TP/K equivalent, key selection criteria include supply voltage range (1.7–5.5 V), I²C bus mode support (100 kHz/400 kHz/1 MHz), identification page lockability, 4 million write cycles, and ECOPACK2®-compliant TSSOP8 package.

Technical Context

The device implements a standard I²C slave protocol with 7-bit device addressing and configurable chip enable (E0–E2) pins enabling up to eight devices on one bus. It supports byte and page write modes with automatic address increment and internal write cycle timing (t_W ≤ 5 ms).

Its memory architecture includes ECC logic applied per group of four bytes for single-bit error correction during reads, and a dedicated 128-byte identification page that can be permanently locked in read-only mode via a specific command sequence - a feature exclusive to M24512-D order codes like this part.

Key Specifications

Pinout & Package

Supplied in ECOPACK2®-compliant TSSOP8 (DW) package, 169 mil width, with 0.65 mm pitch and exposed pad option for thermal management.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AT24C512B-SSHL-T and BR24G512FJ-3GE2, the M24512-DFCS6TP/K uniquely delivers hardware-permanent ID page locking and ECC per 4-byte group - critical for safety-certified systems where data integrity and tamper resistance are non-negotiable.

Availability

M24512-DFCS6TP/K is available at Aetrix Electronics and suitable for industrial sensor calibration, automotive body control modules, and medical infusion pumps requiring stable component supply with full ECOPACK2® compliance and traceable wafer-level testing.

Supply support for M24512-DFCS6TP/K 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.

This device belongs to the M24xxx-D series of I²C EEPROMs engineered specifically for applications demanding secure, long-life nonvolatile storage with hardware-enforced write protection and ECC - targeting medical, automotive, and industrial certification requirements.

FAQ

What is the function of the WC pin on M24512-DFCS6TP/K?

The WC (Write Control) pin is an active-high hardware write protect input. When driven high, it disables all write operations-including byte, page, and identification page writes-while still allowing reads and address acknowledgment. This provides deterministic, glitch-immune protection against unintended firmware or noise-induced overwrites, independent of software state.

Does M24512-DFCS6TP/K support 1 MHz I²C operation across its full voltage range?

Yes. Unlike many competing EEPROMs, the M24512-DFCS6TP/K guarantees 1 MHz I²C clock operation from 1.7 V to 5.5 V, as confirmed in DS6520 Rev 31 Section 8 AC characteristics. This eliminates voltage-dependent clock throttling and simplifies timing design for mixed-voltage systems.

How does the identification page differ from standard memory pages?

The identification page is a dedicated 128-byte region accessible only via device select code 1011b (vs. 1010b for main array). It supports write and lock commands distinct from main memory, and once locked, becomes permanently read-only - verified by NoAck response to subsequent write attempts - providing hardware-enforced immutability.

Can ECC correction be disabled or configured?

No. ECC is fully transparent and always active on every read from the 4-byte groups across both main memory and identification page. It requires no host intervention, configuration, or additional address space - the corrected data appears directly on SDA, and the logic is implemented entirely within the silicon's sense amplifier and control logic.