4256AW6 / A016N (M95M02-DRMN6TP) Serial EEPROM – 2Mbit, SPI, SOIC-8, 1.8V–5.5V

The 4256AW6 / A016N is the marking code for M95M02-DRMN6TP, a high-capacity 2Mbit (256KB) SPI serial EEPROM developed by STMicroelectronics. Designed for applications requiring non-volatile memory with robust endurance and extended data retention, it features a fast SPI interface, a wide operating voltage range, and built-in data protection.

Packaged in a JEDEC-compliant SOIC-8 housing, this EEPROM is ideal for configuration storage, firmware logging, and secure data applications across automotive, industrial, and embedded systems. With support for over 4 million write cycles per byte and up to 200 years of data retention at 55 °C, it ensures reliable operation across demanding environments. Hardware and software write protection mechanisms are also included to prevent accidental data corruption.

Key Features:

1. 2Mbit (256KB) EEPROM Memory: Provides ample storage for data logging, system configuration, and secure firmware data.

2. 4-Wire SPI Interface: Compatible with SPI Modes 0 and 3, supporting clock rates up to 5 MHz.

3. Wide Voltage Range: Operates reliably from 1.8V to 5.5V, making it ideal for battery-powered and mixed-voltage systems.

4. High Endurance & Retention: Over 4 million write/erase cycles per byte and 200-year data retention at 55°C.

5. Integrated Write Protection: Write enable latch, block-level hardware/software write protection, and configurable status register bits.

6. Compact SOIC-8 Package: JEDEC-compliant, RoHS-certified body ideal for SMT manufacturing and space-constrained PCBs.