8Kbit Microwire EEPROM in a SOT-23-6 footprint
The Microchip 93AA76BT-I/OT is an 8Kbit serial EEPROM organized as 512 x 16 bits, accessed through a Microwire interface running at up to 3 MHz. The SOT-23-6 package makes it a fit for space-constrained boards where a small non-volatile memory for parameter storage, calibration constants, or configuration data is needed.
Supply range and logic compatibility
The 1.8V minimum supply means this part works directly with 1.8V, 2.5V, 3.3V, and 5V logic families without a level shifter on the Microwire bus. The 5.5V maximum covers 5V nominal rails with margin. For a 3.3V system, the 93AA76BT-I/OT is a direct drop-in.
Write cycle timing and endurance
Word and page writes complete in 5 ms maximum (typical is lower). That write time is a factor if the system performs frequent updates — for example, logging counters or storing calibration values at power-down. The EEPROM technology is rated for a million write cycles per location, which covers most product lifetimes without wear-leveling.
Package and ordering form
Surface-mount assembly with a standard SOT-23-6 footprint.
Lifecycle and sourcing posture
Microchip lists the 93AA76BT-I/OT as an active product with no end-of-life notification. It is RoHS3 compliant.