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Microchip Technology 24LC512-I/MF — Memory (DRAM / SRAM / Flash / EEPROM)

Microchip 24LC512-I/MF 512Kbit I²C EEPROM, 900 ns

MPN24LC512-I/MF
End of Life

Microchip 24LC512-I/MF, 512Kbit I²C EEPROM, 900 ns access time, 400 kHz clock, 2.5 V to 5.5 V supply, 64K x 8 organization, -40°C to 85°C, 8-VDFN Exposed Pad, Tube.

$2.16Ref. price · indicative, final on quote
Microchip Technology 24LC512-I/MF datasheet (PDF)
Packaging8-VDFN Exposed Pad
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

24LC512-I/MF specifications
ParameterValue
Memory typeNon-Volatile
MountingSurface Mount
Voltage2.5V ~ 5.5V
Frequency400 kHz
Memory interfaceI²C
Operating temperature-40°C ~ 85°C (TA)
PackageTube
TechnologyEEPROM
Access time900 ns
Memory size512Kbit
Memory formatEEPROM
Case8-VDFN Exposed Pad
Memory organization64K x 8
Write cycle time - word, page5ms

Product details

The Microchip 24LC512-I/MF is a 512 Kbit serial EEPROM with an I²C interface, organized as 64K x 8 bits. The 400 kHz clock frequency is standard Fast Mode I²C, so any MCU with a hardware I²C peripheral can talk to it directly — no bit-bang needed. Access time is 900 ns, but on a 400 kHz bus the bus itself is the throughput bottleneck, not the memory array.

If you are running a battery-backed system that drops to 2.5 V, this part stays alive.

Write cycle time and memory endurance

The write cycle time is 5 ms for a word or page write.

Package and mounting — what to tell the layout engineer

The 24LC512-I/MF comes in an 8-DFN Exposed Pad package, supplier device package 8-DFN-S (6x5 mm). It is a surface-mount part.

Frequently asked questions

Can I use the 24LC512-I/MF as a replacement for the 24LC512-I/SN?

The 24LC512-I/SN is the SOIC-8 package variant of the same die. The 24LC512-I/MF uses an 8-DFN exposed pad package with a different footprint. Electrically they are identical — same 512 Kbit density, same I²C interface, same timing — but the PCB layout must match the DFN footprint and pad layout.

Is the 24LC512-I/MF compatible with 3.3 V systems?

Yes. No level shifter is needed on the I²C bus if the MCU also runs at 3.3 V.

What is the write cycle time for the 24LC512-I/MF?

This is the time the device takes to program the internal EEPROM cells after receiving the data; the I²C bus is held busy during this period.