24CS128 128Kbits 3.4MHz I2C Serial EEPROMs

Microchip Technology 24CS128 128Kbits 3.4MHz I2C Serial EEPROMs utilize an I2C (two-wire) serial interface with 3.4MHz high-speed mode capability. The device is organized as 16,384 bytes of 8 bits each (16-Kbyte) and is optimized for use in consumer, industrial, and automotive applications where reliable and dependable non-volatile memory storage is essential. The 24CS128 allows up to eight devices to share a common I2C (two-wire) bus and is capable of operation across a broad voltage range (1.7V to 5.5V).

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Description Datasheet Availability Pricing (ARS) 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
Supply Voltage - Min
Supply Voltage - Max
Mounting Style
Data Retention
Minimum Operating Temperature
Maximum Operating Temperature
Packaging
Microchip Technology EEPROM 128K 3.4MHz I2C SERIAL EEPROM, E-Temp, ECC, SOIC
Datasheet
2.310In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.300

128 kbit I2C 3.4 MHz 16384 x 8 SOIC-8 1.7 V 5.5 V SMD/SMT 200 Year - 40 C + 125 C Reel, Cut Tape, MouseReel
Microchip Technology EEPROM 128K 3.4MHz I2C SERIAL EEPROM, I-Temp, ECC, MSOP
Datasheet
1.749In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2.500

128 kbit I2C 3.4 MHz 16384 x 8 MSOP-8 1.7 V 5.5 V SMD/SMT 200 Year - 40 C + 85 C Reel, Cut Tape, MouseReel
Microchip Technology EEPROM 128K 3.4MHz I2C SERIAL EEPROM, E-Temp, ECC, SOIC
Datasheet
883In Stock
Min.: 1
Mult.: 1

128 kbit I2C 3.4 MHz 16384 x 8 SOIC-8 1.7 V 5.5 V SMD/SMT 200 Year - 40 C + 125 C Tube
Microchip Technology EEPROM 128K 3.4MHz I2C SERIAL EEPROM, E-Temp, ECC, SOT-23
Datasheet
2.065In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

128 kbit I2C 3.4 MHz 16384 x 8 SOT-23-5 1.7 V 5.5 V SMD/SMT 200 Year - 40 C + 125 C Reel, Cut Tape, MouseReel
Microchip Technology EEPROM 128K 3.4MHz I2C SERIAL EEPROM, E-Temp, ECC, UDFN
Datasheet
3.500In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5.000

128 kbit I2C 3.4 MHz 16384 x 8 UDFN-8 1.7 V 5.5 V SMD/SMT 200 Year - 40 C + 125 C Reel, Cut Tape, MouseReel
Microchip Technology EEPROM 128K 3.4MHz I2C SERIAL EEPROM, I-Temp, ECC, UDFN
Datasheet
3.500In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5.000

128 kbit I2C 3.4 MHz 16384 x 8 UDFN-8 1.7 V 5.5 V SMD/SMT 200 Year - 40 C + 85 C Reel, Cut Tape, MouseReel
Microchip Technology EEPROM 128K 3.4MHz I2C SERIAL EEPROM, I-Temp, ECC, MSOP
Datasheet
900In Stock
Min.: 1
Mult.: 1

128 kbit I2C 3.4 MHz 16384 x 8 MSOP-8 1.7 V 5.5 V SMD/SMT 200 Year - 40 C + 85 C Tube
Microchip Technology EEPROM 128K 3.4MHz I2C SERIAL EEPROM, I-Temp, ECC, SOIJ
Datasheet
720In Stock
Min.: 1
Mult.: 1

128 kbit I2C 3.4 MHz 16384 x 8 SOIJ-8 1.7 V 5.5 V SMD/SMT 200 Year - 40 C + 85 C Tube
Microchip Technology EEPROM 128K 3.4MHz I2C SERIAL EEPROM, I-Temp, ECC, SOIC
Datasheet
975In Stock
Min.: 1
Mult.: 1

128 kbit I2C 3.4 MHz 16384 x 8 SOIC-8 1.7 V 5.5 V SMD/SMT 200 Year - 40 C + 85 C Tube
Microchip Technology EEPROM 128K 3.4MHz I2C SERIAL EEPROM, I-Temp, ECC, SOIC
Datasheet
2.310In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.300

128 kbit I2C 3.4 MHz 16384 x 8 SOIC-8 1.7 V 5.5 V SMD/SMT 200 Year - 40 C + 85 C Reel, Cut Tape, MouseReel
Microchip Technology EEPROM 128K 3.4MHz I2C SERIAL EEPROM, I-Temp, ECC, TSSOP
Datasheet
1.750In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2.500

128 kbit I2C 3.4 MHz 16384 x 8 TSSOP-8 1.7 V 5.5 V SMD/SMT 200 Year - 40 C + 85 C Reel, Cut Tape, MouseReel
Microchip Technology EEPROM 128K 3.4MHz I2C SERIAL EEPROM, I-Temp, ECC, PDIP
Datasheet
660Expected 2/16/2026
Min.: 1
Mult.: 1

128 kbit I2C 3.4 MHz 16384 x 8 PDIP-8 1.7 V 5.5 V SMD/SMT 200 Year - 40 C + 85 C Tube
Microchip Technology EEPROM 128K 3.4MHz I2C SERIAL EEPROM, I-Temp, ECC, SOT-23
Datasheet
3.000Expected 2/23/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

128 kbit I2C 3.4 MHz 16384 x 8 SOT-23-5 1.7 V 5.5 V SMD/SMT 200 Year - 40 C + 85 C Reel, Cut Tape, MouseReel
Microchip Technology EEPROM 128K 3.4MHz I2C SERIAL EEPROM, I-Temp, ECC, SOIJ
Datasheet
1.470In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2.100

128 kbit I2C 3.4 MHz 16384 x 8 SOIJ-8 1.7 V 5.5 V SMD/SMT 200 Year - 40 C + 85 C Reel, Cut Tape, MouseReel
Microchip Technology EEPROM 128K 3.4MHz I2C SERIAL EEPROM, E-Temp, ECC, MSOP
Datasheet
800Expected 4/24/2026
Min.: 1
Mult.: 1

128 kbit I2C 3.4 MHz 16384 x 8 MSOP-8 1.7 V 5.5 V SMD/SMT 200 Year - 40 C + 125 C Tube
Microchip Technology EEPROM 128K 3.4MHz I2C SERIAL EEPROM, E-Temp, ECC, PDIP
Datasheet
600Expected 4/21/2026
Min.: 1
Mult.: 1

128 kbit I2C 3.4 MHz 16384 x 8 PDIP-8 1.7 V 5.5 V SMD/SMT 200 Year - 40 C + 125 C Tube
Microchip Technology EEPROM 128K 3.4MHz I2C SERIAL EEPROM, E-Temp, ECC, SOIJ
Datasheet
720Expected 4/24/2026
Min.: 1
Mult.: 1

128 kbit I2C 3.4 MHz 16384 x 8 SOIJ-8 1.7 V 5.5 V SMD/SMT 200 Year - 40 C + 125 C Tube
Microchip Technology EEPROM 128K 3.4MHz I2C SERIAL EEPROM, E-Temp, ECC, MSOP
Datasheet
2.500Expected 4/24/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2.500

128 kbit I2C 3.4 MHz 16384 x 8 MSOP-8 1.7 V 5.5 V SMD/SMT 200 Year - 40 C + 125 C Reel, Cut Tape, MouseReel
Microchip Technology EEPROM 128K 3.4MHz I2C SERIAL EEPROM, E-Temp, ECC, SOIJ
Datasheet
2.100Expected 4/24/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2.100

128 kbit I2C 3.4 MHz 16384 x 8 SOIJ-8 1.7 V 5.5 V SMD/SMT 200 Year - 40 C + 125 C Reel, Cut Tape, MouseReel
Microchip Technology EEPROM 128K 3.4MHz I2C SERIAL EEPROM, E-Temp, ECC, TSSOP
Datasheet
2.500Expected 4/21/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2.500

128 kbit I2C 3.4 MHz 16384 x 8 TSSOP-8 1.7 V 5.5 V SMD/SMT 200 Year - 40 C + 125 C Reel, Cut Tape, MouseReel