1Kbit Microwire EEPROM in 8-TSSOP
The Microchip 93LC46A-I/ST is a 1Kbit serial EEPROM organized as 128 x 8 bits, communicating over a Microwire interface at up to 2 MHz. Packaged in an 8-TSSOP, it is a surface-mount device suited for board-level configuration storage — calibration constants, device IDs, or small lookup tables — where non-volatile retention is required.
Industrial temperature rating and deployment
The extended range means data retention is guaranteed across the thermal cycling typical of unheated enclosures or near heat-generating components.
Write cycle and memory organization
Word and page writes complete in 6 ms. For a 128-byte memory, that is fast enough for infrequent parameter updates — think calibration trim values or serial numbers written once per product life. The 128 x 8 organization is byte-addressable, which simplifies firmware integration compared to word-only organizations.
Listed with active product status.