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Microchip Technology AT24C32D-STUM-T — Memory (DRAM / SRAM / Flash / EEPROM)

Microchip AT24C32D-STUM-T 32Kbit I2C EEPROM, 1 MHz, SOT-23-5

MPNAT24C32D-STUM-T
Active

Microchip AT24C32D-STUM-T, 32Kbit I2C EEPROM, 1 MHz clock, 550 ns access time, 1.7V-5.5V supply, SOT-23-5 package, -40°C to +85°C, Active.

$0.3800Ref. price · indicative, final on quote
Microchip Technology AT24C32D-STUM-T datasheet (PDF)
PackagingSOT-23-5 Thin, TSOT-23-5
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

AT24C32D-STUM-T specifications
ParameterValue
Memory typeNon-Volatile
MountingSurface Mount
Voltage1.7V ~ 5.5V
Frequency1 MHz
Memory interfaceI²C
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
TechnologyEEPROM
Access time550 ns
Memory size32Kbit
Memory formatEEPROM
CaseSOT-23-5 Thin, TSOT-23-5
Memory organization4K x 8
Write cycle time - word, page5ms

Product details

32 Kbit I2C EEPROM in a 5-pin SOT-23

The Microchip AT24C32D-STUM-T is a 32Kbit serial EEPROM organized as 4K x 8 bits, accessed through an I2C interface. The device supports a 1 MHz bus clock and offers a 550 ns access time, suitable for configuration storage, calibration data, and small logging buffers in industrial and consumer designs.

Rated from 1.7V to 5.5V, this part covers the common digital rails without a regulator or level shifter. The write cycle time of 5 ms per word or page sets the pacing for non-volatile updates in a control loop.

Housed in a thin SOT-23-5 (TSOT-23-5) package, the AT24C32D-STUM-T occupies minimal board area. The supplier device package is SOT-23-5.

Frequently asked questions

What is the equivalent part for AT24C32D-STUM-T?

The AT24CS64-MAHM-T is a 64Kbit I2C EEPROM in a similar SOT-23-5 package with the same 1 MHz clock and 1.7V supply minimum, offering double the density for designs that need more non-volatile storage.

Can AT24C32D-STUM-T replace AT24C32A?

The AT24C32D is a newer process variant of the AT24C32 family. Both are 32Kbit I2C EEPROMs, but the D-series operates down to 1.7V versus the A-series typical 2.5V minimum. Pin compatibility depends on the package; the STUM-T is in a 5-pin SOT-23, while older AT24C32A parts often came in 8-pin SOIC or DIP. Check the package footprint before substituting.