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Microchip Technology 93C46/J — Memory (DRAM / SRAM / Flash / EEPROM)

Microchip 93C46/J 1Kbit EEPROM, Microwire 1 MHz, Bulk

MPN93C46/J
Active

Microchip 93C46/J 1Kbit EEPROM, Microwire serial interface, 1 MHz clock, 4.5V to 5.5V supply, 64 x 16 organization, 0°C to 70°C, Bulk package.

$1.0400Ref. price · indicative, final on quote
Microchip Technology 93C46/J datasheet (PDF)
RoHSRoHS non-compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

93C46/J specifications
ParameterValue
Memory typeNon-Volatile
Voltage4.5V ~ 5.5V
Frequency1 MHz
Memory interfaceMicrowire
Operating temperature0°C~70°C(TA)
PackageBulk
TechnologyEEPROM
Memory size1Kbit
Memory formatEEPROM
Memory organization64 x 16
Write cycle time - word, page2ms

Product details

1Kbit serial EEPROM with a 1 MHz Microwire bus

The Microchip 93C46/J is a 1Kbit serial EEPROM organized as 64 words of 16 bits each, accessed through a Microwire synchronous serial interface running at up to 1 MHz. This is the through-hole Bulk-packaged variant of the long-running 93C46 family, intended for parameter storage, calibration constants, and small configuration tables in 5V logic systems.

64 x 16 organization and write-cycle timing

The 64 x 16 bit (1Kbit) organization means each write operation programs a full 16-bit word. The write cycle time — word or page — is 2 ms.

It is RoHS non-compliant, which matters for EU and RoHS-regulated markets.

Frequently asked questions

What is the equivalent or replacement for 93C46/J?

The 93C46B/P is a through-hole functional equivalent with the same 1Kbit density, 64x16 organization, and 4.5V supply, but it runs at 2 MHz instead of 1 MHz. The 93C46B/SN is the surface-mount SOIC version. Neither is a direct pin-for-pin replacement without verifying the package and mounting.

What is the difference between 93C46 and 93C46/J?

The 93C46/J is a specific ordering code variant within the 93C46 family. The 'J' suffix denotes the through-hole Bulk package option. The base 93C46 covers the full family including surface-mount and tape-and-reel variants.