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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Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model 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
Packaging
Microchip Technology EEPROM 32 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp
Datasheet
227,737In Stock
Cut Tape
$0.44
$0.437
$0.414
Reel
$0.395
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
Microchip Technology EEPROM 16 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp
Datasheet
203,942In Stock
Cut Tape
$0.39
$0.384
$0.383
Reel
$0.363
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
Microchip Technology EEPROM 128 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp
Datasheet
1,307In Stock
Cut Tape
$0.69
$0.689
Reel
$0.597
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
Microchip Technology EEPROM 64 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp
Datasheet
4,804In Stock
Cut Tape
$0.48
$0.459
Reel
$0.437
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
Microchip Technology EEPROM 128 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp
Datasheet
29,872In Stock
Cut Tape
$0.66
$0.658
Reel
$0.597
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
Microchip Technology EEPROM 128 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp
Datasheet
2,053In Stock
Cut Tape
$1.57
Reel
$1.43
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
Microchip Technology EEPROM 32 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp
Datasheet
4,587In Stock
Cut Tape
$0.38
$0.373
$0.368
Reel
$0.352
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
Microchip Technology EEPROM 64 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp
Datasheet
8,680In Stock
Cut Tape
$0.54
$0.536
Reel
$0.49
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
Microchip Technology EEPROM 16 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp
Datasheet
4,414In Stock
Cut Tape
$0.34
$0.337
Reel
$0.288
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
Microchip Technology EEPROM 32 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp
Datasheet
2,721In Stock
Cut Tape
$0.38
$0.373
$0.368
Reel
$0.352
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
Microchip Technology EEPROM 16 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp
Datasheet
395In Stock
$0.32
$0.309
$0.288
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
Microchip Technology EEPROM 16 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp
Datasheet
523In Stock
$0.36
$0.352
$0.32
$0.309
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
Microchip Technology EEPROM 16 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp
Datasheet
1,998In Stock
Cut Tape
$0.34
$0.337
Reel
$0.288
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
Microchip Technology EEPROM 32 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp
Datasheet
1,080In Stock
$0.38
$0.373
$0.363
$0.352
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
Microchip Technology EEPROM 64 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp
Datasheet
476In Stock
$0.48
$0.458
$0.437
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
Microchip Technology EEPROM 64 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp
Datasheet
400In Stock
800Expected 10/26/2026
$0.49
$0.48
$0.448
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
Microchip Technology EEPROM 64 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp
Datasheet
789In Stock
Cut Tape
$1.32
$1.29
Reel
$1.28
Quote
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
Microchip Technology EEPROM 64 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp
Datasheet
3,164In Stock
Cut Tape
$0.48
$0.459
Reel
$0.437
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
Microchip Technology EEPROM 64 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp
Datasheet
1,956In Stock
Cut Tape
$0.51
$0.505
Reel
$0.448
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
Microchip Technology EEPROM 128 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp
Datasheet
424In Stock
$0.63
$0.629
$0.597
$0.576
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
Microchip Technology EEPROM 128 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp
Datasheet
165In Stock
3,300Expected 11/23/2026
Cut Tape
$0.65
$0.643
Reel
$0.576
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
Microchip Technology EEPROM 16 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp
Datasheet
134In Stock
Cut Tape
$1.18
Reel
$1.00
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
Microchip Technology EEPROM 128 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp
Datasheet
2In Stock
$0.65
$0.629
$0.597
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
Microchip Technology EEPROM 16 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp
Datasheet
Non-Stocked Lead-Time 10 Weeks
Cut Tape
$0.36
$0.352
Reel
$0.309
Min.: 1
Mult.: 1
: 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, Cut Tape
Microchip Technology EEPROM 32 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp
Datasheet
Non-Stocked Lead-Time 10 Weeks
$0.39
$0.384
$0.373
$0.363
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