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Microchip Technology 24LC32AFT-I/SN — Microcontrollers & Processors (MCU / MPU / DSP)

Microchip 24LC32AFT-I/SN 32Kbit I2C EEPROM, 400 kHz, 8-SOIC

MPN24LC32AFT-I/SN
End of Life

Microchip 24LC32AFT-I/SN, 32Kbit I2C serial EEPROM, 400 kHz clock, 900 ns access, 2.5V to 5.5V supply, industrial temp -40°C to 85°C, 8-SOIC package.

$0.46Ref. price · indicative, final on quote
Microchip Technology 24LC32AFT-I/SN datasheet (PDF)
Packaging8-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

24LC32AFT-I/SN specifications
ParameterValue
Memory typeNon-Volatile
MountingSurface Mount
Supply voltage2.5V ~ 5.5V
Clock frequency400 kHz
Memory interfaceI²C
Operating temperature-40°C ~ 85°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
TechnologyEEPROM
Access time900 ns
Memory size32Kbit
Memory formatEEPROM
Case8-SOIC (0.154\", 3.90mm Width)
Memory organization4K x 8
Write cycle time - word, page5ms

Product details

32 Kbit I2C EEPROM for configuration storage

The Microchip 24LC32AFT-I/SN is a 32 Kbit serial EEPROM with an I2C interface, organized as 4K x 8 bits. The part is packaged in an 8-pin SOIC (0.154" width, 3.90 mm body) for surface-mount assembly.

Read and write timing for the bus

The write cycle time is 5 ms per page or byte, so a full 32 Kbit write (512 bytes) takes roughly 2.5 seconds if done sequentially. For designs that log data at sub-second intervals, consider whether the 5 ms write delay fits the update rate; if not, a dual-bank or larger page-size EEPROM may be needed.

The part is ROHS3 compliant.

Frequently asked questions

Does 24LC32AFT-I/SN support the I2C protocol?

Yes, it uses an I2C interface with a 400 kHz clock frequency, compatible with standard and fast-mode I2C buses.

What is the write cycle time of 24LC32AFT-I/SN?

The write cycle time is 5 ms per word or page, meaning each byte or page write takes 5 ms to complete internally.

Is 24LC32AFT-I/SN a replacement for 24LC32A?

The 24LC32AFT-I/SN is a specific variant of the 24LC32A family — it shares the same 32 Kbit density, I2C interface, and 8-SOIC package, but the suffix indicates tape-and-reel packaging and industrial temperature range. It is functionally interchangeable with other 24LC32A variants in the same package.