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Microchip Technology 24AA02E48T-E/SN — Memory (DRAM / SRAM / Flash / EEPROM)

Microchip 24AA02E48T-E/SN 2Kbit I²C EEPROM, 400 kHz

MPN24AA02E48T-E/SN
End of Life

Microchip 24AA02E48T-E/SN, 2Kbit I²C EEPROM, 256 x 8 organization, 400 kHz clock frequency, 900 ns access time, 1.7V to 5.5V supply, -40°C to 125°C, 8-SOIC package.

$0.41Ref. price · indicative, final on quote
Microchip Technology 24AA02E48T-E/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

24AA02E48T-E/SN specifications
ParameterValue
Memory typeNon-Volatile
MountingSurface Mount
Supply voltage1.7V ~ 5.5V
Clock frequency400 kHz
Memory interfaceI²C
Operating temperature-40°C ~ 125°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
TechnologyEEPROM
Access time900 ns
Memory size2Kbit
Memory formatEEPROM
Case8-SOIC (0.154\", 3.90mm Width)
Memory organization256 x 8
Write cycle time - word, page5ms

Product details

2Kbit I²C EEPROM with factory-programmed MAC address

The Microchip 24AA02E48T-E/SN is a 2Kbit serial EEPROM with an I²C interface, organized as 256 x 8 bits. What sets this part apart from a plain 24AA02 is the factory-laser-programmed EUI-48 MAC address (the "E48" suffix) — it ships with a globally unique 48-bit identifier in the upper address space, saving a separate MAC-address memory or OTP array in Ethernet, Wi-Fi, or Bluetooth designs. The 400 kHz bus clock and 900 ns access time are standard for this density class, and the write cycle time per word or page is 5 ms.

Industrial temperature grade and wide supply — where it earns its keep

The supply range spans 1.7V to 5.5V, so it holds its calibration data through a cold-crank dip to 1.8V on a 3.3V rail and still runs at 5V in a legacy industrial backplane. This is the part to specify when the module lives in an engine bay, a rooftop radio, or a motor-drive cabinet where the ambient climbs past 85°C.

Listed as Active product status, so no end-of-life risk for current production builds. ROHS3 compliant.

Frequently asked questions

What is the difference between 24AA02E48T-E/SN and 24AA02E48T-I/SN?

The only difference is the temperature grade. The -E/SN is the drop-in replacement for the -I/SN in the same 8-SOIC footprint — just wider temperature tolerance.

Can 24AA02E48T-E/SN be used as a replacement for 24AA02E48T-I/SN?

Yes, it is fully compatible — same pinout, same I²C address map, same 2Kbit density, same 400 kHz bus speed. The -E/SN simply adds margin at the high end (125°C vs 85°C). No firmware or board changes needed.