25LC256-I/SN - EEPROM Memory IC 256Kbit SPI 10MHz SOIC-8

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Datasheet

25LC256-I/SN - EEPROM Memory IC | 256Kbit, SPI Interface, 10MHz | SOIC-8 Package

The 25LC256-I/SN from Microchip Technology Inc. is a high-performance 256 Kbit (32,768x8) Serial Electrically Erasable Programmable Read-Only Memory (EEPROM) utilizing the Serial Peripheral Interface (SPI) bus. Designed for reliability and low-power operation, it is ideal for industrial, consumer, automotive, and medical applications where dependable non-volatile data storage is required. With support for SPI modes 0 and 3, a maximum clock frequency of 10 MHz, and self-timed erase/write cycles (5 ms max), this EEPROM delivers fast, flexible, and secure data storage. Its software and hardware write protection features ensure data integrity, while AEC-Q100 automotive qualification makes it suitable for high-reliability environments.

Key Features

• Memory Organization: 32,768x8 bits (256 Kbit total capacity)
• Interface Type: SPI-compatible serial interface
• SPI Modes Supported: Mode 0 and Mode 3
• Clock Frequency: Up to 10 MHz for fast data access
• Write Cycle Time: Self-timed erase/write cycles (5 ms max)

• Power Consumption:

  • Read current: 6 mA (max) at 10 MHz

  • Write current: 5 mA (max) at 5.5V

  • Standby current: 5 µA (max) at 5.5V

• Write Protection Options:

  • Software Protection: Protect ¼, ½, or entire memory array

  • Hardware Protection: Dedicated WP pin prevents inadvertent writes

• Endurance & Data Retention:

  • Over 1 million write/erase cycles

  • 200-year data retention for long-term reliability

• Temperature Range:

  • Industrial (I): −40 C to+85 C

  • Extended (E): −40 C to+125 C

• Package Options: Compact SOIC-8, PDIP, SOIJ, TSSOP, and 5x6mm DFN

• Reliability: Fully AEC-Q100 Automotive Qualified

• Environmental Compliance:

  • Pb-Free and RoHS Compliant

  • Available with Factory Programming for custom applications