Microchip 256 kB EEPROM 50 ns 8-Pin SOIC Serial-SPI Memory 25LC256-E/SN

Microchip 25LC256-E/SN is a 256 kB Serial-SPI EEPROM memory module featuring a fast 50 ns maximum random access time and a maximum clock frequency of 10 MHz. The device is offered in a compact 8-pin SOIC surface-mount package with dimensions of 4.9 mm length, 1.75 mm width, and 1.75 mm height, making it suitable for space-constrained electronic designs.

This EEPROM operates at a supply voltage from 2.5V up to 5.5V, supporting a wide range of power supply options. It stores 32,768 words of 8 bits each, arranged in a 256 kB organization, with memory endurance rated beyond 1 million erase/write cycles and data retention guaranteed for over 200 years, providing reliable long-term storage.

Power consumption is optimized with a typical read current of 6 mA and standby current as low as 1 μA. The module also integrates multiple write protection mechanisms, including block write protection configurable to protect none, one quarter, half, or the entire memory array, along with built-in power-on/off write protection circuitry to maintain data integrity.

Designed for automotive applications, this EEPROM meets AEC-Q100 standards and provides ESD protection exceeding 4000 volts, ensuring performance stability and durability in harsh environments. The device supports Serial Peripheral Interface (SPI) communication protocol for efficient data transfer and system integration.

Maximum clock frequency of 10 MHz enables high-speed operations. Self-timed erase and write cycles complete within 5 ms maximum. Pin configuration supports Hold pin to pause operations when needed. Ideal for industrial, automotive, and consumer electronics requiring non-volatile memory.

Packaged in tubes facilitating automated insertion in manufacturing processes.

The Microchip 25LC256-E/SN EEPROM is widely applicable in electronic components, power connectors, semiconductor memory chips, and other electronic memory solutions. Available with high data retention and robust endurance, it ensures reliable operation across diverse industrial and commercial applications.

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