MCHP25LC040A-I/SN
Overview
The 25LC040A-I/SN is a 4 Kbit serial EEPROM organized as 512 x 8 bits, utilizing a high-speed SPI interface. It operates over a wide voltage range of 2.5V to 5.5V and supports clock frequencies up to 10 MHz. This low-power CMOS device is designed for reliable non-volatile data storage in industrial environments, featuring a standby current of only 5 uA.
Why Choose This Part
This EEPROM offers a rapid 5ms write cycle time and a page write mode of up to 16 bytes for efficient data updates. Its 10 MHz clock speed via SPI ensures low-latency communication, while the robust block write protection prevents accidental data corruption in noisy environments.
Applications
Key Specifications
Getting Started
Interface this device with any MCU using a standard SPI peripheral (Mode 0 or 3). Ensure the CS pin is pulled high during power-up to prevent inadvertent writes. For rapid prototyping, use a SOIC-8 to DIP adapter or the Microchip MPLAB Starter Kit for Serial EEPROMs.
Also Consider
STMicroelectronics
- A direct alternative with high endurance ratings and 20 MHz clock support at higher supply voltages.
