Skip to main content
Log in
Microchip Technology AT24C01D-XHM-T — Memory (DRAM / SRAM / Flash / EEPROM)

Microchip AT24C01D-XHM-T 1Kbit I²C EEPROM, 1 MHz, 8-TSSOP

MPNAT24C01D-XHM-T
Active

Microchip AT24C01D-XHM-T, 1Kbit serial EEPROM, I²C interface, 1 MHz clock, 128 x 8 organization, 4.5 µs access, 1.7V to 3.6V supply, -40°C to 85°C, 8-TSSOP package.

$0.2000Ref. price · indicative, final on quote
Microchip Technology AT24C01D-XHM-T datasheet (PDF)
Packaging8-TSSOP (0.173", 4.40mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

AT24C01D-XHM-T specifications
ParameterValue
Memory typeNon-Volatile
MountingSurface Mount
Voltage1.7V ~ 3.6V
Frequency1 MHz
Memory interfaceI²C
Operating temperature-40°C~85°C(TC)
PackageTape & Reel (TR); Cut Tape (CT)
TechnologyEEPROM
Access time4.5 µs
Memory size1Kbit
Memory formatEEPROM
Case8-TSSOP (0.173\", 4.40mm Width)
Memory organization128 x 8
Write cycle time - word, page5ms

Product details

1 Kbit I²C EEPROM in a compact 8-TSSOP package

The Microchip AT24C01D-XHM-T is a 1Kbit serial EEPROM with an I²C interface, organized as 128 x 8 bits. It supports clock frequencies up to 1 MHz and offers a 4.5 µs access time for random reads. The 8-TSSOP package saves board area compared to wider SOIC footprints.

The supply range spans 1.7V to 3.6V, which covers 1.8V, 2.5V, and 3.3V logic families without an external regulator. This is a practical advantage when the EEPROM shares a rail with a low-voltage MCU or SoC, eliminating a separate LDO for the memory.

Write cycle time and endurance for parameter storage

For a 1Kbit device used to store calibration coefficients, serial numbers, or configuration bytes, this write speed is adequate for field updates during firmware upgrades or production programming. The EEPROM technology provides non-volatile retention without a battery backup.

Frequently asked questions

Is AT24C01D-XHM-T a direct replacement for AT24C01?

The AT24C01D-XHM-T is a later derivative of the base AT24C01 family. It shares the same 1Kbit density, I²C interface, and 8-TSSOP footprint. However, the AT24C01C variants (e.g., AT24C01C-MAHM-T) list a 550 ns access time versus the 4.5 µs access time of the AT24C01D-XHM-T, so verify timing compatibility with your host controller before substituting.