16-bit MSP430 for low-power control — 1 KB Flash, 8 MHz core
It carries 1 KB of program Flash and 128 bytes of RAM, runs at up to 8 MHz, and includes 14 general-purpose I/O lines plus on-chip peripherals: a power-on-reset (POR), a PWM timer, and a watchdog timer (WDT).
20-SOIC wide-body — footprint and reflow notes
The 1.27 mm pitch leaves room for manual rework if needed. Check the MSL before the reflow oven — the tape-and-reel delivery (the 'R' suffix) is the standard production format, but the moisture sensitivity level governs bake requirements if the sealed bag has been opened beyond its floor-life window.
No official direct replacement has been listed by TI for this specific order code. Supply is limited to remaining factory stock and surplus inventory held by independent distributors.