Texas Instruments has marked the MSP430F2370IYFFR as Obsolete. Available through independent distribution channels — quantities and current pricing confirmed at RFQ. The 49-DSBGA (2.8x2.8 mm) package is a fine-pitch BGA that requires a controlled reflow profile and X-ray inspection post-assembly.
16 MHz MSP430 core with 32 KB flash
The MSP430 CPU16 core runs at 16 MHz — the 16-bit RISC architecture delivers about 16 MIPS at that clock, enough for sensor polling, PID loops, and serial protocol handling in a single-threaded control application. On-chip memory consists of 32 KB of flash (32K x 8 + 256B) and 2 KB of SRAM (2K x 8). The flash is segmented for wear-leveled firmware updates; the 2 KB SRAM limits data buffers to small packet sizes — budget the stack and interrupt context before committing to this part for a communication-heavy design.
32 general-purpose I/O pins connect to sensors, switches, and small displays. The integrated peripherals include brown-out detect, POR, PWM, and a watchdog timer — enough to run a standalone control loop without external supervisor ICs. Serial connectivity covers I2C, SPI, UART/USART, LINbus, IrDA, and SCI. The slope A/D converter is a low-cost analog front-end — it works for slow-varying signals like temperature or battery voltage but lacks the resolution and sampling rate of a SAR or sigma-delta ADC for precision measurement. The internal oscillator eliminates the external crystal for many applications, though the accuracy is sufficient for UART baud-rate generation, not for high-precision timing.