STMicroelectronics M24C02-DRMN8TP/K

Overview

M24C02-DRMN8TP/K from STMicroelectronics is a 2-Kbit (256-byte) I²C-compatible serial EEPROM with 16-byte page architecture, Schmitt-trigger inputs, and extended industrial temperature operation up to 105 °C. It supports 1 MHz I²C bus speed, features an additional lockable 16-byte Identification Page for device ID or application parameters, and delivers 4 million write cycles at 25 °C. Used in automotive body control modules for calibration storage and configuration retention across thermal cycling.

For engineers reviewing the M24C02-DRMN8TP/K datasheet, M24C02-DRMN8TP/K pinout, M24C02-DRMN8TP/K application, or M24C02-DRMN8TP/K equivalent, key selection criteria include guaranteed 105 °C operation, integrated ECC logic for data integrity, WC-pin-based hardware write protection, and RoHS-compliant TSSOP8 (DW) packaging with 0.65 mm pitch.

Technical Context

The M24C02-DRMN8TP/K implements a true EEPROM cell structure with on-chip high-voltage generation for byte- and page-level writes. Its I²C slave interface complies fully with standard, fast, and fast-plus modes (100 kHz/400 kHz/1 MHz), supporting up to eight devices on one bus via E2–E0 address pins.

It integrates embedded Error Correction Code (ECCx1) logic to detect and correct single-bit errors during read operations, enhancing reliability in noisy automotive environments. The dedicated Identification Page (16 bytes) includes factory-programmed ST device codes (20h/E0h/08h) and supports permanent lock via WC pin assertion after user data programming.

Key Specifications

Pinout & Package

Package: TSSOP8 (DW), 3 mm × 6.4 mm, 0.65 mm pitch, 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 AT24C02D-SSHM-T and BR24G02FJ-3GE2, the M24C02-DRMN8TP/K uniquely combines AEC-Q100 Grade 2 qualification, ECC-protected reads, and a lockable Identification Page - making it the only option meeting ISO 26262 ASIL-B calibration storage requirements without external redundancy.

Availability

M24C02-DRMN8TP/K is available at Aetrix Electronics and suitable for automotive body control units, industrial PLCs, medical infusion pumps, and smart energy meters requiring stable component supply across extended temperature and long product lifecycles.

Supply support for M24C02-DRMN8TP/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 automotive, industrial, and consumer markets.

The M24C series targets high-reliability embedded systems requiring extended temperature operation and robust data retention; it was engineered specifically for automotive ECUs and industrial controllers needing certified nonvolatile storage.

FAQ

What is the function of the WC pin on the M24C02-DRMN8TP/K?

The WC (Write Control) pin provides hardware-level write protection: when driven high, it globally inhibits all write operations to both the main memory array and the Identification Page. When low or left floating, writes are enabled. This feature prevents accidental overwrites during power transients or firmware updates, and is critical for ASIL-B calibration storage compliance.

Does the M24C02-DRMN8TP/K support 1 MHz I²C communication in all operating conditions?

Yes - the device supports 1 MHz I²C bus speed across its full specified operating range (1.7 V to 5.5 V, −40 °C to +105 °C), verified per AC characteristics Table 12 in the datasheet. Bus capacitance must remain ≤400 pF, and pull-up resistors sized per Figure 11 to maintain signal rise time <100 ns.

How is the Identification Page used and secured?

The 16-byte Identification Page contains three factory-programmed bytes (ST manufacturer code 20h, I²C family code E0h, density code 08h) followed by 13 user-writable bytes. After writing application-specific data, asserting WC high permanently locks the entire page in read-only mode - irreversible and hardware-enforced.

Is ECC functionality active during every read operation?

Yes - the embedded ECCx1 logic automatically executes on every read access to the main memory array. It detects and corrects single-bit errors in real time without CPU intervention or additional timing overhead, ensuring data integrity even after years of thermal stress at 105 °C.