Texas Instruments MSP430FR247x Mixed Signal Microcontrollers (MCUs)

Texas Instruments MSP430FR247x Mixed Signal Microcontrollers (MCUs) are part of the MSP430™ MCU value line portfolio of ultra-low-power, low-cost devices for sensing and measurement applications. MSP430FR247x MCUs integrate a 12-bit SAR ADC and one comparator. The MSP430FR247x MCUs support an extended temperature range from –40°C to 105°C so that higher temperature industrial applications can benefit from the devices’ FRAM data-logging capabilities.

The MSP430 ultra-low-power (ULP) FRAM microcontroller platform combines uniquely embedded FRAM and holistic ultra-low-power system architecture, allowing 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 TI MSP430 family of low-power microcontrollers consists of devices with 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, contributing to maximum code efficiency. The digitally controlled oscillator (DCO) allows the MCU to wake up from low-power to active mode in less than 10µs (typical).

Features

Embedded microcontroller
- 16-bit RISC architecture
- Clock supports frequencies up to 16MHz
- Wide supply voltage range from 3.6V down to 1.8V (minimum supply voltage is restricted by SVS levels)
Optimized ultra-low-power modes
- Active mode: 135µA/MHz (typical)
- Standby: LPM3.5, real-time clock (RTC) counter with 32768Hz crystal: 660nA (typical)
- Shutdown (LPM4.5): 37nA without SVS
Low-power ferroelectric RAM (FRAM)
- Up to 64KB 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 non-magnetic
Intelligent digital peripherals
Enhanced serial communications with support for pin remap feature
High-performance analog
- One 12-bit analog-to-digital converter (ADC) with up to 12 channels
- One enhanced comparator (eCOMP)

Clock system (CS)
- On-chip 32kHz RC oscillator (REFO) with 1µA support
- On-chip 16MHz digitally controlled oscillator (DCO) with frequency-locked loop (FLL)
- On-chip very low-frequency 10kHz oscillator (VLO)
- On-chip high-frequency modulation oscillator (MODOSC)
- External 32kHz crystal oscillator (LFXT)
- Programmable MCLK pre-scalar of 1 to 128
- SMCLK derived from MCLK with programmable pre-scalar of 1, 2, 4, or 8
General input/output and pin functionality
- 43 I/Os on the LQFP-48 package
- 43 interrupt pins on all GPIOs can wake MCU from low-power modes
Family members
- MSP430FR2476: 64KB of program FRAM, 512B of information FRAM, 8KB of RAM
- MSP430FR2475: 32KB of program FRAM, 512B of information FRAM, 4KB of RAM
Package options
- 48-pin: LQFP (PT)
- 40-pin: VQFN (RHA)
- 32-pin: VQFN (RHB)