20 MHz 16-bit MSP430 with integrated mixed-signal — what you get
The 128 KB Flash (128K x 8) is enough for a moderate application stack — think a sensor fusion algorithm with a communication protocol, plus a bootloader for field updates. The 10 KB RAM (10K x 8) handles real-time data buffering; for a 16-bit ADC sampling at moderate rates, you can store several seconds of raw readings before processing or transmitting. If your design needs more memory for a GUI or extensive lookup tables, you'll want to step up to a larger member of the MSP430F6xx family, but for most single-sensor or multi-sensor hub applications, this is a balanced fit.
The 73 I/O lines give you plenty of headroom for parallel interfaces, keypad matrices, or driving an external LCD segment driver (the peripheral set includes LCD drive support).
Sourcing through independent distribution is straightforward; we can quote current availability and pricing against an RFQ.