TI MSP430FR2311IPW20

MSP430FR231x FRAM microcontroller (MCU) belongs to the MSP430™ MCU value series detection series. These devices integrate a configurable low-leakage transimpedance amplifier (TIA) and a general-purpose operational amplifier. The MCU has a powerful 16-bit RISC CPU, 16-bit registers, and a constant generator, which helps to achieve maximum coding efficiency. The digitally controlled oscillator (DCO) also allows the device to wake up from a low-power mode to an active mode in less than 10µs. The feature set of these MCUs is well-suited for a variety of applications from smoke detectors to portable medical and fitness accessories.

The ultra-low-power MSP430FR231x MCU series includes a variety of devices equipped with embedded non-volatile FRAM and different peripheral sets, suitable for digital input Class D audio amplifiers in various detection and measurement applications. The architecture, FRAM, and peripherals combined with multiple low-power modes are optimized for extending battery life in portable wireless sensing applications. FRAM is a non-volatile memory technology that combines the speed, flexibility, and durability of SRAM with the stability and reliability of flash memory, and has lower overall power consumption.

The MSP430FR231x MCU is supported by an ecosystem of various software and hardware resources, and comes with reference designs and code examples to help you quickly start your design. Development kits include the MSP-EXP430FR2311 LaunchPad™ development kit and the MSP-TS430PW20 20-pin target development board. TI offers free MSP430Ware™ software as a component of the Code Composer Studio™ IDE desktop and cloud versions (located in the TI Resource Explorer). The MSP430 MCU also provides extensive online support materials, training, and online support through the E2E™ community forum.

• Embedded microcontroller
  • 16-bit Reduced Instruction Set Computer (RISC) architecture with frequencies up to 16MHz
  • Wide power supply voltage range from 3.6V to 1.8V (the lowest power supply voltage is limited by the SVS level, refer to the SVS specifications)
• Optimized low-power modes (at 3V)
  • Active mode: 126µA/MHz
  • Standby mode: Real-time clock (RTC) counter (LPM3.5, using a 32768Hz crystal oscillator) 0.71µA
  • Shutdown mode (LPM4.5): 32nA (without SVS)
• High-performance analog
  • Transimpedance amplifier (TIA)
    • Current-to-voltage conversion
    • Half-rail input
    • For the TSSOP16 package only, reduces the low-leakage negative input to 5pA
    • Rail-to-rail output
    • Multiple input signal options
    • Configurable high-power and low-power modes
  • 8-channel 10-bit analog-to-digital converter (ADC)
    • Internal reference voltage of 1.5V
    • Sampling and holding at 200ksps
  • Enhanced comparator (eCOMP)
    • Integrated 6-bit digital-to-analog converter (DAC) as the reference voltage
    • Programmable hysteresis
    • Configurable high-power and low-power modes
  • Smart analog combination (SAC-L1)
    • Supports general-purpose operational amplifiers
    • Rail-to-rail input and output
    • Multiple input signal options
    • Configurable high-power and low-power modes
• Low-power ferroelectric RAM (FRAM)
  • Non-volatile memory capacity up to 3.75KB
  • Built-in error correction code (ECC)
  • Configurable write protection
  • Unified storage for programs, constants, and storage
  • Write endurance up to 10 to the power of 15 times
  • Radiation-resistant and non-magnetic
• Smart digital peripherals
  • Infrared modulation logic
  • Two 16-bit timers, each with 3 capture/compare registers (Timer_B3)
  • One 16-bit RTC counter used only as a counter
  • 16-bit cyclic redundancy checker (CRC)
• Enhanced serial communication
  • Enhanced USCI A (eUSCI_A) supports UART, IrDA, and SPI
  • Enhanced USCI B (eUSCI_B) supports SPI and I2C and provides remapping functionality (refer to the signal description)
• Clock system (CS)
  • On-chip 32kHz RC oscillator (REFO)
  • On-chip 16MHz digitally controlled oscillator (DCO) with a frequency-locked loop (FLL)
  • Accuracy of ±1% at room temperature (with an on-chip reference)
  • On-chip ultra-low-frequency 10kHz oscillator (VLO)
  • On-chip high-frequency modulation oscillator (MODOSC)
  • External 32kHz crystal oscillator (LFXT)
  • External high-frequency crystal oscillator with frequencies up to 16MHz (HFXT)
  • Programmable MCLK prescaler (1 to 128)
  • SMCLK obtained from MCLK through a programmable prescaler (1, 2, 4, or 8)
• General-purpose input/output and pin functions
  • 16 I/O in a 20-pin package
  • 12 interrupt pins (8 P1 pins and 4 P2 pins) can wake the MCU from LPM
  • All I/O are capacitive touch I/O
• Development tools and software
  • LaunchPad™ development kit (MSP-EXP430FR2311)
  • Target development board (MSP-TS430PW20)

• Smoke detectors
• Mobile power supplies
• Portable health and fitness devices
• Power monitoring
• Personal electronics