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CAT25x SPI Serial EEPROMs

onsemi CAT25x SPI Serial EEPROMs feature a 64-byte or 128-byte page write buffer and support the Serial Peripheral Interface (SPI) protocol. These devices are enabled through a Chip Select (CS) input. In addition, the required bus signals are data input (SI), clock input (SCK), and data output (SO) lines. The onsemi CAT25x device's HOLD input may be used to pause any serial communication. These devices feature software and hardware write protection, including partial and full array protection. The on-chip ECC (Error Correction Code) makes the device suitable for high-reliability applications.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CHF) 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	Packaging
EEPROM 512KB SPI SER CMOS EEPROM CAT25512HU5I-GT3 onsemi 1: CHF 0.789 4’639In Stock	Mfr. Part No. CAT25512HU5I-GT3 Mouser Part No 863-CAT25512HU5I-GT3	onsemi	EEPROM 512KB SPI SER CMOS EEPROM Learn More about onsemi cat25x spi serial eeproms	Datasheet	4’639In Stock	Cut Tape CHF 0.789 CHF 0.757 CHF 0.746 CHF 0.703 View Reel CHF 0.565 CHF 0.687 CHF 0.666 CHF 0.652 CHF 0.632 CHF 0.565 MouseReel Available	Min.: 1 Mult.: 1 : 3’000	512 kbit	3-Wire, SPI	20 MHz	64 k x 8	UDFN-8	75 ns	1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	CAT25512	Reel, Cut Tape, MouseReel
EEPROM 256K SPI Serial CMOS EEPROM CAT25256XI-T2 onsemi 1: CHF 0.885 2’703In Stock	Mfr. Part No. CAT25256XI-T2 Mouser Part No 698-CAT25256XI-T2	onsemi	EEPROM 256K SPI Serial CMOS EEPROM Learn More about onsemi cat25x spi serial eeproms	Datasheet	2’703In Stock	Cut Tape CHF 0.885 CHF 0.829 CHF 0.787 CHF 0.778 View Reel CHF 0.583 CHF 0.768 CHF 0.745 CHF 0.727 CHF 0.638 CHF 0.583 MouseReel Available	Min.: 1 Mult.: 1 : 2’000	256 kbit	3-Wire, SPI	5 MHz	32 k x 8	SOIC-8	75 ns	1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	CAT25256	Reel, Cut Tape, MouseReel
EEPROM 128K SPI Serial CMOS EEPROM CAT25128YI-GT3 onsemi 1: CHF 0.548 13’601In Stock	Mfr. Part No. CAT25128YI-GT3 Mouser Part No 698-CAT25128YI-GT3	onsemi	EEPROM 128K SPI Serial CMOS EEPROM Learn More about onsemi cat25x spi serial eeproms	Datasheet	13’601In Stock	Cut Tape CHF 0.548 CHF 0.528 CHF 0.52 CHF 0.49 View Reel CHF 0.385 CHF 0.479 CHF 0.464 CHF 0.454 CHF 0.399 CHF 0.385 MouseReel Available	Min.: 1 Mult.: 1 : 3’000	128 kbit	3-Wire, SPI	20 MHz	16 k x 8	TSSOP-8	75 ns	1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	CAT25128	Reel, Cut Tape, MouseReel
EEPROM 128K SPI Serial CAT25128XI-T2 onsemi 1: CHF 0.877 1’621In Stock	Mfr. Part No. CAT25128XI-T2 Mouser Part No 698-CAT25128XI-T2	onsemi	EEPROM 128K SPI Serial Learn More about onsemi cat25x spi serial eeproms	Datasheet	1’621In Stock	Cut Tape CHF 0.877 CHF 0.829 CHF 0.799 CHF 0.782 View Reel CHF 0.625 CHF 0.765 CHF 0.742 CHF 0.724 CHF 0.708 CHF 0.625 MouseReel Available	Min.: 1 Mult.: 1 : 2’000	128 kbit	3-Wire, SPI	20 MHz	16 k x 8	SOIC-8	75 ns	1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	CAT25128	Reel, Cut Tape, MouseReel
EEPROM 256KB SPI SER CMOS EEPROM CAT25256XE-T2 onsemi 1: CHF 2.71 1’953In Stock	Mfr. Part No. CAT25256XE-T2 Mouser Part No 863-CAT25256XE-T2	onsemi	EEPROM 256KB SPI SER CMOS EEPROM Learn More about onsemi cat25x spi serial eeproms	Datasheet	1’953In Stock	Cut Tape CHF 2.71 CHF 2.54 CHF 2.45 CHF 2.40 View Reel CHF 2.10 CHF 2.34 CHF 2.27 CHF 2.22 CHF 2.16 CHF 2.10 MouseReel Available	Min.: 1 Mult.: 1 : 2’000	256 kbit	SPI	20 MHz	32 k x 8	SOIC-8		1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 125 C	CAT25256	Reel, Cut Tape, MouseReel
EEPROM 512KB SPI SER CMOS EEPROM CAT25512HU5E-GT3 onsemi 1: CHF 0.992 2’747In Stock	Mfr. Part No. CAT25512HU5E-GT3 Mouser Part No 863-CAT25512HU5E-GT3	onsemi	EEPROM 512KB SPI SER CMOS EEPROM Learn More about onsemi cat25x spi serial eeproms	Datasheet	2’747In Stock	Cut Tape CHF 0.992 CHF 0.926 CHF 0.901 CHF 0.885 View Reel CHF 0.709 CHF 0.861 CHF 0.837 CHF 0.821 CHF 0.796 CHF 0.709	Min.: 1 Mult.: 1 : 3’000	512 kbit	SPI	20 MHz	64 k x 8	UDFN-8		1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 125 C	CAT25512	Reel, Cut Tape
EEPROM 512KB SPI SER CMOS EEPROM CAT25512XE-T2 onsemi 1: CHF 2.06 1’382In Stock	Mfr. Part No. CAT25512XE-T2 Mouser Part No 863-CAT25512XE-T2	onsemi	EEPROM 512KB SPI SER CMOS EEPROM Learn More about onsemi cat25x spi serial eeproms	Datasheet	1’382In Stock	Cut Tape CHF 2.06 CHF 1.93 CHF 1.87 CHF 1.83 View Reel CHF 1.60 CHF 1.79 CHF 1.73 CHF 1.70 CHF 1.66 CHF 1.60	Min.: 1 Mult.: 1 : 2’000	512 kbit	SPI	20 MHz	64 k x 8	SOIC-8		1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 125 C	CAT25512	Reel, Cut Tape
EEPROM 512KB SPI SER CMOS EEPROM CAT25512XI-T2 onsemi 1: CHF 2.10 2’000In Stock	Mfr. Part No. CAT25512XI-T2 Mouser Part No 863-CAT25512XI-T2	onsemi	EEPROM 512KB SPI SER CMOS EEPROM Learn More about onsemi cat25x spi serial eeproms	Datasheet	2’000In Stock	Cut Tape CHF 2.10 CHF 1.97 CHF 1.91 CHF 1.86 View Reel CHF 1.64 CHF 1.82 CHF 1.76 CHF 1.74 CHF 1.69 CHF 1.64	Min.: 1 Mult.: 1 : 2’000	512 kbit	SPI	20 MHz	64 k x 8	SOIC-8		1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 125 C	CAT25512	Reel, Cut Tape
EEPROM 512KB SPI SER CMOS EEPROM CAT25512VI-GT3 onsemi 1: CHF 0.789 25’932In Stock	Mfr. Part No. CAT25512VI-GT3 Mouser Part No 863-CAT25512VI-GT3	onsemi	EEPROM 512KB SPI SER CMOS EEPROM Learn More about onsemi cat25x spi serial eeproms	Datasheet	25’932In Stock	Cut Tape CHF 0.789 CHF 0.755 CHF 0.739 CHF 0.68 View Reel CHF 0.557 CHF 0.665 CHF 0.636 CHF 0.618 CHF 0.578 CHF 0.557 MouseReel Available	Min.: 1 Mult.: 1 : 3’000	512 kbit	3-Wire, SPI	20 MHz	64 k x 8	SOIC-8	75 ns	1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	CAT25512	Reel, Cut Tape, MouseReel
EEPROM 128K SPI Serial CMOS EEPROM CAT25128VI-GT3 onsemi 1: CHF 0.579 5’647In Stock	Mfr. Part No. CAT25128VI-GT3 Mouser Part No 698-CAT25128VI-GT3	onsemi	EEPROM 128K SPI Serial CMOS EEPROM Learn More about onsemi cat25x spi serial eeproms	Datasheet	5’647In Stock	Cut Tape CHF 0.579 CHF 0.555 CHF 0.544 CHF 0.504 View Reel CHF 0.44 CHF 0.494 CHF 0.483 CHF 0.472 CHF 0.453 CHF 0.44 MouseReel Available	Min.: 1 Mult.: 1 : 3’000	128 kbit	3-Wire, SPI	20 MHz	16 k x 8	SOIC-8	75 ns	1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	CAT25128	Reel, Cut Tape, MouseReel
EEPROM 256K SPI Serial CMOS EEPROM CAT25256VI-GT3 onsemi 1: CHF 0.676 9’734In Stock 12’000Expected 6/4/2027	Mfr. Part No. CAT25256VI-GT3 Mouser Part No 698-CAT25256VI-GT3	onsemi	EEPROM 256K SPI Serial CMOS EEPROM Learn More about onsemi cat25x spi serial eeproms	Datasheet	9’734In Stock 12’000Expected 6/4/2027	Cut Tape CHF 0.676 CHF 0.675 CHF 0.66 CHF 0.646 View Reel CHF 0.504 CHF 0.631 CHF 0.612 CHF 0.504 MouseReel Available	Min.: 1 Mult.: 1 : 3’000	256 kbit	3-Wire, SPI	5 MHz	32 k x 8	SOIC-8	75 ns	1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	CAT25256	Reel, Cut Tape, MouseReel
EEPROM 256K SPI Serial CMOS EEPROM CAT25256YI-GT3 onsemi 1: CHF 0.805 22’752In Stock	Mfr. Part No. CAT25256YI-GT3 Mouser Part No 698-CAT25256YI-GT3	onsemi	EEPROM 256K SPI Serial CMOS EEPROM Learn More about onsemi cat25x spi serial eeproms	Datasheet	22’752In Stock	Cut Tape CHF 0.805 CHF 0.798 CHF 0.788 CHF 0.771 View Reel CHF 0.622 CHF 0.748 CHF 0.73 CHF 0.712 CHF 0.622 MouseReel Available	Min.: 1 Mult.: 1 : 3’000	256 kbit	3-Wire, SPI	20 MHz	32 k x 8	TSSOP-8	75 ns	1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	CAT25256	Reel, Cut Tape, MouseReel
EEPROM 256KB SPI SER CMOS EEPROM CAT25256HU4I-GT3 onsemi 1: CHF 0.74 4’592In Stock	Mfr. Part No. CAT25256HU4I-GT3 Mouser Part No 863-CAT25256HU4I-GT3	onsemi	EEPROM 256KB SPI SER CMOS EEPROM Learn More about onsemi cat25x spi serial eeproms	Datasheet	4’592In Stock	Cut Tape CHF 0.74 CHF 0.687 CHF 0.668 CHF 0.653 View Reel CHF 0.57 CHF 0.639 CHF 0.621 CHF 0.607 CHF 0.592 CHF 0.57 MouseReel Available	Min.: 1 Mult.: 1 : 3’000	256 kbit	3-Wire, SPI	10 MHz	32 k x 8	UDFN-8	75 ns	1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	CAT25256	Reel, Cut Tape, MouseReel
EEPROM 128K SPI Serial CAT25128VP2I-GT3 onsemi 1: CHF 0.588 585In Stock 3’000Expected 11/16/2026	Mfr. Part No. CAT25128VP2I-GT3 Mouser Part No 698-CAT25128VP2I-GT3	onsemi	EEPROM 128K SPI Serial Learn More about onsemi cat25x spi serial eeproms	Datasheet	585In Stock 3’000Expected 11/16/2026	Cut Tape CHF 0.588 CHF 0.552 CHF 0.539 CHF 0.529 View Reel CHF 0.426 CHF 0.519 CHF 0.505 CHF 0.496 CHF 0.486 CHF 0.426 MouseReel Available	Min.: 1 Mult.: 1 : 3’000	128 kbit	3-Wire, SPI	20 MHz	16 k x 8	TDFN-8	75 ns	1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	CAT25128	Reel, Cut Tape, MouseReel
EEPROM 128KB SPI SER CMOS EEPROM CAT25128HU4I-GT3 onsemi 1: CHF 0.66 1’160In Stock	Mfr. Part No. CAT25128HU4I-GT3 Mouser Part No 863-CAT25128HU4I-GT3	onsemi	EEPROM 128KB SPI SER CMOS EEPROM Learn More about onsemi cat25x spi serial eeproms	Datasheet	1’160In Stock	Cut Tape CHF 0.66 CHF 0.616 CHF 0.599 CHF 0.587 View Reel CHF 0.428 CHF 0.574 CHF 0.557 CHF 0.544 CHF 0.531 CHF 0.428 MouseReel Available	Min.: 1 Mult.: 1 : 3’000	128 kbit	3-Wire, SPI	10 MHz	16 k x 8	UDFN-8		1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	CAT25128	Reel, Cut Tape, MouseReel
EEPROM 512KB SPI SER CMOS EEPROM CAT25512YI-GT3 onsemi 1: CHF 0.789 260In Stock 18’000Expected 3/26/2027	Mfr. Part No. CAT25512YI-GT3 Mouser Part No 863-CAT25512YI-GT3	onsemi	EEPROM 512KB SPI SER CMOS EEPROM Learn More about onsemi cat25x spi serial eeproms	Datasheet	260In Stock 18’000Expected 3/26/2027	Cut Tape CHF 0.789 CHF 0.734 CHF 0.715 CHF 0.699 View Reel CHF 0.535 CHF 0.684 CHF 0.664 CHF 0.648 CHF 0.633 CHF 0.535 MouseReel Available	Min.: 1 Mult.: 1 : 3’000	512 kbit	3-Wire, SPI	20 MHz	64 k x 8	TSSOP-8	75 ns	1.8 V	5.5 V	SMD/SMT	100 Year	- 40 C	+ 85 C	CAT25512	Reel, Cut Tape, MouseReel

CAT25x SPI Serial EEPROMs

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CAT25x SPI Serial EEPROMs

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