The Microchip 93LC46AT-E/OT is a 1 Kbit non-volatile serial EEPROM using the Microwire interface, organized as 128 x 8 bits. The SOT-23-6 package takes almost no board area — useful for storing calibration constants, configuration bytes, or serial numbers in a design where every square millimetre counts.
125°C rated — not just another commercial EEPROM
The 2 MHz clock still holds across the full temperature range, so the firmware timing budget doesn't need derating at the hot end.
6 ms write cycle — plan your firmware loop accordingly
Word and page writes complete in 6 ms typical. That is the window the MCU must wait before polling the ready status or issuing the next command. For a 1 Kbit device the page size is small, so a full-chip rewrite of all 128 bytes takes roughly 768 ms if done byte-by-byte. If the application logs data at high frequency, budget the write latency or buffer writes into idle periods.
ROHS3 compliant per the compliance record.