1.1 Features

• Embedded microcontroller
  • 16-bit RISC architecture up to 16 MHz
  • Wide supply voltage range from 3.6 V down to 1.8 V (minimum supply voltage is restricted by SVS levels, see the SVS Specifications)
• Optimized low-power modes (at 3 V)
  • Active mode: 126 µA/MHz
  • Standby: real-time clock (RTC) counter (LPM3.5 with 32768-Hz crystal): 0.71 µA
  • Shutdown (LPM4.5): 32 nA without SVS
• High-performance analog
  • Transimpedance amplifier (TIA) ⁽¹⁾
    • Current-to-voltage conversion
    • Half-rail input
    • Low-leakage negative input down to 5 pA, enabled on TSSOP16 package only
    • Rail-to-rail output
    • Multiple input selections
    • Configurable high-power and low-power modes
  • 8-channel 10-bit analog-to-digital converter (ADC)
    • Internal 1.5-V reference
    • Sample-and-hold 200 ksps
  • Enhanced comparator (eCOMP)
    • Integrated 6-bit digital-to-analog converter (DAC) as reference voltage
    • Programmable hysteresis
    • Configurable high-power and low-power modes
  • Smart analog combo (SAC-L1)
    • Supports general-purpose op amp
    • Rail-to-rail input and output
    • Multiple input selections
    • Configurable high-power and low-power modes
  1. The transimpedance amplifier was originally given an abbreviation of TRI in descriptive text, pin names, and register names. The abbreviation has changed to TIA in all descriptive text, but pin names and register names still use TRI.
• Low-power ferroelectric RAM (FRAM)
  • Up to 3.75KB of nonvolatile memory
  • Built-in error correction code (ECC)
  • Configurable write protection
  • Unified memory of program, constants, and storage
  • 10¹⁵ write cycle endurance
  • Radiation resistant and nonmagnetic
• Intelligent digital peripherals
  • IR modulation logic
  • Two 16-bit timers with three capture/compare registers each (Timer_B3)
  • One 16-bit counter-only RTC counter
  • 16-bit cyclic redundancy checker (CRC)
• Enhanced serial communications
  • Enhanced USCI A (eUSCI_A) supports UART, IrDA, and SPI
  • Enhanced USCI B (eUSCI_B) supports SPI and I²C with support for remap feature (see Signal Descriptions)
• Clock system (CS)
  • On-chip 32-kHz RC oscillator (REFO)
  • On-chip 16-MHz digitally controlled oscillator (DCO) with frequency locked loop (FLL)
    • ±1% accuracy with on-chip reference at room temperature
  • On-chip very low-frequency 10-kHz oscillator (VLO)
  • On-chip high-frequency modulation oscillator (MODOSC)
  • External 32-kHz crystal oscillator (LFXT)
  • External high-frequency crystal oscillator up to 16 MHz (HFXT)
  • Programmable MCLK prescalar of 1 to 128
  • SMCLK derived from MCLK with programmable prescalar of 1, 2, 4, or 8
• General input/output and pin functionality
  • 16 I/Os on 20-pin package
  • 12 interrupt pins (8 pins of P1 and 4 pins of P2) can wake MCU from LPMs
  • All I/Os are capacitive touch I/Os
• Development tools and software
  • LaunchPad™ development kit (MSP‑EXP430FR2311)
  • Target development board (MSP‑TS430PW20)
• Family members (also see Device Comparison)
  • MSP430FR2311: 3.75KB of program FRAM and 1KB of RAM
  • MSP430FR2310: 2KB of program FRAM and 1KB of RAM
• Package options
  • 20-pin TSSOP (PW20)
  • 16-pin TSSOP (PW16)
  • 16-pin VQFN (RGY16)