MSP430FR2353 Ultra-Low-Power Low-Cost MSP430™ MCU

By Texas Instruments 61

MSP430FR2353 Ultra-Low-Power Low-Cost MSP430™ MCU

Texas Instruments' MSP430FR2353 MCU is part of the MSP430 MCU value line portfolio of ultra-low-power low-cost devices designed for sensing and measurement applications. The MSP430FR2353 MCU integrates four configurable signal-chain modules called smart analog combos, each of which can be used as a 12-bit DAC or a configurable programmable-gain op-amp to meet the needs of a system while reducing the BOM and the PCB size. The device includes a 12-bit SAR ADC and two comparators. The MCU supports an extended temperature range of -40°C to +105°C allowing higher temperature industrial applications to benefit from the devices’ ferroelectric RAM (FRAM) data-logging capabilities. The temperature range makes the MCU ideal for applications such as smoke detectors, sensor transmitters, and circuit breakers.

The MSP430FR2353 MCU features a 16-bit RISC CPU, 16-bit registers, and a constant generator that contribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows the device to wake up from low-power modes to active-mode typically in less than 10 µs.

The MSP430 ultra-low-power (ULP) FRAM MCU platform combines embedded FRAM and a holistic ultra-low-power system architecture which allows system designers to increase performance while lowering energy consumption. FRAM technology combines the low-energy fast writes, flexibility, and endurance of RAM with the nonvolatile behavior of Flash.

The MSP430FR2353 MCU is supported by an extensive hardware and software ecosystem with reference designs and code examples to get a user's design started quickly. Development kits include the MSP-EXP430FR2355 LaunchPad™ kit and the MSP-TS430PT48 48-pin target board. TI provides free MSP430Ware™ software, which is available as a component of Code Composer Studio™ IDE desktop and cloud versions within the TI Resource Explorer. The MCU is supported by extensive online collateral, training, and online support through the E2E™ community forum.

  • 16-bit RISC architecture up to 24 MHz
  • Temperature range: -40°C to +105°C
  • Optimized low-power modes (at 3 V): active (142 µA/MHz), standby, and shutdown
  • Low-power FRAM:
    • Nonvolatile memory: up to 32 KB
    • Built-in error correction code (ECC)
    • Configurable write protection
  • 20 KB ROM library includes driver/FFT libraries for ease of use
  • High-performance analog:
    • One 12-channel 12-bit ADC
    • Four smart analog combos (SAC-L3)
    • Configurable high/low power modes and PGA mode support
    • Built-in 12-bit reference DAC for offset and bias settings
    • 12-bit voltage DAC mode with optional references
  • Clock system (CS):
    • On-chip 32 kHz RC oscillator (REFO)
    • On-chip 24 MHz DCO with frequency locked loop (FLL)
  • General input/output and pin functionality
  • Development tools and software
  • Intelligent digital peripherals:
    • Three 16-bit timers with three capture/compare registers each (Timer_B3)
    • One 16-bit timer with seven capture/compare registers each (Timer_B7)
    • One 16-bit counter-only real-time clock counter (RTC)
    • 16-bit cyclic redundancy checker (CRC)
    • Interrupt compare controller (ICC) enabling nested hardware interrupts
    • 32-bit hardware multiplier (MPY32)
    • Manchester codec (MFM)
  • Enhanced serial communications:
    • Two enhanced USCI_A (eUSCI_A) modules support UART, IrDA, and SPI
    • Two enhanced USCI_B (eUSCI_B) modules support SPI and I2C
  • Package: 38-pin TSSOP (DBT)
  • Smoke and heat detectors
  • Sensor transmitters
  • Circuit breakers
  • Sensor signal conditioning
  • Wired industrial communications
  • Optical modules
  • Battery pack management
  • Toll tags