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Microchip Technology AT24MAC402-XHM-T — Memory (DRAM / SRAM / Flash / EEPROM)

AT24MAC402-XHM-T EEPROM 2Kbit I²C 1MHz 8-TSSOP

MPNAT24MAC402-XHM-T
End of Life

Microchip AT24MAC402-XHM-T, 2Kbit Serial I²C EEPROM, 1 MHz clock, 550 ns access, 1.7V-5.5V supply, 8-TSSOP, -40°C to 85°C.

$0.38Ref. price · indicative, final on quote
Microchip Technology AT24MAC402-XHM-T datasheet (PDF)
Packaging8-TSSOP (0.173", 4.40mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

AT24MAC402-XHM-T specifications
ParameterValue
Memory typeNon-Volatile
MountingSurface Mount
Supply voltage1.7V ~ 5.5V
Clock frequency1 MHz
Memory interfaceI²C
Operating temperature-40°C ~ 85°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
TechnologyEEPROM
Access time550 ns
Memory size2Kbit
Memory formatEEPROM
Case8-TSSOP (0.173\", 4.40mm Width)
Memory organization256 x 8
Write cycle time - word, page5ms

Product details

What this EEPROM brings that a generic 2Kbit doesn't

The Microchip AT24MAC402-XHM-T is a 2Kbit serial EEPROM with a factory-programmed, unique MAC address. That pre-loaded ID saves a separate MAC-address chip or a firmware-assigned address that can collide on a network.

Supply range and bus compatibility

The 1.7V to 5.5V supply range covers the common 3.3V and 5V rails found on most MCU boards. At 5V the I²C bus meets 5V logic thresholds directly; at 3.3V the device remains fully functional with the same 1 MHz clock. No external regulator or level shifter needed for either voltage.

Frequently asked questions

Is AT24MAC402-XHM-T compatible with 5V supply?

Yes, the supply range is 1.7V to 5.5V, so it works directly on a 5V rail without a level shifter.

Is AT24MAC402-XHM-T compatible with 3.3V logic?

Yes, the 1.7V to 5.5V supply range includes 3.3V, and the I²C interface operates at 1 MHz at that voltage.