Active production, 5V Microwire EEPROM for commercial-temperature designs
The Microchip 93C46B/SN is a 1Kbit serial EEPROM using the Microwire interface, organized as 64 words of 16 bits each.
Package and footprint — 8-SOIC, tube delivery
Tube shipment means the parts arrive in anti-static tubes, not tape-and-reel — factor that into your pick-and-place feeder setup if you plan automated assembly.
Supply voltage and 5V system compatibility
Rated supply range is 4.5V to 5.5V, which directly answers the common question: yes, the 93C46B/SN is compatible with 5V systems. A 5V ±10% rail keeps it inside spec. There is no on-chip regulator for lower voltages — if your board runs 3.3V logic, look at the 93C46B-I/SN or a 3V-rated EEPROM variant.
Listed as Active in production.