Three 24-bit ADCs on a 16-bit core — the metering specialist
Supply voltage is 1.8 V to 3.6 V. Operating temperature is -40°C to 85°C. Packaged in a 24-TSSOP (4.40 mm wide), it offers 11 general-purpose I/O lines plus SPI and UART/USART serial interfaces. An internal oscillator keeps the BOM lean — no external crystal needed for many applications.
12 MHz — enough for a 3-channel ADC read-and-process loop
The 12 MHz clock is modest by modern MCU standards, but it's more than adequate for the part's intended role: reading three 24-bit ADC conversions, performing a multiply-accumulate for power calculation, and outputting a result over SPI or UART. The 8 KB Flash holds the measurement firmware; the 512-byte RAM handles a few hundred samples of buffer. This isn't a part for complex GUI or Ethernet stacks — it's a lean, deterministic measurement engine.
Active lifecycle — stable for BOM planning
The MSP430AFE233IPW has active product status from Texas Instruments.