The MSP430F2001IPW: This is a part for sensor-node control, simple I²C or SPI slaves, battery-monitor state machines, and any application where the firmware fits in a kilobyte and the power budget is measured in microamps. The 10 general-purpose I/O lines and integrated slope ADC cover basic analog sensing without an external converter.
1 KB Flash — firmware budget is tight
With 1 KB of Flash and 128 bytes of RAM, this MCU is not for complex protocol stacks or data logging. It fits a single control loop, a few register-configurable peripherals (brown-out reset, POR, PWM, watchdog timer), and a small lookup table. The internal oscillator saves two pins and a crystal, but the clock accuracy is trimmed at the factory — good enough for UART bit rates up to 9600 baud without external components. If your BOM needs more headroom, the MSP430F2xx family offers pin-compatible parts with up to 16 KB Flash; the MSP430F2011IPW is the next step up with 2 KB Flash and the same 14-TSSOP footprint.
14-TSSOP — rework and footprint notes
It reflows cleanly with a typical lead-free profile, and the 0.65 mm pitch is hand-reworkable with hot air if you have a fine tip and steady hands — the pins are visible enough to align by eye. There is no exposed thermal pad, so all heat dissipation goes through the leads; keep the ambient below 85°C if you push the I/O near the 6 mA per-pin limit. The supplier device package is 14-TSSOP, and the mounting is surface mount only.
Lifecycle — still active, no obsolescence risk
It is ROHS3 compliant. The base product number is MSP430F2001, and the series is MSP430F2xx.