• Embedded Microcontroller
  • 16-Bit RISC Architecture
  • Clock Supports Frequencies up to 16 MHz
  • Wide Supply Voltage Range From 1.8V to 3.6V
• Optimized Ultra-Low-Power Modes
  • Active Mode: 126 µA/MHz (Typical)
  • Standby: <1 µA With VLO
  • LPM3.5 Real-Time Clock (RTC) Counter With 32768-Hz Crystal: 770 nA (Typical)
  • Shutdown (LPM4.5): 15 nA (Typical)
• Low-Power Ferroelectric RAM (FRAM)
  • Up to 15.5KB 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
  • High FRAM to SRAM Ratio, up to 4:1
• Intelligent Digital Peripherals
  • Four 16-Bit Timers
    • Two Timers With Three Capture/Compare Registers Each (Timer_A3)
    • Two Timers With Two Capture/Compare Registers Each (Timer_A2)
  • One 16-Bit Counter-Only RTC
  • 16-Bit Cyclic Redundancy Check (CRC)
• Enhanced Serial Communications
  • Two Enhanced Universal Serial Communication Interfaces (eUSCI_A) Support UART, IrDA, and SPI
  • One eUSCI (eUSCI_B) Supports SPI and I2C
• High-Performance Analog
  • 8-Channel 10-Bit Analog-to-Digital Converter (ADC)
    • Internal 1.5-V Reference
    • Sample-and-Hold 200 ksps
• 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)
  • 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
  • Total of 19 I/Os on QFN-24 Package
  • 16 Interrupt Pins (P1 and P2) Can Wake MCU From Low-Power Modes
• Development Tools and Software
  • Free Professional Development Environments
  • Development Kit (MSP-TS430RGE24A)
• Family Member (Also See Section 3)
  • MSP430FR2433: 15KB of Program FRAM + 512B of Information FRAM + 4KB of RAM
• Package Options
  • 24-Pin: VQFN (RGE)
• For Complete Module Descriptions, See the MSP430FR4xx and MSP430FR2xx Family User's Guide (SLAU445)

• Small Form Factor Industrial Sensors
• Low-Power Medical, Health, and Fitness
• Electronic Door Locks
• Energy Harvesting

The MSP430FR2433 is an ultra-low-power MSP430FRx FRAM-based microcontroller (MCU). MSP ultra-low-power microcontrollers from TI offer the lowest power consumption and the perfect mix of integrated peripherals for a wide range of low-power and portable applications. These MCUs are ideal in applications where the majority of the microcontroller life is spent in standby. The latest addition to this family is the series of MSP430FRx FRAM-based MCUs, which offer extended data logging and security capabilities. The MSP430FR2433 offers the small VQFN package (4mm × 4 mm) in the FRAM microcontroller portfolio, combined with a variety of integrated peripherals and ultra-low power consumption.

The TI MSP family of low-power microcontrollers consists of several devices that feature different sets of peripherals targeted for various applications. The architecture, combined with extensive low-power modes, is optimized to achieve extended battery life in portable measurement applications. The MCU features a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that contribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows the MCU to wake up from low-power modes to active mode typically in less than 10 µs.