AT25256 Series

256Kb SPI Serial EEPROM

Catalog

256Kb SPI Serial EEPROM

Part	Memory Format	Memory Size	Write Cycle Time - Word	Write Cycle Time - Page	Memory Interface (Type)	Technology	Clock Frequency	Memory Depth	Memory Width	Package Name	Mounting Type	Package Length	Package Width	Operating Temperature (Max)	Operating Temperature (Min)	Memory Type	Voltage - Supply (Maximum)	Voltage - Supply (Minimum)	Package / Case
Microchip Technology AT25256AW-10SI-2.7-T	EEPROM	32 kB	5 ms	5 ms	SPI	EEPROM	20 MHz	32 K	8 bit	8-SOIC	Surface Mount	0.209 in	5.3 mm	85 °C	-40 °C	Non-Volatile	5.5 V	2.7 V
Microchip Technology AT25256-10PI	EEPROM	32 kB	5 ms	5 ms	SPI	EEPROM	3 MHz	32 K	8 bit	8-DIP 8-PDIP	Through Hole	0.3 in	7.62 mm	85 °C	-40 °C	Non-Volatile	5.5 V	4.5 V
Microchip Technology AT25256B-CUL-T	EEPROM	32 kB	5 ms	5 ms	SPI	EEPROM	20 MHz	32 K	8 bit	8-dBGA	Surface Mount	2.35 mm	3.73 mm	85 °C	-40 °C	Non-Volatile	5.5 V	1.8 V	8-VFBGA DSBGA
Microchip Technology AT25256AW-10SI-1.8-T	EEPROM	32 kB	5 ms	5 ms	SPI	EEPROM	20 MHz	32 K	8 bit	8-SOIC	Surface Mount	0.209 in	5.3 mm	85 °C	-40 °C	Non-Volatile	5.5 V	1.8 V
Microchip Technology AT25256B-SSHL-T	EEPROM	32 kB	5 ms	5 ms	SPI	EEPROM	20 MHz	32 K	8 bit	8-SOIC	Surface Mount	0.154 in	3.9 mm	85 °C	-40 °C	Non-Volatile	5.5 V	1.8 V
Microchip Technology AT25256AN-10SU-1.8	EEPROM	32 kB	5 ms	5 ms	SPI	EEPROM	20 MHz	32 K	8 bit	8-SOIC	Surface Mount	0.154 in	3.9 mm	85 °C	-40 °C	Non-Volatile	5.5 V	1.8 V
Microchip Technology AT25256A-10PU-1.8	EEPROM	32 kB	5 ms	5 ms	SPI	EEPROM	20 MHz	32 K	8 bit	8-DIP 8-PDIP	Through Hole	0.3 in	7.62 mm	85 °C	-40 °C	Non-Volatile	5.5 V	1.8 V
Microchip Technology AT25256AW-10SI-1.8	EEPROM	32 kB	5 ms	5 ms	SPI	EEPROM	20 MHz	32 K	8 bit	8-SOIC	Surface Mount	0.209 in	5.3 mm	85 °C	-40 °C	Non-Volatile	5.5 V	1.8 V
Microchip Technology AT25256AW-10SI-2.7	EEPROM	32 kB	5 ms	5 ms	SPI	EEPROM	20 MHz	32 K	8 bit	8-SOIC	Surface Mount	0.209 in	5.3 mm	85 °C	-40 °C	Non-Volatile	5.5 V	2.7 V
Microchip Technology AT25256W-10SI-1.8	EEPROM	32 kB	10 ms	10 ms	SPI	EEPROM	2.1 MHz	32 K	8 bit	8-SOIC	Surface Mount	0.209 in	5.3 mm	85 °C	-40 °C	Non-Volatile	3.6 V	1.8 V

Catalog

256Kb SPI Serial EEPROM

Description

The Microchip AT25256B is a 256 Kb Serial EEPROM utilizing the industry standard Serial Peripheral Interface (SPI) compatible serial bus. The device is organized as one block of 32,768 x 8-bit and is optimized for use in consumer electronics, industrial, medical, and automotive applications where reliable and dependable nonvolatile memory storage is essential. Software write protection allows the user to protect ¼, ½, or the entire memory array. A hardware write protect pin is also provided, which additionally protects against inadvertent writes to the status register. The EEPROM is available in a variety of space-saving packaging options.