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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 (CLP) Filter the results in the table by unit price based on your quantity.	Qty.	Memory Size	Interface Type	Maximum Clock Frequency	Organization	Package / Case	Access Time	Supply Voltage - Min	Supply Voltage - Max	Mounting Style	Data Retention	Minimum Operating Temperature	Maximum Operating Temperature	Series	Qualification	Packaging
EEPROM 1K (128 X 8) SPI, 1.8V AT25010B-MAHL-T Microchip Technology 1: $384 6.886In Stock	Mfr. Part # AT25010B-MAHL-T Mouser Part # 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 $384 $374 $370 Reel $351 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 1.8-5.5V, 20MHz, Ind Tmp, 8-UDFN AT25128B-MAHL-E Microchip Technology 1: $900 9.332In Stock	Mfr. Part # AT25128B-MAHL-E Mouser Part # 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	9.332In Stock	Cut Tape $900 $890 Reel $890 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-SSHL-T Microchip Technology 1: $340 Lead-Time 10 Weeks	Mfr. Part # AT25010B-SSHL-T Mouser Part # 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	Lead-Time 10 Weeks	Cut Tape $340 $336 Reel $304 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-B Microchip Technology 1: $593 3.129In Stock	Mfr. Part # AT25640B-SSHL-B Mouser Part # 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	3.129In Stock	$593 $571 $560 $549	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 64K Density SPI 8,192 x 8 Organ AT25640B-XHL-T Microchip Technology 1: $659 5.288In Stock	Mfr. Part # AT25640B-XHL-T Mouser Part # 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	5.288In Stock	Cut Tape $659 $655 Reel $608 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 128K Density SPI 16,384 x 8 Organ AT25128B-SSHL-B Microchip Technology 1: $791 4.268In Stock	Mfr. Part # AT25128B-SSHL-B Mouser Part # 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	4.268In Stock	$791 $769 $736	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: $845 8.488In Stock	Mfr. Part # AT25128B-SSHL-T Mouser Part # 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	8.488In Stock	Cut Tape $845 $842 $840 Reel $784 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: $329 460In Stock	Mfr. Part # AT25010B-SSHL-B Mouser Part # 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	460In Stock	$329 $328 $316 $304	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: $351 319In Stock	Mfr. Part # AT25010B-XHL-B Mouser Part # 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	$351 $339 $328	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: $812 1.195In Stock	Mfr. Part # AT25128B-XHL-B Mouser Part # 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	1.195In Stock	$812 $800 $756 $747	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: $659 385In Stock 700Expected 1/1/2027	Mfr. Part # AT25640B-XHL-B Mouser Part # 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 1/1/2027	$659 $655 $632 $620 $608	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-SSHL-T Microchip Technology 1: $648 7.922Expected 12/25/2026	Mfr. Part # AT25640B-SSHL-T Mouser Part # 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	7.922Expected 12/25/2026	Cut Tape $648 $639 Reel $585 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: $328 Non-Stocked Lead-Time 9 Weeks	Mfr. Part # AT25010B-XHL-T Mouser Part # 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 $328	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: $796 Lead-Time 10 Weeks	Mfr. Part # AT25128B-XHL-T Mouser Part # 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 $796	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: $632 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # AT25640B-MAHL-T Mouser Part # 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 $632	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: $370 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # AT25010B-MAHL-E Mouser Part # 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 $370	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: $410 Non-Stocked Lead-Time 9 Weeks	Mfr. Part # AT25010B-SSPD-T Mouser Part # 579-AT25010B-SSPD-T	Microchip Technology	EEPROM 5MHz, Auto Grade, 8-SOIC-N	Datasheet	Non-Stocked Lead-Time 9 Weeks	Reel $410	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: $410 Non-Stocked Lead-Time 8 Weeks	Mfr. Part # AT25010B-XPD-T Mouser Part # 579-AT25010B-XPD-T	Microchip Technology	EEPROM 5MHz, Auto Temp, 8-TSSOP	Datasheet	Non-Stocked Lead-Time 8 Weeks	Reel $410	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: $1.088 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # AT25128B-XPDGV-T Mouser Part # 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 $1.088	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: $692 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # AT25640B-MAHL-E Mouser Part # 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 $692 $690 Reel $632	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: $819 Non-Stocked Lead-Time 13 Weeks	Mfr. Part # AT25128B-MAHL-T Mouser Part # 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 $819	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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