The ROHM BR93G46FVM-3AGTTR is a 1Kbit serial EEPROM organized as 64 words x 16 bits, communicating over a Microwire interface at up to 3 MHz. It operates from a 1.7V to 5.5V supply, making it usable in both 1.8V and 5V logic domains without a level translator. Typical applications include storing calibration constants, configuration parameters, or small lookup tables in industrial sensors, metering equipment, or consumer electronics where non-volatile retention is needed without a battery.
3 MHz Microwire — throughput for small parameter blocks
The 3 MHz clock rate on the Microwire bus translates to a raw serial bit rate of 3 Mbps. For a 16-bit word, that is roughly 187k reads per second — plenty for reading a few dozen configuration bytes at power-up or during a calibration cycle. The 1Kbit density (64 x 16) suits storing a handful of parameters — think trim values, serial numbers, or fault logs — not firmware images.
The 1.7V to 5.5V supply range covers 1.8V, 2.5V, 3.3V, and 5V rails, so this part fits mixed-voltage designs without a separate regulator for the memory. The 8-MSOP package is a standard footprint; the 0.110" body width fits tight layouts, but the small pad means the soldering profile needs a good reflow oven, not a hot-air pencil.
ROHS3 compliant. Sourcing is straightforward through independent distribution — we quote against an RFQ with confirmed availability and current pricing at quote time. No need to stockpile or hunt for surplus.