Overview
The MSP430FR2355TPTR is a microcontroller unit (MCU) from Texas Instruments, part of the MSP430™ MCU value line portfolio. This ultra-low-power, low-cost device is designed for sensing and measurement applications. It features a 16-bit RISC CPU with a maximum clock speed of 24 MHz and operates over an extended temperature range from –40°C to 105°C. The MCU integrates advanced analog and digital peripherals, including smart analog combos, a 12-bit SAR ADC, and enhanced comparators. The device also includes low-power ferroelectric RAM (FRAM) for nonvolatile memory, supporting up to 32KB of program FRAM, 512 bytes of data FRAM, and 4KB of RAM.
Key Specifications
| Parameter | Specification |
|---|---|
| CPU Architecture | 16-bit RISC |
| Maximum Clock Speed | 24 MHz |
| Temperature Range | –40°C to 105°C |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Program FRAM | 32 KB |
| Data FRAM | 512 bytes |
| RAM | 4 KB |
| Analog-to-Digital Converter (ADC) | 12-bit SAR, 12 channels, 200 ksps |
| Comparators | Two enhanced comparators (eCOMP) |
| Digital-to-Analog Converter (DAC) | 6-bit DAC as reference voltage |
| Smart Analog Combos | Four SAC-L3 modules |
| Timers | Three 16-bit timers with three capture/compare registers each (Timer_B3), one 16-bit timer with seven capture/compare registers (Timer_B7) |
| Real-Time Clock (RTC) | 16-bit counter-only RTC |
| Package Options | 48-pin LQFP (PT), 40-pin VQFN (RHA), 38-pin TSSOP (DBT), 32-pin VQFN (RSM) |
Key Features
- High-Performance Analog: Includes a 12-bit SAR ADC, two enhanced comparators, and four smart analog combos that can be used as 12-bit DACs or configurable programmable-gain Op-Amps.
- Low-Power Modes: Configurable high-power and low-power modes, including LPM3, LPM3.5, and LPM4.5, with very low power consumption (e.g., 620 nA in LPM3.5 with SVS enabled).
- FRAM Memory: Up to 32 KB of nonvolatile FRAM memory with built-in error correction code (ECC) and configurable write protection.
- Intelligent Digital Peripherals: Includes three 16-bit timers, one 16-bit real-time clock counter, 16-bit cyclic redundancy checker (CRC), and a 32-bit hardware multiplier (MPY32).
- Enhanced Serial Communications: Supports UART, IrDA, SPI, and I2C through enhanced USCI_A and USCI_B modules.
- Radiation Resistant and Nonmagnetic: Suitable for applications requiring these properties.
Applications
- Smoke and Heat Detectors: Benefits from the extended temperature range and FRAM data-logging capabilities.
- Sensor Transmitters: Ideal for sensing and measurement applications due to its high-performance analog capabilities.
- Circuit Breakers: Can handle high-temperature industrial applications.
- Sensor Signal Conditioning: Utilizes smart analog combos for efficient signal processing.
- Wired Industrial Communications: Supports various communication protocols like UART, SPI, and I2C.
- Battery Pack Management: Low-power modes make it suitable for battery-powered devices.
- Toll Tags: Can be used in applications requiring low power and high reliability).
Q & A
- What is the maximum clock speed of the MSP430FR2355TPTR MCU?
The maximum clock speed is 24 MHz.
- What is the temperature range supported by the MSP430FR2355TPTR?
The temperature range is from –40°C to 105°C.
- What type of memory does the MSP430FR2355TPTR use?
The device uses low-power ferroelectric RAM (FRAM) for nonvolatile memory.
- How many channels does the ADC in the MSP430FR2355TPTR have?
The ADC is a 12-channel 12-bit SAR ADC.
- What are the power consumption characteristics of the MSP430FR2355TPTR in low-power modes?
The device consumes 1.43 µA in LPM3 with SVS enabled and 620 nA in LPM3.5 with SVS enabled.
- What are the package options available for the MSP430FR2355TPTR?
The package options include 48-pin LQFP (PT), 40-pin VQFN (RHA), 38-pin TSSOP (DBT), and 32-pin VQFN (RSM).
- Does the MSP430FR2355TPTR support any development kits?
Yes, it is supported by the MSP-EXP430FR2355 LaunchPad development kit and the MSP-TS430PT48 48-pin target development board.
- What software support is available for the MSP430FR2355TPTR?
Texas Instruments provides free MSP430Ware software and support through Code Composer Studio IDE.
- What are some of the key applications for the MSP430FR2355TPTR?
Key applications include smoke and heat detectors, sensor transmitters, circuit breakers, and battery pack management.
- Does the MSP430FR2355TPTR have any radiation-resistant features?
Yes, the device is radiation resistant and nonmagnetic.
