What the ±0.5°C accuracy means on your board
The TMP112BIDRLT is a digital local temperature sensor from Texas Instruments with 12-bit resolution and an I²C/SMBus interface. That ±1°C max is the number to use in your error budget — the typical figure is a single-sample best case, not a production guarantee.
Supply voltage and interface flexibility
Supply range is 1.4V to 3.6V, which lets you run the sensor directly from a 1.8V or 3.3V rail, or even a single lithium coin cell, without an extra LDO. The 2-wire I²C/SMBus output keeps the pin count low — two lines for clock and data, plus VDD and GND, in a SOT-563 package.
Package and mounting for space-constrained designs
The SOT-563 (also listed as SOT-666) with supplier device package SOT-5X3 is a tiny surface-mount footprint — roughly 1.6 mm × 1.6 mm. The small size suits wearable, IoT, and portable equipment where PCB real estate is tight. The part is ROHS3 compliant.