25 MHz CPUXV2 — throughput ceiling for a 16-bit signal-chain MCU
The MSP430F5152IRSBT is a 16-bit microcontroller from the MSP430F5xx family, built around the CPUXV2 core clocked at 25 MHz. This core includes a hardware multiplier and a three-stage pipeline — the 25 MHz ceiling sets the interrupt latency and the sustained throughput for a single-loop control or sensor-fusion task without an RTOS overhead. On-chip memory consists of 16 KB flash (16K x 8) and 2 KB SRAM (2K x 8). The flash holds the application firmware and constant tables; the 2 KB SRAM is the working memory for stack, variables, and ADC result buffers. For a typical sensor hub reading 11 analog channels at 10-bit resolution and logging via UART, the SRAM budget supports a double-buffered output queue of about 1 KB without external RAM.
Industrial temperature grade and peripheral set — deployment context
The peripheral set includes a 11-channel 10-bit ADC, brown-out detect, POR, DMA, PWM, and WDT. Connectivity covers I²C, IrDA, SCI, SPI, and UART/USART — enough to interface a digital temperature sensor over I²C, a SPI flash for data logging, and a UART bridge to a host controller, all without external level shifters within the 1.8–3.6 V range. The 31 available I/O lines leave headroom after allocating the ADC inputs and serial interfaces — a typical sensor-hub design uses about 18 I/O, leaving 13 for expansion or GPIO.
This means the part is supported for new designs, the manufacturer continues to accept orders, and the datasheet and errata are maintained. The tape-and-reel packaging (TR) is the standard production format; cut tape (CT) is available for prototyping or small-batch builds.