Specification	25AA256T-I/ST

Clock Frequency	10 MHz
Memory Depth	32 K
Memory Format	EEPROM
Memory Interface (Type)	SPI
Memory Size	32 kB
Memory Type	Non-Volatile
Memory Width	8 bit
Mounting Type	Surface Mount
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Package Length	0.173 in
Package Name	8-TSSOP
Package Width	4.4 mm
Technology	EEPROM
Voltage - Supply (Maximum)	5.5 V
Voltage - Supply (Minimum)	1.8 V
Write Cycle Time - Page	5 ms
Write Cycle Time - Word	5 ms

25AA256 Series

256Kb 1.8V SPI Serial EEPROM

Part	Write Cycle Time - Word	Write Cycle Time - Page	Memory Format	Memory Type	Voltage - Supply (Maximum)	Voltage - Supply (Minimum)	Package Length	Package Name	Package Width	Operating Temperature (Max)	Operating Temperature (Min)	Memory Depth	Memory Width	Memory Size	Memory Interface (Type)	Clock Frequency	Mounting Type	Technology	Package / Case
Microchip Technology 25AA256-E/ST	5 ms	5 ms	EEPROM	Non-Volatile	5.5 V	1.8 V	0.173 in	8-TSSOP	4.4 mm	125 °C	-40 °C	32 K	8 bit	32 kB	SPI	10 MHz	Surface Mount	EEPROM
Microchip Technology 25AA256T-I/ST	5 ms	5 ms	EEPROM	Non-Volatile	5.5 V	1.8 V	0.173 in	8-TSSOP	4.4 mm	85 °C	-40 °C	32 K	8 bit	32 kB	SPI	10 MHz	Surface Mount	EEPROM
Microchip Technology 25AA256-E/P	5 ms	5 ms	EEPROM	Non-Volatile	5.5 V	1.8 V	0.3 in	8-DIP 8-PDIP	7.62 mm	125 °C	-40 °C	32 K	8 bit	32 kB	SPI	10 MHz	Through Hole	EEPROM
Microchip Technology 25AA256T-I/SN	5 ms	5 ms	EEPROM	Non-Volatile	5.5 V	1.8 V	0.154 in	8-SOIC	3.9 mm	85 °C	-40 °C	32 K	8 bit	32 kB	SPI	10 MHz	Surface Mount	EEPROM
Microchip Technology 25AA256-I/MF	5 ms	5 ms	EEPROM	Non-Volatile	5.5 V	1.8 V	6 mm	8-DFN-S	5 mm	85 °C	-40 °C	32 K	8 bit	32 kB	SPI	10 MHz	Surface Mount	EEPROM	8-VDFN Exposed Pad
Microchip Technology 25AA256-E/MF	5 ms	5 ms	EEPROM	Non-Volatile	5.5 V	1.8 V	6 mm	8-DFN-S	5 mm	125 °C	-40 °C	32 K	8 bit	32 kB	SPI	10 MHz	Surface Mount	EEPROM	8-VDFN Exposed Pad
Microchip Technology 25AA256T-E/SN	5 ms	5 ms	EEPROM	Non-Volatile	5.5 V	1.8 V	0.154 in	8-SOIC	3.9 mm	125 °C	-40 °C	32 K	8 bit	32 kB	SPI	10 MHz	Surface Mount	EEPROM
Microchip Technology 25AA256T-I/SM	5 ms	5 ms	EEPROM	Non-Volatile	5.5 V	1.8 V	0.209 in	8-SOIC 8-SOIJ	5.3 mm	85 °C	-40 °C	32 K	8 bit	32 kB	SPI	10 MHz	Surface Mount	EEPROM
Microchip Technology 25AA256-I/SN	5 ms	5 ms	EEPROM	Non-Volatile	5.5 V	1.8 V	0.154 in	8-SOIC	3.9 mm	85 °C	-40 °C	32 K	8 bit	32 kB	SPI	10 MHz	Surface Mount	EEPROM
Microchip Technology 25AA256-E/SM	5 ms	5 ms	EEPROM	Non-Volatile	5.5 V	1.8 V	0.209 in	8-SOIC 8-SOIJ	5.3 mm	125 °C	-40 °C	32 K	8 bit	32 kB	SPI	10 MHz	Surface Mount	EEPROM