25LC040A-I/SN

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Microchip Technology

512 X 8 SPI BUS SERIAL EEPROM, PDSO8, 3.90 MM, ROHS COMPLIANT, PLASTIC, SOIC-8

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DocumentsDatasheet 25LC010A/25LC020A/25LC040A 1-Kbit to 4-Kbit Serial EEPROM High Temp Family Data Sheet +5

25LC040A-I/SN

Active

Microchip Technology

512 X 8 SPI BUS SERIAL EEPROM, PDSO8, 3.90 MM, ROHS COMPLIANT, PLASTIC, SOIC-8

Deep-Dive with AI

DocumentsDatasheet 25LC010A/25LC020A/25LC040A 1-Kbit to 4-Kbit Serial EEPROM High Temp Family Data Sheet +5

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics commom to parts in this series

Specification	25LC040A-I/SN	25LC040 Series

Clock Frequency	10 MHz	2 - 10 MHz
Grade	-	Automotive
Memory Format	EEPROM	EEPROM
Memory Interface	SPI	SPI
Memory Organization [custom]	512	512
Memory Organization [custom]	8	8
Memory Size	512 B	512 B
Memory Type	Non-Volatile	Non-Volatile
Mounting Type	Surface Mount	Surface Mount, Through Hole
Operating Temperature [Max]	85 °C	70 - 150 °C
Operating Temperature [Min]	-40 °C	-55 - 0 °C
Package / Case	3.9 mm	0.118 - 3.9 mm
Package / Case	8-SOIC	8-SOIC, 8-TSSOP, 8-MSOP, SOT-23-6, 8-DIP, 8-TSSOP (0.173", 4.40mm Width), 8-VFDFN Exposed Pad
Package / Case	-	3 - 7.62 mm
Qualification	-	AEC-Q100
Supplier Device Package	8-SOIC	8-SOIC, 8-MSOP, SOT-23-6, 8-PDIP, 8-TSSOP, 8-DFN (2x3)
Technology	EEPROM	EEPROM
Voltage - Supply [Max]	5.5 V	5.5 V
Voltage - Supply [Min]	2.5 V	2.5 V
Write Cycle Time - Word, Page	5 ms	5 ms

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Arrow Electronics	N/A	1	$ 0.52
		1	$ 0.54
		25	$ 0.51
		25	$ 0.53
		100	$ 0.46
		100	$ 0.49
		700	$ 0.56
		1000	$ 0.47
		5000	$ 0.45
Avnet Americas	N/A	1	$ 1.92
		100	$ 1.44
		700	$ 0.49
		700	$ 0.49
		900	$ 0.49
		900	$ 0.49
		1000	$ 1.25
		1600	$ 0.46
		1600	$ 0.46
		3500	$ 0.45
		3500	$ 0.45
		7000	$ 0.45
		7000	$ 0.45
Component Electronics, Inc	N/A	1	$ 1.92
		100	$ 1.44
		500	$ 0.41
		1000	$ 1.25
DigiKey	N/A	1	$ 0.56
		25	$ 0.55
		100	$ 0.51
Digikey	Tube	1	$ 0.56
		25	$ 0.55
		100	$ 0.50
Farnell	N/A	1	$ 0.53
		1	$ 0.52
		10	$ 0.51
		25	$ 0.52
		100	$ 0.51
		250	$ 0.50
Future Electronics	N/A	1	$ 0.50
		97	$ 0.83
		100	$ 0.50
		125	$ 0.49
		300	$ 0.48
		300	$ 0.46
		750	$ 0.47
		1000	$ 0.44
		2000	$ 0.45
		2500	$ 0.42
		5000	$ 0.41
		7500	$ 0.41
		10000	$ 0.40
		15000	$ 0.39
Master Electronics	N/A	100	$ 0.50
		300	$ 0.46
		1000	$ 0.44
		2500	$ 0.42
		5000	$ 0.41
		7500	$ 0.41
		10000	$ 0.40
		15000	$ 0.39
Microchip Direct	TUBE	1	$ 0.54
		25	$ 0.53
		100	$ 0.49
		1000	$ 0.47
		5000	$ 0.45
		10000	$ 0.42
Microchip Technology Inc	N/A	1	$ 0.54
		1	$ 0.50
		10	$ 0.54
		25	$ 0.53
		100	$ 0.49
		125	$ 0.49
		300	$ 0.48
		750	$ 0.47
		1000	$ 0.47
		2000	$ 0.45
		5000	$ 0.45
Mouser Electronics	N/A	1	$ 0.53
		1	$ 0.53
		1	$ 0.54
		1	$ 0.53
		10	$ 0.52
		10	$ 0.52
		10	$ 0.52
		25	$ 0.52
		25	$ 0.53
		25	$ 0.52
		100	$ 0.50
		100	$ 0.50
		100	$ 0.49
		100	$ 0.50
		300	$ 0.49
		300	$ 0.49
		500	$ 0.48
		500	$ 0.48
		1000	$ 0.46
		1000	$ 0.47
		1000	$ 0.46
		5000	$ 0.45
Onlinecomponents.com	N/A	3	$ 0.68
		10	$ 0.64
		25	$ 0.58
		100	$ 0.50
		100	$ 0.55
		300	$ 0.46
		700	$ 0.48
		900	$ 0.48
		1000	$ 0.44
		1600	$ 0.46
		2500	$ 0.42
		3500	$ 0.45
		5000	$ 0.41
		7000	$ 0.45
		7500	$ 0.41
		10000	$ 0.40
		15000	$ 0.39
RS	N/A	1	$ 0.25
		10	$ 0.53
		80	$ 0.53
		80	$ 0.52
		100	$ 0.50
		125	$ 0.24
		200	$ 0.65
		250	$ 0.24
		300	$ 0.46
		300	$ 0.60
		750	$ 0.23
		1000	$ 0.44
		1000	$ 0.57
		1500	$ 0.23
		2500	$ 0.42
		2500	$ 0.55
		5000	$ 0.41
		5000	$ 0.54
		7500	$ 0.41
		10000	$ 0.40
		15000	$ 0.39
Sensible Micro Corporation	N/A	100	$ 0.29
		100	$ 0.50
		300	$ 0.46
		500	$ 0.28
		1000	$ 0.27
		1000	$ 0.44
		2500	$ 0.42
		5000	$ 0.41
		7500	$ 0.41
		10000	$ 0.40
		15000	$ 0.39
TME	N/A	3	$ 0.68
		10	$ 0.64
		25	$ 0.58
		100	$ 0.55
Verical	N/A	1	$ 0.57
		3	$ 0.68
		10	$ 0.64
		11	$ 0.52
		25	$ 0.51
		25	$ 0.58
		97	$ 0.83
		100	$ 0.46
		100	$ 0.29
		100	$ 0.50
		100	$ 0.55
		100	$ 0.51
		200	$ 0.65
		300	$ 0.46
		300	$ 0.60
		500	$ 0.28
		500	$ 0.47
		1000	$ 0.27
		1000	$ 0.44
		1000	$ 0.57
		1000	$ 0.46
		2500	$ 0.42
		2500	$ 0.55
		5000	$ 0.41
		5000	$ 0.54
		7500	$ 0.41
		10000	$ 0.40
		15000	$ 0.39

25LC040 Series

4Kb 2.5V SPI Serial EEPROM

Part	Write Cycle Time - Word, Page	Memory Type	Memory Format	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Voltage - Supply [Min]	Voltage - Supply [Max]	Memory Size	Clock Frequency	Memory Organization [custom]	Memory Organization [custom]	Memory Interface	Mounting Type	Package / Case	Package / Case	Technology	Package / Case	Qualification	Grade
Microchip Technology 25LC040/SN EEPROM Memory IC 4Kbit SPI 2 MHz 8-SOIC	5 ms	Non-Volatile	EEPROM	70 °C	0 °C	8-SOIC	2.5 V	5.5 V	512 B	2 MHz	512	8	SPI	Surface Mount	3.9 mm	8-SOIC	EEPROM
Microchip Technology 25LC040A-E/MS The Microchip 25LC040A is a 4 Kb Serial EEPROM utilizing the industry standard Serial Peripheral Interface (SPI) compatible serial bus. The device is organized as one block of 512 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 and memory array. The EEPROM is available in a variety of space-saving packaging options.	5 ms	Non-Volatile	EEPROM	125 °C	-40 °C	8-MSOP	2.5 V	5.5 V	512 B	10 MHz	512	8	SPI	Surface Mount	0.118 in	8-MSOP, 8-TSSOP	EEPROM	3 mm
Microchip Technology 25LC040AT-E/OT16KVAO The Microchip 25LC040A is a 4 Kb Serial EEPROM utilizing the industry standard Serial Peripheral Interface (SPI) compatible serial bus. The device is organized as one block of 512 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 and memory array. The EEPROM is available in a variety of space-saving packaging options.	5 ms	Non-Volatile	EEPROM	125 °C	-40 °C	SOT-23-6	2.5 V	5.5 V	512 B	10 MHz	512	8	SPI	Surface Mount		SOT-23-6	EEPROM		AEC-Q100	Automotive
Microchip Technology 25LC040A-M/P EEPROM Memory IC 4Kbit SPI 10 MHz 8-PDIP	5 ms	Non-Volatile	EEPROM	125 °C	-55 C	8-PDIP	2.5 V	5.5 V	512 B	10 MHz	512	8	SPI	Through Hole	0.3 in	8-DIP	EEPROM	7.62 mm
Microchip Technology 25LC040A-I/ST The Microchip 25LC040A is a 4 Kb Serial EEPROM utilizing the industry standard Serial Peripheral Interface (SPI) compatible serial bus. The device is organized as one block of 512 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 and memory array. The EEPROM is available in a variety of space-saving packaging options.	5 ms	Non-Volatile	EEPROM	85 °C	-40 °C	8-TSSOP	2.5 V	5.5 V	512 B	10 MHz	512	8	SPI	Surface Mount		8-TSSOP (0.173", 4.40mm Width)	EEPROM
Microchip Technology 25LC040AT-I/MS The Microchip 25LC040A is a 4 Kb Serial EEPROM utilizing the industry standard Serial Peripheral Interface (SPI) compatible serial bus. The device is organized as one block of 512 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 and memory array. The EEPROM is available in a variety of space-saving packaging options.	5 ms	Non-Volatile	EEPROM	85 °C	-40 °C	8-MSOP	2.5 V	5.5 V	512 B	10 MHz	512	8	SPI	Surface Mount	0.118 in	8-MSOP, 8-TSSOP	EEPROM	3 mm
Microchip Technology 25LC040AT-I/MC The Microchip 25LC040A is a 4 Kb Serial EEPROM utilizing the industry standard Serial Peripheral Interface (SPI) compatible serial bus. The device is organized as one block of 512 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 and memory array. The EEPROM is available in a variety of space-saving packaging options.	5 ms	Non-Volatile	EEPROM	85 °C	-40 °C	8-DFN (2x3)	2.5 V	5.5 V	512 B	10 MHz	512	8	SPI	Surface Mount		8-VFDFN Exposed Pad	EEPROM
Microchip Technology 25LC040/P EEPROM Memory IC 4Kbit SPI 2 MHz 8-PDIP	5 ms	Non-Volatile	EEPROM	70 °C	0 °C	8-PDIP	2.5 V	5.5 V	512 B	2 MHz	512	8	SPI	Through Hole	0.3 in	8-DIP	EEPROM	7.62 mm
Microchip Technology 25LC040AT-I/OT The Microchip 25LC040A is a 4 Kb Serial EEPROM utilizing the industry standard Serial Peripheral Interface (SPI) compatible serial bus. The device is organized as one block of 512 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 and memory array. The EEPROM is available in a variety of space-saving packaging options.	5 ms	Non-Volatile	EEPROM	85 °C	-40 °C	SOT-23-6	2.5 V	5.5 V	512 B	10 MHz	512	8	SPI	Surface Mount		SOT-23-6	EEPROM
Microchip Technology 25LC040A-E/SN The Microchip 25LC040A is a 4 Kb Serial EEPROM utilizing the industry standard Serial Peripheral Interface (SPI) compatible serial bus. The device is organized as one block of 512 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 and memory array. The EEPROM is available in a variety of space-saving packaging options.	5 ms	Non-Volatile	EEPROM	125 °C	-40 °C	8-SOIC	2.5 V	5.5 V	512 B	10 MHz	512	8	SPI	Surface Mount	3.9 mm	8-SOIC	EEPROM
Microchip Technology 25LC040AT-E/MS The Microchip 25LC040A is a 4 Kb Serial EEPROM utilizing the industry standard Serial Peripheral Interface (SPI) compatible serial bus. The device is organized as one block of 512 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 and memory array. The EEPROM is available in a variety of space-saving packaging options.	5 ms	Non-Volatile	EEPROM	125 °C	-40 °C	8-MSOP	2.5 V	5.5 V	512 B	10 MHz	512	8	SPI	Surface Mount	0.118 in	8-MSOP, 8-TSSOP	EEPROM	3 mm
Microchip Technology 25LC040A-M/SN EEPROM Memory IC 4Kbit SPI 10 MHz 8-SOIC	5 ms	Non-Volatile	EEPROM	125 °C	-55 C	8-SOIC	2.5 V	5.5 V	512 B	10 MHz	512	8	SPI	Surface Mount	3.9 mm	8-SOIC	EEPROM
Microchip Technology 25LC040XT/ST EEPROM Memory IC 4Kbit SPI 2 MHz 8-TSSOP	5 ms	Non-Volatile	EEPROM	70 °C	0 °C	8-TSSOP	2.5 V	5.5 V	512 B	2 MHz	512	8	SPI	Surface Mount		8-TSSOP (0.173", 4.40mm Width)	EEPROM
Microchip Technology 25LC040AT-E/MC The Microchip 25LC040A is a 4 Kb Serial EEPROM utilizing the industry standard Serial Peripheral Interface (SPI) compatible serial bus. The device is organized as one block of 512 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 and memory array. The EEPROM is available in a variety of space-saving packaging options.	5 ms	Non-Volatile	EEPROM	125 °C	-40 °C	8-DFN (2x3)	2.5 V	5.5 V	512 B	10 MHz	512	8	SPI	Surface Mount		8-VFDFN Exposed Pad	EEPROM
Microchip Technology 25LC040AT-E/SN16KVAO The Microchip 25LC040A is a 4 Kb Serial EEPROM utilizing the industry standard Serial Peripheral Interface (SPI) compatible serial bus. The device is organized as one block of 512 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 and memory array. The EEPROM is available in a variety of space-saving packaging options.	5 ms	Non-Volatile	EEPROM	125 °C	-40 °C	8-SOIC	2.5 V	5.5 V	512 B	10 MHz	512	8	SPI	Surface Mount	3.9 mm	8-SOIC	EEPROM		AEC-Q100	Automotive
Microchip Technology 25LC040A-I/SN The Microchip 25LC040A is a 4 Kb Serial EEPROM utilizing the industry standard Serial Peripheral Interface (SPI) compatible serial bus. The device is organized as one block of 512 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 and memory array. The EEPROM is available in a variety of space-saving packaging options.	5 ms	Non-Volatile	EEPROM	85 °C	-40 °C	8-SOIC	2.5 V	5.5 V	512 B	10 MHz	512	8	SPI	Surface Mount	3.9 mm	8-SOIC	EEPROM
Microchip Technology 25LC040T/SN EEPROM Memory IC 4Kbit SPI 2 MHz 8-SOIC	5 ms	Non-Volatile	EEPROM	70 °C	0 °C	8-SOIC	2.5 V	5.5 V	512 B	2 MHz	512	8	SPI	Surface Mount	3.9 mm	8-SOIC	EEPROM
Microchip Technology 25LC040AXT-E/ST EEPROM Memory IC 4Kbit SPI 10 MHz 8-TSSOP	5 ms	Non-Volatile	EEPROM	125 °C	-40 °C	8-TSSOP	2.5 V	5.5 V	512 B	10 MHz	512	8	SPI	Surface Mount		8-TSSOP (0.173", 4.40mm Width)	EEPROM
Microchip Technology 25LC040A-H/SN The Microchip 25LC040A is a 4 Kb Serial EEPROM utilizing the industry standard Serial Peripheral Interface (SPI) compatible serial bus. The device is organized as one block of 512 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 and memory array. The EEPROM is available in a variety of space-saving packaging options.	5 ms	Non-Volatile	EEPROM	150 °C	-40 °C	8-SOIC	2.5 V	5.5 V	512 B	10 MHz	512	8	SPI	Surface Mount	3.9 mm	8-SOIC	EEPROM
Microchip Technology 25LC040-I/P EEPROM Memory IC 4Kbit SPI 2 MHz 8-PDIP	5 ms	Non-Volatile	EEPROM	85 °C	-40 °C	8-PDIP	2.5 V	5.5 V	512 B	2 MHz	512	8	SPI	Through Hole	0.3 in	8-DIP	EEPROM	7.62 mm
Microchip Technology 25LC040AT-H/SN The Microchip 25LC040A is a 4 Kb Serial EEPROM utilizing the industry standard Serial Peripheral Interface (SPI) compatible serial bus. The device is organized as one block of 512 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 and memory array. The EEPROM is available in a variety of space-saving packaging options.	5 ms	Non-Volatile	EEPROM	150 °C	-40 °C	8-SOIC	2.5 V	5.5 V	512 B	10 MHz	512	8	SPI	Surface Mount	3.9 mm	8-SOIC	EEPROM
Microchip Technology 25LC040A-I/MS The Microchip 25LC040A is a 4 Kb Serial EEPROM utilizing the industry standard Serial Peripheral Interface (SPI) compatible serial bus. The device is organized as one block of 512 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 and memory array. The EEPROM is available in a variety of space-saving packaging options.	5 ms	Non-Volatile	EEPROM	85 °C	-40 °C	8-MSOP	2.5 V	5.5 V	512 B	10 MHz	512	8	SPI	Surface Mount	0.118 in	8-MSOP, 8-TSSOP	EEPROM	3 mm
Microchip Technology 25LC040A-E/ST The Microchip 25LC040A is a 4 Kb Serial EEPROM utilizing the industry standard Serial Peripheral Interface (SPI) compatible serial bus. The device is organized as one block of 512 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 and memory array. The EEPROM is available in a variety of space-saving packaging options.	5 ms	Non-Volatile	EEPROM	125 °C	-40 °C	8-TSSOP	2.5 V	5.5 V	512 B	10 MHz	512	8	SPI	Surface Mount		8-TSSOP (0.173", 4.40mm Width)	EEPROM
Microchip Technology 25LC040AX-I/ST The Microchip 25LC040A is a 4 Kb Serial EEPROM utilizing the industry standard Serial Peripheral Interface (SPI) compatible serial bus. The device is organized as one block of 512 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 and memory array. The EEPROM is available in a variety of space-saving packaging options.	5 ms	Non-Volatile	EEPROM	85 °C	-40 °C	8-TSSOP	2.5 V	5.5 V	512 B	10 MHz	512	8	SPI	Surface Mount		8-TSSOP (0.173", 4.40mm Width)	EEPROM
Microchip Technology 25LC040AT-I/ST The Microchip 25LC040A is a 4 Kb Serial EEPROM utilizing the industry standard Serial Peripheral Interface (SPI) compatible serial bus. The device is organized as one block of 512 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 and memory array. The EEPROM is available in a variety of space-saving packaging options.	5 ms	Non-Volatile	EEPROM	85 °C	-40 °C	8-TSSOP	2.5 V	5.5 V	512 B	10 MHz	512	8	SPI	Surface Mount		8-TSSOP (0.173", 4.40mm Width)	EEPROM
Microchip Technology 25LC040AT-M/SN EEPROM Memory IC 4Kbit SPI 10 MHz 8-SOIC	5 ms	Non-Volatile	EEPROM	125 °C	-55 C	8-SOIC	2.5 V	5.5 V	512 B	10 MHz	512	8	SPI	Surface Mount	3.9 mm	8-SOIC	EEPROM
Microchip Technology 25LC040A-E/P The Microchip 25LC040A is a 4 Kb Serial EEPROM utilizing the industry standard Serial Peripheral Interface (SPI) compatible serial bus. The device is organized as one block of 512 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 and memory array. The EEPROM is available in a variety of space-saving packaging options.	5 ms	Non-Volatile	EEPROM	125 °C	-40 °C	8-PDIP	2.5 V	5.5 V	512 B	10 MHz	512	8	SPI	Through Hole	0.3 in	8-DIP	EEPROM	7.62 mm
Microchip Technology 25LC040AX-E/ST EEPROM Memory IC 4Kbit SPI 10 MHz 8-TSSOP	5 ms	Non-Volatile	EEPROM	125 °C	-40 °C	8-TSSOP	2.5 V	5.5 V	512 B	10 MHz	512	8	SPI	Surface Mount		8-TSSOP (0.173", 4.40mm Width)	EEPROM
Microchip Technology 25LC040XT-I/ST EEPROM Memory IC 4Kbit SPI 2 MHz 8-TSSOP	5 ms	Non-Volatile	EEPROM	85 °C	-40 °C	8-TSSOP	2.5 V	5.5 V	512 B	2 MHz	512	8	SPI	Surface Mount		8-TSSOP (0.173", 4.40mm Width)	EEPROM
Microchip Technology 25LC040-I/SN EEPROM Memory IC 4Kbit SPI 2 MHz 8-SOIC	5 ms	Non-Volatile	EEPROM	85 °C	-40 °C	8-SOIC	2.5 V	5.5 V	512 B	2 MHz	512	8	SPI	Surface Mount	3.9 mm	8-SOIC	EEPROM
Microchip Technology 25LC040AT-E/OT EEPROM Memory IC 4Kbit SPI 10 MHz SOT-23-6	5 ms	Non-Volatile	EEPROM	125 °C	-40 °C	SOT-23-6	2.5 V	5.5 V	512 B	10 MHz	512	8	SPI	Surface Mount		SOT-23-6	EEPROM
Microchip Technology 25LC040T-I/SN EEPROM Memory IC 4Kbit SPI 2 MHz 8-SOIC	5 ms	Non-Volatile	EEPROM	85 °C	-40 °C	8-SOIC	2.5 V	5.5 V	512 B	2 MHz	512	8	SPI	Surface Mount	3.9 mm	8-SOIC	EEPROM
Microchip Technology 25LC040A-I/P The Microchip 25LC040A is a 4 Kb Serial EEPROM utilizing the industry standard Serial Peripheral Interface (SPI) compatible serial bus. The device is organized as one block of 512 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 and memory array. The EEPROM is available in a variety of space-saving packaging options.	5 ms	Non-Volatile	EEPROM	85 °C	-40 °C	8-PDIP	2.5 V	5.5 V	512 B	10 MHz	512	8	SPI	Through Hole	0.3 in	8-DIP	EEPROM	7.62 mm
Microchip Technology 25LC040AXT-I/ST EEPROM Memory IC 4Kbit SPI 10 MHz 8-TSSOP	5 ms	Non-Volatile	EEPROM	85 °C	-40 °C	8-TSSOP	2.5 V	5.5 V	512 B	10 MHz	512	8	SPI	Surface Mount		8-TSSOP (0.173", 4.40mm Width)	EEPROM
Microchip Technology 25LC040AT-E/ST The Microchip 25LC040A is a 4 Kb Serial EEPROM utilizing the industry standard Serial Peripheral Interface (SPI) compatible serial bus. The device is organized as one block of 512 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 and memory array. The EEPROM is available in a variety of space-saving packaging options.	5 ms	Non-Volatile	EEPROM	125 °C	-40 °C	8-TSSOP	2.5 V	5.5 V	512 B	10 MHz	512	8	SPI	Surface Mount		8-TSSOP (0.173", 4.40mm Width)	EEPROM