Microchip Technology's 25LC256-E/ST Serial EEPROM

The 25LC256-E/ST is a 256 Kb (32 K x 8) Serial Electrically Erasable Programmable Read-Only Memory (EEPROM) device from Microchip Technology, renowned for its reliability and performance in a wide range of applications. This high-density EEPROM offers a convenient non-volatile storage solution for sophisticated applications in the industrial, automotive, telecommunications, and consumer electronics sectors.

Designed with flexibility in mind, the 25LC256-E/ST supports the industry-standard Serial Peripheral Interface (SPI) bus, enabling simple integration with a vast array of microcontrollers and processors. The device boasts a significant data retention period of over 200 years and a write endurance of 1 million erase/write cycles, ensuring data integrity over extended periods of use.

Operating within a voltage range of 2.5V to 5.5V, the 25LC256-E/ST is versatile enough to accommodate the power supply requirements of most embedded systems. This EEPROM operates over the industrial temperature range (-40°C to +85°C), making it suitable for harsh environments.

One of the key features of the 25LC256-E/ST is its fast write cycle times, with a write cycle time of just 5 ms. Additionally, the device offers a self-timed erase and write cycle, meaning no external erase is required before writing to the device. For safety and data integrity, it includes block write protection. Users can enable this feature to prevent accidental data overwrites and modifications.

The 25LC256-E/ST comes in a compact TSSOP package, which is ideal for space-constrained applications. Its serial interface helps reduce the overall footprint of the system's PCB, as well as minimize the complexity of the circuit design.

Overall, the 25LC256-E/ST from Microchip Technology is a robust and reliable choice for designers looking for a non-volatile memory solution that is easy to implement, efficient, and durable. Its extensive feature set ensures that it can meet the needs of a broad spectrum of applications, delivering the performance and reliability that Microchip's products are known for.