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AT25x SPI Serial EEPROMs

Microchip Technology AT25x SPI Serial EEPROMs are designed for use in applications where low-power and low-voltage operations are essential. These EEPROMs feature block write protection, 20MHz clock cycle, self-timed write cycle, write protect pin, and write disable instructions. The AT25x EEPROMs are enabled through the Chip Select pin (CS) and accessed via a 3-wire interface. This 3-wire interface consists of Serial Clock (SCK), Serial Data Input (SI), and Serial Data Output (SO).

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.	Memory Size	Interface Type	Maximum Clock Frequency	Organisation	Package/Case	Access Time	Supply Voltage - Min	Supply Voltage - Max	Mounting Style	Data Retention	Minimum Operating Temperature	Maximum Operating Temperature	Series	Qualification	Packaging
EEPROM 1.8-5.5V, 20MHz, Ind Tmp, 8-UDFN AT25128B-MAHL-E Microchip Technology 1: €0.611 9,176In Stock	Mfr. Part No. AT25128B-MAHL-E Mouser Part No 579-AT25128B-MAHL-E	Microchip Technology	EEPROM 1.8-5.5V, 20MHz, Ind Tmp, 8-UDFN Learn More about Microchip Technology microchip at25x spi serial eeproms	Datasheet	9,176In Stock	Cut Tape €0.611 €0.608 Reel €0.608 MouseReel Available	Min.: 1 Mult.: 1 : 15,000	128 kbit	3-Wire, SPI	20 MHz	16 k x 8	UDFN-8	80 ns	1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	AT25128B		Reel, Cut Tape, MouseReel
EEPROM 1K (128 X 8) SPI, 1.8V AT25010B-MAHL-T Microchip Technology 1: €0.292 6,886In Stock	Mfr. Part No. AT25010B-MAHL-T Mouser Part No 556-AT25010B-MAHL-T	Microchip Technology	EEPROM 1K (128 X 8) SPI, 1.8V Learn More about Microchip Technology microchip at25x spi serial eeproms	Datasheet	6,886In Stock	Cut Tape €0.292 €0.29 €0.273 Reel €0.256 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	1 kbit	3-Wire, SPI	20 MHz	128 x 8	UDFN-8	80 ns	1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	AT25010B		Reel, Cut Tape, MouseReel
EEPROM 64K Density SPI 8,192 x 8 Organ AT25640B-SSHL-B Microchip Technology 1: €0.464 2,722In Stock	Mfr. Part No. AT25640B-SSHL-B Mouser Part No 556-AT25640B-SSHL-B	Microchip Technology	EEPROM 64K Density SPI 8,192 x 8 Organ Learn More about Microchip Technology microchip at25x spi serial eeproms	Datasheet	2,722In Stock	€0.464 €0.447 €0.439 €0.43	Min.: 1 Mult.: 1	64 kbit	3-Wire, SPI	20 MHz	8 k x 8	SOIC-Narrow-8	80 ns	1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	AT25640B		Tube
EEPROM 128K Density SPI 16,384 x 8 Organ AT25128B-SSHL-B Microchip Technology 1: €0.619 4,230In Stock	Mfr. Part No. AT25128B-SSHL-B Mouser Part No 556-AT25128B-SSHL-B	Microchip Technology	EEPROM 128K Density SPI 16,384 x 8 Organ Learn More about Microchip Technology microchip at25x spi serial eeproms	Datasheet	4,230In Stock	€0.619 €0.602 €0.576	Min.: 1 Mult.: 1	128 kbit	3-Wire, SPI	20 MHz	16 k x 8	SOIC-Narrow-8	80 ns	1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	AT25128B		Tube
EEPROM 128K Density SPI 16,384 x 8 Organ AT25128B-SSHL-T Microchip Technology 1: €0.662 8,360In Stock	Mfr. Part No. AT25128B-SSHL-T Mouser Part No 556-AT25128B-SSHL-T	Microchip Technology	EEPROM 128K Density SPI 16,384 x 8 Organ Learn More about Microchip Technology microchip at25x spi serial eeproms	Datasheet	8,360In Stock	Cut Tape €0.662 €0.66 €0.658 Reel €0.614 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	128 kbit	3-Wire, SPI	20 MHz	16 k x 8	SOIC-Narrow-8	80 ns	1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	AT25128B		Reel, Cut Tape, MouseReel
EEPROM 1K (128 X 8) SPI, 1.8V AT25010B-SSHL-B Microchip Technology 1: €0.258 109In Stock 1,300Expected 17/12/2026	Mfr. Part No. AT25010B-SSHL-B Mouser Part No 556-AT25010B-SSHL-B	Microchip Technology	EEPROM 1K (128 X 8) SPI, 1.8V Learn More about Microchip Technology microchip at25x spi serial eeproms	Datasheet	109In Stock 1,300Expected 17/12/2026	€0.258 €0.257 €0.248 €0.238	Min.: 1 Mult.: 1	1 kbit	3-Wire, SPI	20 MHz	128 x 8	SOIC-Narrow-8	80 ns	1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	AT25010B		Tube
EEPROM 1K (128 X 8) SPI, 1.8V AT25010B-XHL-B Microchip Technology 1: €0.275 319In Stock	Mfr. Part No. AT25010B-XHL-B Mouser Part No 556-AT25010B-XHL-B	Microchip Technology	EEPROM 1K (128 X 8) SPI, 1.8V Learn More about Microchip Technology microchip at25x spi serial eeproms	Datasheet	319In Stock	€0.275 €0.266 €0.257	Min.: 1 Mult.: 1	1 kbit	3-Wire, SPI	20 MHz	128 x 8	TSSOP-8	80 ns	1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	AT25010B		Tube
EEPROM 128K Density SPI 16,384 x 8 Organ AT25128B-XHL-B Microchip Technology 1: €0.636 813In Stock	Mfr. Part No. AT25128B-XHL-B Mouser Part No 556-AT25128B-XHL-B	Microchip Technology	EEPROM 128K Density SPI 16,384 x 8 Organ Learn More about Microchip Technology microchip at25x spi serial eeproms	Datasheet	813In Stock	€0.636 €0.627 €0.593 €0.585	Min.: 1 Mult.: 1	128 kbit	3-Wire, SPI	20 MHz	16 k x 8	TSSOP-8	80 ns	1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	AT25128B		Tube
EEPROM 64K Density SPI 8,192 x 8 Organ AT25640B-XHL-B Microchip Technology 1: €0.516 385In Stock 700Expected 01/01/2027	Mfr. Part No. AT25640B-XHL-B Mouser Part No 556-AT25640B-XHL-B	Microchip Technology	EEPROM 64K Density SPI 8,192 x 8 Organ Learn More about Microchip Technology microchip at25x spi serial eeproms	Datasheet	385In Stock 700Expected 01/01/2027	€0.516 €0.513 €0.495 €0.486 €0.476	Min.: 1 Mult.: 1	64 kbit	3-Wire, SPI	5 MHz	8 k x 8	TSSOP-8	80 ns	1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	AT25640B		Tube
EEPROM 64K Density SPI 8,192 x 8 Organ AT25640B-XHL-T Microchip Technology 1: €0.516 1,456In Stock 20,000On Order	Mfr. Part No. AT25640B-XHL-T Mouser Part No 556-AT25640B-XHL-T	Microchip Technology	EEPROM 64K Density SPI 8,192 x 8 Organ Learn More about Microchip Technology microchip at25x spi serial eeproms	Datasheet	1,456In Stock 20,000On Order On Order Ship Dates Mfr. No: AT25640B-XHL-T Stock: 1,456 Can Dispatch Immediately On Order: 15,000 Expected 01/01/2027 5,000 Expected 12/04/2027 Factory Lead Time: 10 Weeks	Cut Tape €0.516 €0.513 Reel €0.476 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	64 kbit	3-Wire, SPI	20 MHz	8 k x 8	TSSOP-8	80 ns	1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	AT25640B		Reel, Cut Tape, MouseReel
EEPROM 1K (128 X 8) SPI, 1.8V AT25010B-SSHL-T Microchip Technology 1: €0.267 40,000On Order	Mfr. Part No. AT25010B-SSHL-T Mouser Part No 556-AT25010B-SSHL-T	Microchip Technology	EEPROM 1K (128 X 8) SPI, 1.8V Learn More about Microchip Technology microchip at25x spi serial eeproms	Datasheet	40,000On Order On Order Ship Dates Mfr. No: AT25010B-SSHL-T Stock: 0 On Order: 8,000 Expected 23/11/2026 12,000 Expected 16/03/2027 20,000 Expected 09/04/2027 Factory Lead Time: 10 Weeks	Cut Tape €0.267 Reel €0.238 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	1 kbit	3-Wire, SPI	20 MHz	128 x 8	SOIC-Narrow-8	80 ns	1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	AT25010B		Reel, Cut Tape, MouseReel
EEPROM 64K Density SPI 8,192 x 8 Organ AT25640B-SSHL-T Microchip Technology 1: €0.507 7,822Expected 25/12/2026	Mfr. Part No. AT25640B-SSHL-T Mouser Part No 556-AT25640B-SSHL-T	Microchip Technology	EEPROM 64K Density SPI 8,192 x 8 Organ Learn More about Microchip Technology microchip at25x spi serial eeproms	Datasheet	7,822Expected 25/12/2026	Cut Tape €0.507 €0.501 Reel €0.458 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	64 kbit	3-Wire, SPI	20 MHz	8 k x 8	SOIC-Narrow-8	80 ns	1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	AT25640B		Reel, Cut Tape, MouseReel
EEPROM 1K (128 X 8) SPI, 1.8V AT25010B-XHL-T Microchip Technology 5,000: €0.257 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. AT25010B-XHL-T Mouser Part No 556-AT25010B-XHL-T	Microchip Technology	EEPROM 1K (128 X 8) SPI, 1.8V Learn More about Microchip Technology microchip at25x spi serial eeproms	Datasheet	Non-Stocked Lead-Time 9 Weeks	Reel €0.257	Min.: 5,000 Mult.: 5,000 : 5,000	1 kbit	3-Wire, SPI	20 MHz	128 x 8	TSSOP-8	80 ns	1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	AT25010B		Reel
EEPROM 128K Density SPI 16,384 x 8 Organ AT25128B-XHL-T Microchip Technology 5,000: €0.624 Lead-Time 10 Weeks	Mfr. Part No. AT25128B-XHL-T Mouser Part No 556-AT25128B-XHL-T	Microchip Technology	EEPROM 128K Density SPI 16,384 x 8 Organ Learn More about Microchip Technology microchip at25x spi serial eeproms	Datasheet	Lead-Time 10 Weeks	Reel €0.624	Min.: 5,000 Mult.: 5,000 : 5,000	128 kbit	3-Wire, SPI	20 MHz	16 k x 8	TSSOP-8		1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	AT25128B		Reel
EEPROM 64K Density SPI 8,192 x 8 Organ AT25640B-MAHL-T Microchip Technology 5,000: €0.495 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. AT25640B-MAHL-T Mouser Part No 556-AT25640B-MAHL-T	Microchip Technology	EEPROM 64K Density SPI 8,192 x 8 Organ Learn More about Microchip Technology microchip at25x spi serial eeproms	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel €0.495	Min.: 5,000 Mult.: 5,000 : 5,000	64 kbit	3-Wire, SPI	20 MHz	8 k x 8	UDFN-8		1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	AT25640B		Reel
EEPROM 1.8-5.5V, 20MHz, Ind Tmp, 8-UDFN AT25010B-MAHL-E Microchip Technology 15,000: €0.265 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. AT25010B-MAHL-E Mouser Part No 579-AT25010B-MAHL-E	Microchip Technology	EEPROM 1.8-5.5V, 20MHz, Ind Tmp, 8-UDFN Learn More about Microchip Technology microchip at25x spi serial eeproms	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel €0.265	Min.: 15,000 Mult.: 15,000 : 15,000	1 kbit	3-Wire, SPI	20 MHz	128 x 8	UDFN-8	80 ns	1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	AT25010B		Reel
EEPROM 5MHz, Auto Grade, 8-SOIC-N AT25010B-SSPD-T Microchip Technology 4,000: €0.321 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. AT25010B-SSPD-T Mouser Part No 579-AT25010B-SSPD-T	Microchip Technology	EEPROM 5MHz, Auto Grade, 8-SOIC-N	Datasheet	Non-Stocked Lead-Time 9 Weeks	Reel €0.321	Min.: 4,000 Mult.: 4,000 : 4,000	1 kbit	SPI	5 MHz	128 x 8	SOIC-Narrow-8		2.5 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 125 C	AT25010B	AEC-Q100	Reel
EEPROM 5MHz, Auto Temp, 8-TSSOP AT25010B-XPD-T Microchip Technology 5,000: €0.321 Non-Stocked Lead-Time 8 Weeks	Mfr. Part No. AT25010B-XPD-T Mouser Part No 579-AT25010B-XPD-T	Microchip Technology	EEPROM 5MHz, Auto Temp, 8-TSSOP	Datasheet	Non-Stocked Lead-Time 8 Weeks	Reel €0.321	Min.: 5,000 Mult.: 5,000 : 5,000	1 kbit	SPI	5 MHz	128 x 8	TSSOP-8		2.5 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 125 C	AT25010B	AEC-Q100	Reel
EEPROM 2.5-5.5v, 5MHz, A-Tmp, 8-TSSOP AT25128B-XPDGV-T Microchip Technology 5,000: €0.852 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. AT25128B-XPDGV-T Mouser Part No 579-AT25128B-XPDGV-T	Microchip Technology	EEPROM 2.5-5.5v, 5MHz, A-Tmp, 8-TSSOP Learn More about Microchip Technology microchip infotainment	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel €0.852	Min.: 5,000 Mult.: 5,000 : 5,000	128 kbit	SPI	5 MHz	16 k x 8	TSSOP-8		2.5 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 125 C	AT25128B	AEC-Q100	Reel
EEPROM 1.8-5.5V, 20MHz, Ind Tmp, 8-UDFN AT25640B-MAHL-E Microchip Technology 1: €0.542 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. AT25640B-MAHL-E Mouser Part No 579-AT25640B-MAHL-E	Microchip Technology	EEPROM 1.8-5.5V, 20MHz, Ind Tmp, 8-UDFN Learn More about Microchip Technology microchip at25x spi serial eeproms	Datasheet	Non-Stocked Lead-Time 12 Weeks	Cut Tape €0.542 €0.54 €0.538 €0.537 View Reel €0.493 €0.534 €0.531 €0.493	Min.: 1 Mult.: 1 : 5,000	64 kbit	SPI	20 MHz	8 k x 8	UDFN-8		1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	AT25640B		Reel, Cut Tape
EEPROM 128K Density SPI 16,384 x 8 Organ AT25128B-MAHL-T Microchip Technology 5,000: €0.642 Non-Stocked Lead-Time 13 Weeks	Mfr. Part No. AT25128B-MAHL-T Mouser Part No 556-AT25128B-MAHL-T	Microchip Technology	EEPROM 128K Density SPI 16,384 x 8 Organ Learn More about Microchip Technology microchip at25x spi serial eeproms	Datasheet	Non-Stocked Lead-Time 13 Weeks	Reel €0.642	Min.: 5,000 Mult.: 5,000 : 5,000	128 kbit	3-Wire, SPI	20 MHz	16 k x 8	UDFN-8	80 ns	1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	AT25128B		Reel

AT25x SPI Serial EEPROMs

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AT25x SPI Serial EEPROMs

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