Overview
The MSP430FR2355TRSMR is a part of the MSP430™ MCU value line portfolio from Texas Instruments, designed for ultra-low-power and low-cost sensing and measurement applications. This microcontroller integrates advanced analog and digital capabilities, making it suitable for a wide range of industrial and consumer applications. The device features a 16-bit RISC architecture operating up to 24 MHz, an extended temperature range of –40°C to 105°C, and a wide supply voltage range from 3.6 V down to 1.8 V. The MSP430FR2355TRSMR is particularly notable for its low-power modes and the use of ferroelectric RAM (FRAM), which combines the benefits of RAM and flash memory.
Key Specifications
| Specification | Details |
|---|---|
| Architecture | 16-bit RISC architecture up to 24 MHz |
| Temperature Range | –40°C to 105°C |
| Supply Voltage | 3.6 V down to 1.8 V (operational voltage restricted by SVS levels) |
| Low-Power Modes |
|
| Memory | Up to 32KB of nonvolatile FRAM, 20KB ROM library |
| Analog-to-Digital Converter (ADC) | One 12-channel 12-bit SAR ADC, internal shared reference (1.5, 2.0, or 2.5 V), sample-and-hold 200 ksps |
| Comparators | Two enhanced comparators (eCOMP) |
| Smart Analog Combos | Four configurable signal-chain modules (SAC-L3), each can be used as a 12-bit DAC or a configurable programmable-gain Op-Amp |
Key Features
- Embedded microcontroller with 16-bit RISC architecture up to 24 MHz
- Extended temperature range from –40°C to 105°C
- Wide supply voltage range from 3.6 V down to 1.8 V
- Optimized low-power modes, including active, standby, and shutdown modes
- Low-power ferroelectric RAM (FRAM) with up to 32KB of nonvolatile memory, built-in error correction code (ECC), and configurable write protection
- Unified memory for program, constants, and storage
- High-performance analog capabilities, including a 12-channel 12-bit SAR ADC and two enhanced comparators
- Four configurable smart analog combos (SAC-L3) that can be used as 12-bit DACs or programmable-gain Op-Amps
- Radiation resistant and nonmagnetic
- 20KB ROM library including driver libraries and FFT libraries
Applications
- Smoke and heat detectors
- Sensor transmitters
- Circuit breakers
- Sensor signal conditioning
- Wired industrial communications
- Optical modules
- Battery pack management
- Toll tags
Q & A
- What is the operating temperature range of the MSP430FR2355TRSMR?
The operating temperature range is from –40°C to 105°C.
- What is the maximum frequency of the 16-bit RISC architecture?
The maximum frequency is up to 24 MHz.
- What types of memory does the MSP430FR2355TRSMR have?
The device has up to 32KB of nonvolatile FRAM and a 20KB ROM library.
- What are the key features of the smart analog combos in the MSP430FR2355TRSMR?
Each smart analog combo can be used as a 12-bit DAC or a configurable programmable-gain Op-Amp.
- What are some of the low-power modes available in the MSP430FR2355TRSMR?
The device supports active mode, standby modes (LPM3 and LPM3.5), and shutdown mode (LPM4.5).
- What is the purpose of the FRAM technology in the MSP430FR2355TRSMR?
FRAM technology combines the low-energy fast writes, flexibility, and endurance of RAM with the nonvolatile behavior of flash.
- What development tools are available for the MSP430FR2355TRSMR?
Development kits include the MSP-EXP430FR2355 LaunchPad™ and the MSP-TS430PT48 48-pin target development board. Additionally, TI provides free MSP430Ware™ software.
- What types of applications can the MSP430FR2355TRSMR be used for?
The device is suitable for applications such as smoke detectors, sensor transmitters, circuit breakers, and more.
- How does the MSP430FR2355TRSMR reduce BOM and PCB size?
The device integrates four configurable signal-chain modules (smart analog combos) that can replace multiple discrete components, reducing the BOM and PCB size.
- What is the significance of the digitally controlled oscillator (DCO) in the MSP430FR2355TRSMR?
The DCO allows the device to wake up from low-power modes to active mode typically in less than 10 µs.
