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Microchip Technology AT93C46D-SP25DX — Discrete Semiconductors

Microchip AT93C46D-SP25DX EEPROM, 1Kbit, 3-Wire, 8-SOIC

MPNAT93C46D-SP25DX
End of Life

Microchip Technology AT93C46D-SP25DX EEPROM, 1Kbit, 3-Wire Serial Interface, 2 MHz, 1.8-5.5V, -40°C to +85°C, 8-SOIC, Bulk.

$0.36Ref. price · indicative, final on quote
Packaging8-SOIC (0.154", 3.90mm Width)
RoHSNot applicable
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

AT93C46D-SP25DX specifications
ParameterValue
Memory typeNon-Volatile
MountingSurface Mount
Supply voltage1.8V ~ 5.5V
Clock frequency2 MHz
Memory interface3-Wire Serial
Operating temperature-40°C ~ 85°C (TA)
PackageBulk
TechnologyEEPROM
Memory size1Kbit
Memory formatEEPROM
Case8-SOIC (0.154\", 3.90mm Width)
Memory organization128 x 8, 64 x 16
Write cycle time - word, page5ms

Product details

1 Kbit serial EEPROM — 3-wire interface, wide supply range

The AT93C46D-SP25DX is a 1 Kbit serial EEPROM from Microchip Technology, organized as 128 x 8 or 64 x 16 bits, accessed over a 3-wire serial interface.

Supplied in bulk (tube) packaging, it's suited for prototype runs or low-volume production where tape-and-reel isn't required.

Active lifecycle — no end-of-life risk

Microchip lists this part as Active in production, so you can design it into new builds without worrying about a last-time-buy window.

Frequently asked questions

Is the AT93C46D-SP25DX compatible with the AT24C08D-SSHM-B?

No — the AT24C08D-SSHM-B uses an I²C interface, while the AT93C46D-SP25DX uses a 3-wire serial interface. They are not pin-compatible and require different bus protocols, so a board spin is needed to swap between them.