Overview
The MSP430FR2311IPW20R is a 16-bit mixed-signal microcontroller from Texas Instruments, part of the MSP430™ MCU value line sensing family. This device features a powerful 16-bit RISC CPU, 16-bit registers, and a constant generator, contributing to maximum code efficiency. It integrates a configurable low-leakage transimpedance amplifier (TIA) and a general-purpose operational amplifier, making it well-suited for various sensing and measurement applications. The microcontroller is optimized for low-power modes, achieving extended battery life in portable and wireless sensing applications. It also includes low-power ferroelectric RAM (FRAM) for nonvolatile memory, enhancing its reliability and endurance.
Key Specifications
| Specification | Value |
|---|---|
| Microcontroller Architecture | 16-bit RISC |
| Maximum Clock Speed | 16 MHz |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Package Type | 20-pin TSSOP (PW20) |
| Operating Temperature Range | -40°C to 85°C |
| Nonvolatile Memory | Up to 3.75 KB FRAM |
| RAM | 1 KB |
| Analog-to-Digital Converter (ADC) | 8-channel, 10-bit, 200 ksps |
| Digital-to-Analog Converter (DAC) | 6-bit |
| Timers | Two 16-bit timers with three capture/compare registers each |
| Serial Communications | Enhanced USCI A (UART, IrDA, SPI), Enhanced USCI B (SPI, I2C) |
| Low-Power Modes | Active: 126 µA/MHz, Standby (LPM3.5): 0.71 µA, Shutdown (LPM4.5): 32 nA |
Key Features
- Embedded microcontroller with 16-bit RISC architecture up to 16 MHz
- Wide supply voltage range from 3.6 V down to 1.8 V
- Optimized low-power modes for extended battery life
- High-performance analog peripherals:
- Transimpedance amplifier (TIA) with current-to-voltage conversion and rail-to-rail output
- General-purpose operational amplifier with rail-to-rail input and output
- 8-channel 10-bit analog-to-digital converter (ADC) with internal 1.5-V reference
- Enhanced comparator (eCOMP) with programmable hysteresis
- Integrated 6-bit digital-to-analog converter (DAC) as reference voltage
- Low-power ferroelectric RAM (FRAM) with up to 3.75 KB of nonvolatile memory, built-in error correction code (ECC), and configurable write protection
- Intelligent digital peripherals:
- IR modulation logic
- Two 16-bit timers with three capture/compare registers each (Timer_B3)
- One 16-bit counter-only RTC counter
- 16-bit cyclic redundancy checker (CRC)
- Enhanced serial communications: Enhanced USCI A (UART, IrDA, SPI) and Enhanced USCI B (SPI, I2C)
- Clock system with on-chip oscillators (REFO, DCO, VLO, MODOSC) and external crystal oscillators (LFXT, HFXT)
- General input/output and pin functionality with 16 I/Os on 20-pin package and capacitive touch I/Os
Applications
- Smoke detectors
- Power banks
- Portable health and fitness accessories
- Power monitoring
- Personal electronics
Q & A
- What is the maximum clock speed of the MSP430FR2311IPW20R?
The maximum clock speed is 16 MHz.
- What is the supply voltage range for the MSP430FR2311IPW20R?
The supply voltage range is from 1.8 V to 3.6 V.
- What type of nonvolatile memory does the MSP430FR2311IPW20R use?
The device uses low-power ferroelectric RAM (FRAM) with up to 3.75 KB of nonvolatile memory.
- What are the key analog peripherals of the MSP430FR2311IPW20R?
The key analog peripherals include a transimpedance amplifier (TIA), a general-purpose operational amplifier, an 8-channel 10-bit ADC, an enhanced comparator (eCOMP), and a 6-bit DAC.
- What are the low-power modes available on the MSP430FR2311IPW20R?
The device features active mode (126 µA/MHz), standby mode (LPM3.5 with 0.71 µA), and shutdown mode (LPM4.5 with 32 nA).
- What development tools are available for the MSP430FR2311IPW20R?
Development tools include the MSP‑EXP430FR2311 LaunchPad™ development kit and the MSP‑TS430PW20 target development board.
- What serial communication interfaces are supported by the MSP430FR2311IPW20R?
The device supports Enhanced USCI A (UART, IrDA, SPI) and Enhanced USCI B (SPI, I2C).
- What is the operating temperature range of the MSP430FR2311IPW20R?
The operating temperature range is from -40°C to 85°C.
- How many I/O pins does the MSP430FR2311IPW20R have?
The device has 16 I/O pins on a 20-pin package.
- What is the purpose of the FRAM in the MSP430FR2311IPW20R?
The FRAM provides nonvolatile memory with built-in error correction code (ECC) and configurable write protection, combining the speed and endurance of SRAM with the stability of flash.
