25LC256

The 25LC256 is a Microchip 256 Kbit (32K x 8) serial electrically erasable PROM that communicates over the Serial Peripheral Interface (SPI) bus, in an 8-pin package. It stores the configuration, the calibration and the parameters that must survive a power cycle, and the SPI bus gives a faster access than I2C, which suits a design that reads or writes the memory frequently. The device uses a 64-byte page write with partial pages allowed and a self-timed write cycle, and it includes a write-protect pin and a hold pin, so a host can pause the device to service a higher-priority interrupt without losing the transfer. The endurance is about one million write cycles with a data retention of 40 years, and the device operates from about 2.5 V to 5.5 V with industrial and extended temperature grades, so it suits an industrial or an automotive design. The small 8-pin package and the simple SPI interface make it a natural companion to a microcontroller, and the common pinout across the 25-series family lets a design move up in density without a board change. Typical applications include configuration and parameter storage, data logging, buffer storage and code or data storage where a fast access is needed. Every device BeiLuo ships is factory-traceable and includes an import declaration, a certificate of origin and a RoHS compliance file. Our FAE team helps you choose the density and plan the write protection and the layout.