3x24-bit sigma-delta ADC in a 24-TSSOP
What sets it apart in a 24-TSSOP footprint is the three 24-bit sigma-delta ADCs — that is the kind of precision you expect from a standalone converter, not a low-pin-count microcontroller. It is built for sensor-front-end jobs where you need to read a thermocouple, a strain gauge, or a pressure transducer directly, without an external ADC and the extra board area that comes with it.
12 MHz — fast enough for control loops, not for number crunching
The 12 MHz core clock is the sweet spot for this class: it runs a PID loop, polls the ADC at a few kilohertz, and handles SPI or UART communication without breaking a sweat. The firmware stays lean — state machines, lookup tables, and direct register manipulation.
Brown-out detect and the watchdog are on-chip, so a glitchy supply does not corrupt the Flash or lock up the core.
Active lifecycle — no LTB worry
No last-time-buy clock ticking, no scramble for obsolete-stock brokers.