MSP430F1101 is not recommended for new designs.
This product continues to be in production to support existing customers. Please consider one of these alternatives:
Same functionality and pinout but is not an equivalent to the compared device:
MSP430F1101A ACTIVE 8 MHz MCU with 1KB FLASH, 128B SRAM, Timer, Comparator This product is a microcontroller with the same memory, peripheral, and pin-out configuration while incorporating several errata improvements.