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24CW I2C Serial EEPROMs

Microchip Technology 24CW I²C Serial EEPROMs are high-speed, highly-reliable, low-power devices in 16Kb, 32Kb, 64Kb, and 128Kb densities. The 24CW series is optimized for consumer and industrial applications, where reliable nonvolatile memory storage is essential. The 24CW series allows up to eight devices to share a common I²C bus and can operate across a broad voltage range (1.6V to 5.5V).

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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 32 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp 24CW320T-I/OT Microchip Technology 1: CHF 0.354 227’737In Stock	Mfr. Part No. 24CW320T-I/OT Mouser Part No 579-24CW320T-I/OT	Microchip Technology	EEPROM 32 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp Learn More about Microchip Technology microchip 24cw i2c eeprom	Datasheet	227’737In Stock	Cut Tape CHF 0.354 CHF 0.352 CHF 0.333 Reel CHF 0.318 MouseReel Available	Min.: 1 Mult.: 1 : 3’000	32 kbit	2-Wire, I2C	1 MHz	4 k x 8	SOT-23-5	450 ns	1.6 V	5.5 V	SMD/SMT	200 Year	- 40 C	+ 85 C	24CW320	Reel, Cut Tape, MouseReel
EEPROM 16 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp 24CW160T-I/OT Microchip Technology 1: CHF 0.314 203’132In Stock	Mfr. Part No. 24CW160T-I/OT Mouser Part No 579-24CW160T-I/OT	Microchip Technology	EEPROM 16 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp Learn More about Microchip Technology microchip 24cw i2c eeprom	Datasheet	203’132In Stock	Cut Tape CHF 0.314 CHF 0.309 CHF 0.308 Reel CHF 0.292 MouseReel Available	Min.: 1 Mult.: 1 : 3’000	16 kbit	2-Wire, I2C	1 MHz	2 k x 8	SOT-23-5	450 ns	1.6 V	5.5 V	SMD/SMT	200 Year	- 40 C	+ 85 C	24CW160	Reel, Cut Tape, MouseReel
EEPROM 32 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp 24CW320T-I/SN Microchip Technology 1: CHF 0.306 4’581In Stock	Mfr. Part No. 24CW320T-I/SN Mouser Part No 579-24CW320T-I/SN	Microchip Technology	EEPROM 32 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp Learn More about Microchip Technology microchip 24cw i2c eeprom	Datasheet	4’581In Stock	Cut Tape CHF 0.306 CHF 0.30 CHF 0.296 Reel CHF 0.284	Min.: 1 Mult.: 1 : 3’300	32 kbit	2-Wire, I2C	1 MHz	4 k x 8	SOIC-8	450 ns	1.6 V	5.5 V	SMD/SMT	200 Year	- 40 C	+ 85 C	24CW320	Reel, Cut Tape
EEPROM 128 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp 24CW1280T-I/ST Microchip Technology 1: CHF 0.555 1’307In Stock	Mfr. Part No. 24CW1280T-I/ST Mouser Part No 579-24CW1280T-I/ST	Microchip Technology	EEPROM 128 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp Learn More about Microchip Technology microchip 24cw i2c eeprom	Datasheet	1’307In Stock	Cut Tape CHF 0.555 Reel CHF 0.48	Min.: 1 Mult.: 1 : 2’500	128 kbit	2-Wire, I2C	1 MHz	16 k x 8	TSSOP-8	450 ns	1.6 V	5.5 V	SMD/SMT	200 Year	- 40 C	+ 85 C	24CW1280	Reel, Cut Tape
EEPROM 64 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp 24CW640T-I/Q4B Microchip Technology 1: CHF 0.387 4’783In Stock	Mfr. Part No. 24CW640T-I/Q4B Mouser Part No 579-24CW640T-I/Q4B	Microchip Technology	EEPROM 64 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp Learn More about Microchip Technology microchip 24cw i2c eeprom	Datasheet	4’783In Stock	Cut Tape CHF 0.387 CHF 0.37 Reel CHF 0.352 MouseReel Available	Min.: 1 Mult.: 1 : 5’000	64 kbit	I2C	1 MHz	8 k x 8	UDFN-8	450 ns	1.6 V	5.5 V	SMD/SMT	200 Year	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
EEPROM 128 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp 24CW1280T-I/OT Microchip Technology 1: CHF 0.532 29’656In Stock	Mfr. Part No. 24CW1280T-I/OT Mouser Part No 579-24CW1280T-I/OT	Microchip Technology	EEPROM 128 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp Learn More about Microchip Technology microchip 24cw i2c eeprom	Datasheet	29’656In Stock	Cut Tape CHF 0.532 CHF 0.53 Reel CHF 0.48 MouseReel Available	Min.: 1 Mult.: 1 : 3’000	128 kbit	2-Wire, I2C	1 MHz	16 k x 8	SOT-23-5	450 ns	1.6 V	5.5 V	SMD/SMT	200 Year	- 40 C	+ 85 C	24CW1280	Reel, Cut Tape, MouseReel
EEPROM 128 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp 24CW1280T-I/MUY Microchip Technology 1: CHF 1.26 1’748In Stock	Mfr. Part No. 24CW1280T-I/MUY Mouser Part No 579-24CW1280T-I/MUY	Microchip Technology	EEPROM 128 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp Learn More about Microchip Technology microchip 24cw i2c eeprom	Datasheet	1’748In Stock	Cut Tape CHF 1.26 Reel CHF 1.15 MouseReel Available	Min.: 1 Mult.: 1 : 3’300	128 kbit	2-Wire, I2C	1 MHz	16 k x 8	UDFN-8	450 ns	1.6 V	5.5 V	SMD/SMT	200 Year	- 40 C	+ 85 C	24CW1280	Reel, Cut Tape, MouseReel
EEPROM 64 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp 24CW640T-I/OT Microchip Technology 1: CHF 0.434 8’375In Stock	Mfr. Part No. 24CW640T-I/OT Mouser Part No 579-24CW640T-I/OT	Microchip Technology	EEPROM 64 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp Learn More about Microchip Technology microchip 24cw i2c eeprom	Datasheet	8’375In Stock	Cut Tape CHF 0.434 CHF 0.431 Reel CHF 0.394 MouseReel Available	Min.: 1 Mult.: 1 : 3’000	64 kbit	2-Wire, I2C	1 MHz	8 k x 8	SOT-23-5	450 ns	1.6 V	5.5 V	SMD/SMT	200 Year	- 40 C	+ 85 C	24CW640	Reel, Cut Tape, MouseReel
EEPROM 16 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp 24CW160T-I/Q4B Microchip Technology 1: CHF 0.273 3’246In Stock	Mfr. Part No. 24CW160T-I/Q4B Mouser Part No 579-24CW160T-I/Q4B	Microchip Technology	EEPROM 16 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp Learn More about Microchip Technology microchip 24cw i2c eeprom	Datasheet	3’246In Stock	Cut Tape CHF 0.273 CHF 0.271 Reel CHF 0.232 MouseReel Available	Min.: 1 Mult.: 1 : 5’000	16 kbit	I2C	1 MHz	2 k x 8	UDFN-8	450 ns	1.6 V	5.5 V	SMD/SMT	200 Year	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
EEPROM 32 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp 24CW320T-I/Q4B Microchip Technology 1: CHF 0.306 2’721In Stock	Mfr. Part No. 24CW320T-I/Q4B Mouser Part No 579-24CW320T-I/Q4B	Microchip Technology	EEPROM 32 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp Learn More about Microchip Technology microchip 24cw i2c eeprom	Datasheet	2’721In Stock	Cut Tape CHF 0.306 CHF 0.30 CHF 0.296 Reel CHF 0.284 MouseReel Available	Min.: 1 Mult.: 1 : 5’000	32 kbit	I2C	1 MHz	4 k x 8	UDFN-8	450 ns	1.6 V	5.5 V	SMD/SMT	200 Year	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
EEPROM 16 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp 24CW160-I/SN Microchip Technology 1: CHF 0.257 395In Stock	Mfr. Part No. 24CW160-I/SN Mouser Part No 579-24CW160-I/SN	Microchip Technology	EEPROM 16 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp Learn More about Microchip Technology microchip 24cw i2c eeprom	Datasheet	395In Stock	CHF 0.257 CHF 0.249 CHF 0.232	Min.: 1 Mult.: 1	16 kbit	2-Wire, I2C	1 MHz	2 k x 8	SOIC-8	450 ns	1.6 V	5.5 V	SMD/SMT	200 Year	- 40 C	+ 85 C	24CW160	Tube
EEPROM 16 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp 24CW160-I/ST Microchip Technology 1: CHF 0.29 523In Stock	Mfr. Part No. 24CW160-I/ST Mouser Part No 579-24CW160-I/ST	Microchip Technology	EEPROM 16 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp Learn More about Microchip Technology microchip 24cw i2c eeprom	Datasheet	523In Stock	CHF 0.29 CHF 0.284 CHF 0.257 CHF 0.249	Min.: 1 Mult.: 1	16 kbit	2-Wire, I2C	1 MHz	2 k x 8	TSSOP-8	450 ns	1.6 V	5.5 V	SMD/SMT	200 Year	- 40 C	+ 85 C	24CW160	Tube
EEPROM 16 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp 24CW160T-I/SN Microchip Technology 1: CHF 0.273 1’998In Stock	Mfr. Part No. 24CW160T-I/SN Mouser Part No 579-24CW160T-I/SN	Microchip Technology	EEPROM 16 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp Learn More about Microchip Technology microchip 24cw i2c eeprom	Datasheet	1’998In Stock	Cut Tape CHF 0.273 CHF 0.271 Reel CHF 0.232	Min.: 1 Mult.: 1 : 3’300	16 kbit	2-Wire, I2C	1 MHz	2 k x 8	SOIC-8	450 ns	1.6 V	5.5 V	SMD/SMT	200 Year	- 40 C	+ 85 C	24CW160	Reel, Cut Tape
EEPROM 32 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp 24CW320-I/SN Microchip Technology 1: CHF 0.306 1’080In Stock	Mfr. Part No. 24CW320-I/SN Mouser Part No 579-24CW320-I/SN	Microchip Technology	EEPROM 32 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp Learn More about Microchip Technology microchip 24cw i2c eeprom	Datasheet	1’080In Stock	CHF 0.306 CHF 0.30 CHF 0.292 CHF 0.284	Min.: 1 Mult.: 1	32 kbit	2-Wire, I2C	1 MHz	4 k x 8	SOIC-8	450 ns	1.6 V	5.5 V	SMD/SMT	200 Year	- 40 C	+ 85 C	24CW320	Tube
EEPROM 64 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp 24CW640-I/SN Microchip Technology 1: CHF 0.387 476In Stock	Mfr. Part No. 24CW640-I/SN Mouser Part No 579-24CW640-I/SN	Microchip Technology	EEPROM 64 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp Learn More about Microchip Technology microchip 24cw i2c eeprom	Datasheet	476In Stock	CHF 0.387 CHF 0.369 CHF 0.352	Min.: 1 Mult.: 1	64 kbit	2-Wire, I2C	1 MHz	8 k x 8	SOIC-8	450 ns	1.6 V	5.5 V	SMD/SMT	200 Year	- 40 C	+ 85 C	24CW640	Tube
EEPROM 64 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp 24CW640-I/ST Microchip Technology 1: CHF 0.394 400In Stock 800Expected 10/26/2026	Mfr. Part No. 24CW640-I/ST Mouser Part No 579-24CW640-I/ST	Microchip Technology	EEPROM 64 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp Learn More about Microchip Technology microchip 24cw i2c eeprom	Datasheet	400In Stock 800Expected 10/26/2026	CHF 0.394 CHF 0.387 CHF 0.36	Min.: 1 Mult.: 1	64 kbit	2-Wire, I2C	1 MHz	8 k x 8	TSSOP-8	450 ns	1.6 V	5.5 V	SMD/SMT	200 Year	- 40 C	+ 85 C	24CW640	Tube
EEPROM 64 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp 24CW640T-I/MUY Microchip Technology 1: CHF 1.07 789In Stock	Mfr. Part No. 24CW640T-I/MUY Mouser Part No 579-24CW640MUY	Microchip Technology	EEPROM 64 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp Learn More about Microchip Technology microchip 24cw i2c eeprom	Datasheet	789In Stock	Cut Tape CHF 1.07 CHF 1.04 Reel CHF 1.03 CHF 1.02	Min.: 1 Mult.: 1 : 3’300	64 kbit	2-Wire, I2C	1 MHz	8 k x 8	UDFN-8	450 ns	1.6 V	5.5 V	SMD/SMT	200 Year	- 40 C	+ 85 C	24CW640	Reel, Cut Tape
EEPROM 64 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp 24CW640T-I/SN Microchip Technology 1: CHF 0.387 2’914In Stock	Mfr. Part No. 24CW640T-I/SN Mouser Part No 579-24CW640T-I/SN	Microchip Technology	EEPROM 64 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp Learn More about Microchip Technology microchip 24cw i2c eeprom	Datasheet	2’914In Stock	Cut Tape CHF 0.387 CHF 0.37 Reel CHF 0.352 MouseReel Available	Min.: 1 Mult.: 1 : 3’300	64 kbit	2-Wire, I2C	1 MHz	8 k x 8	SOIC-8	450 ns	1.6 V	5.5 V	SMD/SMT	200 Year	- 40 C	+ 85 C	24CW640	Reel, Cut Tape, MouseReel
EEPROM 64 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp 24CW640T-I/ST Microchip Technology 1: CHF 0.411 1’956In Stock	Mfr. Part No. 24CW640T-I/ST Mouser Part No 579-24CW640T-I/ST	Microchip Technology	EEPROM 64 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp Learn More about Microchip Technology microchip 24cw i2c eeprom	Datasheet	1’956In Stock	Cut Tape CHF 0.411 CHF 0.406 Reel CHF 0.36	Min.: 1 Mult.: 1 : 2’500	64 kbit	2-Wire, I2C	1 MHz	8 k x 8	TSSOP-8	450 ns	1.6 V	5.5 V	SMD/SMT	200 Year	- 40 C	+ 85 C	24CW640	Reel, Cut Tape
EEPROM 128 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp 24CW1280-I/SN Microchip Technology 1: CHF 0.507 424In Stock	Mfr. Part No. 24CW1280-I/SN Mouser Part No 579-24CW1280-I/SN	Microchip Technology	EEPROM 128 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp Learn More about Microchip Technology microchip 24cw i2c eeprom	Datasheet	424In Stock	CHF 0.507 CHF 0.506 CHF 0.48 CHF 0.463	Min.: 1 Mult.: 1	128 kbit	2-Wire, I2C	1 MHz	16 k x 8	SOIC-8	450 ns	1.6 V	5.5 V	SMD/SMT	200 Year	- 40 C	+ 85 C	24CW1280	Tube
EEPROM 128 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp 24CW1280T-I/SN Microchip Technology 1: CHF 0.523 165In Stock 3’300Expected 11/23/2026	Mfr. Part No. 24CW1280T-I/SN Mouser Part No 579-24CW1280T-I/SN	Microchip Technology	EEPROM 128 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp Learn More about Microchip Technology microchip 24cw i2c eeprom	Datasheet	165In Stock 3’300Expected 11/23/2026	Cut Tape CHF 0.523 CHF 0.518 Reel CHF 0.463 MouseReel Available	Min.: 1 Mult.: 1 : 3’300	128 kbit	2-Wire, I2C	1 MHz	16 k x 8	SOIC-8	450 ns	1.6 V	5.5 V	SMD/SMT	200 Year	- 40 C	+ 85 C	24CW1280	Reel, Cut Tape, MouseReel
EEPROM 16 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp 24CW160T-I/MUY Microchip Technology 1: CHF 0.945 134In Stock	Mfr. Part No. 24CW160T-I/MUY Mouser Part No 579-24CW160MUY	Microchip Technology	EEPROM 16 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp Learn More about Microchip Technology microchip 24cw i2c eeprom	Datasheet	134In Stock	Cut Tape CHF 0.945 Reel CHF 0.805	Min.: 1 Mult.: 1 : 3’300	16 kbit	2-Wire, I2C	1 MHz	2 k x 8	UDFN-8	450 ns	1.6 V	5.5 V	SMD/SMT	200 Year	- 40 C	+ 85 C	24CW160	Reel, Cut Tape
EEPROM 128 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp 24CW1280-I/ST Microchip Technology 1: CHF 0.523 2In Stock	Mfr. Part No. 24CW1280-I/ST Mouser Part No 579-24CW1280-I/ST	Microchip Technology	EEPROM 128 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp Learn More about Microchip Technology microchip 24cw i2c eeprom	Datasheet	2In Stock	CHF 0.523 CHF 0.506 CHF 0.48	Min.: 1 Mult.: 1	128 kbit	2-Wire, I2C	1 MHz	16 k x 8	TSSOP-8	450 ns	1.6 V	5.5 V	SMD/SMT	200 Year	- 40 C	+ 85 C	24CW1280	Tube
EEPROM 16 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp 24CW160T-I/ST Microchip Technology 2’500: CHF 0.249 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. 24CW160T-I/ST Mouser Part No 579-24CW160T-I/ST	Microchip Technology	EEPROM 16 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp Learn More about Microchip Technology microchip 24cw i2c eeprom	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel CHF 0.249	Min.: 2’500 Mult.: 2’500 : 2’500	16 kbit	I2C	1 MHz	2 k x 8	TSSOP-8		1.6 V	5.5 V	SMD/SMT	200 Year	- 40 C	+ 85 C	24CW160	Reel
EEPROM 32 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp 24CW320-I/ST Microchip Technology 1: CHF 0.314 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. 24CW320-I/ST Mouser Part No 579-24CW320-I/ST	Microchip Technology	EEPROM 32 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp Learn More about Microchip Technology microchip 24cw i2c eeprom	Datasheet	Non-Stocked Lead-Time 10 Weeks	CHF 0.314 CHF 0.309 CHF 0.30 CHF 0.292	Min.: 1 Mult.: 1	32 kbit	2-Wire, I2C	1 MHz	4 k x 8	TSSOP-8	450 ns	1.6 V	5.5 V	SMD/SMT	200 Year	- 40 C	+ 85 C	24CW320	Tube

24CW I2C Serial EEPROMs

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