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Texas Instruments MSP430FR4131IPMR
- Part No.:
- MSP430FR4131IPMR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MSP430FR4131IPMR.pdf
- Description:
- IC MCU 16BIT 4.5KB FRAM 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,199
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Product details
Overview
MSP430FR4131IPMR from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 4KB program FRAM + 512B information FRAM + 512B RAM, integrated 10-bit 200 ksps ADC, and low-power LCD driver supporting up to 4×36 or 8×32 segments. It operates from 1.8 V to 3.6 V and delivers 126 µA/MHz active current at 3 V, targeting battery-powered metering and portable health devices.
For engineers reviewing the MSP430FR4131IPMR datasheet, MSP430FR4131IPMR pinout, MSP430FR4131IPMR application, or MSP430FR4131IPMR equivalent, key selection criteria include FRAM endurance (10¹⁵ write cycles), LPM3.5 shutdown current (15 nA), capacitive touch I/O capability, RTC support in standby, and compatibility with TI's MSP-EXP430FR4133 LaunchPad™ development kit.
Technical Context
The MSP430FR4131IPMR implements a 16-bit RISC CPU with constant generators for code efficiency and integrates a digitally controlled oscillator (DCO) with FLL for ±1% accuracy at room temperature. Its clock system includes REFO (32 kHz), VLO (10 kHz), MODCLK, and external XT1 crystal support.
It features two Timer_A3 modules (each with three capture/compare registers), eUSCI_A0 (UART/IrDA/SPI) and eUSCI_B0 (SPI/I²C), CRC16 engine, and a unified memory architecture where FRAM serves as program, data, and storage space - eliminating separate flash and RAM partitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 registers and constant generators for optimized code density and execution efficiency |
| Memory Configuration | 4KB program FRAM + 512B information FRAM + 512B RAM - unified nonvolatile memory enabling instant write, high endurance (10¹⁵ cycles), and no erase-before-write overhead |
| ADC Performance | 10-channel 10-bit SAR ADC with 200 ksps sample rate and internal 1.5-V reference - supports precision analog sensing without external reference components |
| Low-Power Modes | Active mode: 126 µA/MHz; Standby (LPM3.5): <1 µA with RTC + LCD active; Shutdown (LPM4.5): 15 nA - enables multi-year battery life in intermittent-read applications |
| LCD Driver | On-chip charge pump supports 4×36 or 8×32 segment LCD in LPM3.5; software-configurable SEG/COM pins and 2.6–3.5 V contrast control in 0.06-V steps |
| Package & I/O | 64-pin LQFP (PM); 60 general-purpose I/Os - all support capacitive touch sensing and 16 pins (P1/P2) provide interrupt/wakeup capability from all low-power modes |
Pinout & Package
Package: 64-pin LQFP (PM), 10 mm × 10 mm body size, standard JEDEC-compliant footprint with exposed thermal pad (per TI SLAS865F).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / NMI input / SBW data I/O | Single-pin multifunction interface for device reset, nonmaskable interrupt, and Spy-Bi-Wire debug communication - eliminates need for dedicated JTAG pins |
| TEST/SBWTCK | SBW test clock input | Enables in-system programming and debugging using two-wire SBW protocol - reduces PCB routing complexity vs. full JTAG |
| P1.0–P1.7, P2.0–P2.7 | Capacitive touch I/O ports | All 16 pins support capacitive touch sensing with integrated signal conditioning - enables direct button/slider implementation without external ICs |
| P4.3/LCDCAP0 & P4.4/LCDCAP1 | LCD charge pump external terminals | Connect to 0.1-µF capacitor to generate boosted voltage for LCD bias - sustains LCD operation during LPM3.5 with no external power supply |
| XIN / XOUT | External 32-kHz crystal oscillator terminals | Supports high-accuracy RTC timing via external crystal - required for time-critical metering and timestamping applications |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 4KB program + 512B info FRAM with ECC, configurable write protection, and 10¹⁵ write endurance - enables logging, firmware updates, and parameter storage without wear leveling |
| Ultra-Low-Power LCD Support | Integrated charge pump and software-configurable SEG/COM pins allow full LCD operation in LPM3.5 (<1 µA) - extends battery life in display-equipped meters and medical devices |
| Capacitive Touch I/O | All 60 GPIOs support capacitive sensing with built-in signal processing - reduces BOM cost and simplifies UI design for thermostats and remote controls |
| Dual Enhanced USCI Peripherals | eUSCI_A0 (UART/IrDA/SPI) and eUSCI_B0 (SPI/I²C) enable simultaneous wired and wireless communication - supports dual-interface sensor hubs and smart meter backhaul |
| Fast Wake-Up Capability | DCO-based clock system achieves sub-10 µs wake-up from LPM3.5 to active mode - critical for responsive user interfaces and event-triggered measurements |
Applications
| Remote Controls | Thermostats |
|---|---|
Use Scenario: IR-based consumer electronics remote with button matrix and LCD status display. IC Role / Device Role / Timing Role: Main MCU handling IR modulation, capacitive touch decoding, LCD refresh, and low-power sleep management. Use Value: Integrated IR logic and LCD charge pump eliminate discrete drivers; 15 nA LPM4.5 enables >5-year coin-cell operation. | Use Scenario: Battery-powered HVAC controller with ambient temperature sensing, display, and relay control. IC Role / Device Role / Timing Role: System controller managing ADC sampling, PID computation, LCD update, and real-time scheduling via RTC. Use Value: 10-bit ADC with internal reference ensures accurate temperature readings; FRAM stores calibration data across power cycles without backup battery. |
| Water Meters | Blood Glucose Monitors |
Use Scenario: Ultrasonic or magnetic flow meter with pulse output, LCD, and tamper detection. IC Role / Device Role / Timing Role: Data acquisition MCU capturing flow pulses, computing volume, updating LCD, and storing usage logs. Use Value: 10¹⁵ FRAM write cycles support lifetime logging of hourly consumption; LPM3.5 with RTC enables accurate time-stamped billing data. | Use Scenario: Portable diagnostic device measuring glucose concentration from test strip electrochemical signal. IC Role / Device Role / Timing Role: Analog front-end controller performing precision ADC conversion, strip detection, and result display. Use Value: 200 ksps ADC captures fast transient signals; internal 1.5-V reference ensures stable measurement accuracy across battery voltage drop. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR4132IPMR | 8KB program FRAM + 1KB RAM vs. 4KB + 512B - doubles code space and buffer capacity | Better suited for applications requiring larger firmware (e.g., BLE stack integration, advanced UI rendering) | Select when additional FRAM and RAM are needed without changing package or peripheral set |
| MSP430FR2355IPM | ARM Cortex-M0+ core, 32KB FRAM, enhanced analog (12-bit ADC, op-amps), but no integrated LCD driver | Targeted at sensor fusion and higher-performance analog processing, not LCD-centric metering | Choose for increased computational throughput and analog flexibility where LCD is handled externally or omitted |
Compared with MSP430FR4132IPMR, the MSP430FR4131IPMR offers lower memory cost and smaller code footprint ideal for simple metering; versus MSP430FR2355IPM, it trades ARM performance and analog richness for proven LCD integration and ultra-low standby current - making it optimal for cost-sensitive, display-driven, long-life battery applications.
Availability
MSP430FR4131IPMR is available at Aetrix Electronics and suitable for water meters, thermostats, and blood glucose monitors requiring stable component supply, long-term lifecycle support, and consistent FRAM-based firmware update capability.
Supply support for MSP430FR4131IPMR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and personal electronics markets.
The MSP430FR41xx product line is designed specifically for ultra-low-power LCD-based metering and portable health applications, emphasizing FRAM reliability, sub-µA standby operation, and integrated analog peripherals to minimize external components.
FAQ
What is the maximum operating frequency of the MSP430FR4131IPMR?
The MSP430FR4131IPMR features a digitally controlled oscillator (DCO) with frequency-locked loop (FLL) that supports up to 16 MHz operation. This maximum frequency is achievable under recommended operating conditions (DVCC ≥ 2.2 V), and the DCO maintains ±1% accuracy at room temperature using the on-chip reference - enabling deterministic real-time response for time-critical tasks in the MSP430FR4131IPMR.
Does the MSP430FR4131IPMR support external crystal oscillators?
Yes, the MSP430FR4131IPMR supports an external 32-kHz crystal oscillator via the XIN and XOUT pins (pins 7 and 6 on the 64-pin LQFP package). This configuration enables high-accuracy real-time clock (RTC) functionality essential for time-stamped metering and scheduling in the MSP430FR4131IPMR - complementing its internal REFO and VLO oscillators.
How many I/O pins on the MSP430FR4131IPMR support capacitive touch sensing?
All 60 general-purpose I/O pins on the MSP430FR4131IPMR support capacitive touch sensing. This includes P1.x through P8.x ports, with P1 and P2 providing dedicated interrupt capability to wake the device from any low-power mode - enabling robust, low-cost touch interfaces in remote controls and thermostats using the MSP430FR4131IPMR.
What LCD configurations does the MSP430FR4131IPMR support?
The MSP430FR4131IPMR supports up to 4×36-segment or 8×32-segment LCD configurations. Each LCD pin is software-configurable as either SEG or COM, and contrast is adjustable from 2.6 V to 3.5 V in 0.06-V steps - allowing flexible display design and optimal visibility across battery voltage ranges in the MSP430FR4131IPMR.
Is the MSP430FR4131IPMR pin-compatible with other devices in the MSP430FR41xx family?
Yes, the MSP430FR4131IPMR is pin-compatible with the MSP430FR4132IPMR and MSP430FR4133IPMR in the same 64-pin LQFP (PM) package. All share identical pinouts, peripheral mappings, and electrical characteristics - enabling hardware reuse and firmware scalability across memory variants within the MSP430FR4131IPMR family.
MSP430FR4131IPMR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-LQFP
- Series:
- MSP430™ FRAM
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, IrDA, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, LCD, POR, PWM, WDT
- Number of I/O:
- 60
- Program Memory Size:
- 4.5KB (4.5K x 8)
- Program Memory Type:
- FRAM
- EEPROM Size:
- -
- RAM Size:
- 512 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 10x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR4131IPMR FAQ
1.How can I place an order for MSP430FR4131IPMR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR4131IPMR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MSP430FR4131IPMR reliable?
The price and inventory of MSP430FR4131IPMR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR4131IPMR is usually 5 days.
3.What payment methods are accepted for MSP430FR4131IPMR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR4131IPMR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR4131IPMR?
MSP430FR4131IPMR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR4131IPMR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MSP430FR4131IPMR?
For technical support, including MSP430FR4131IPMR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR4131IPMR requirements.
6.How does Aetrix verify that MSP430FR4131IPMR is sourced from the original manufacturer or authorized distributors?
All MSP430FR4131IPMR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MSP430FR4131IPMR meets industry standards.
7.What is the process for return or replacement of MSP430FR4131IPMR?
All MSP430FR4131IPMR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR4131IPMR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MSP430FR4131IPMR part is unused and in its original packaging.
Return procedure for MSP430FR4131IPMR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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