25AA256 Datasheet (Microchip Technology) - 256K SPI Bus Serial EEPROM

25AA256, 256K SPI Bus Serial EEPROM

The Microchip Technology Inc.

25AA256/25LC256 (25XX256 *) are 256 Kbit Serial Electrically Erasable PROMs.

The memory is accessed via a simple Serial Peripheral Interface (SPI) compatible serial bus.

The bus signals required are a clock input (SCK) plus separate data in (SI) and data out (SO) li

25AA256 Features

* Max. Clock 10 MHz

* Low-Power CMOS Technology: - Max. Write Current: 5 mA at 5.5V, 10 MHz - Read Current: 6 mA at 5.5V, 10 MHz - Standby Current: 1 A at 5.5V

* 32,768 x 8-bit Organization

* 64-Byte Page

* Self-Timed Erase and Write Cycles (5 ms max.