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Texas Instruments MSP430FR4131IG48R
- Part No.:
- MSP430FR4131IG48R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
MSP430FR4131IG48R.pdf
- Description:
- IC MCU 16BIT 4.5KB FRAM 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,363
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Product details
Overview
MSP430FR4131IG48R from Texas Instruments is a 16-bit ultra-low-power ferroelectric RAM (FRAM) microcontroller in 48-pin TSSOP package, featuring 4KB program FRAM + 512B information FRAM + 512B RAM, 10-bit ADC with 8 input channels, and integrated LCD driver supporting up to 4×24 or 8×20 segments for battery-powered metering and portable health devices.
For engineers reviewing the MSP430FR4131IG48R datasheet, MSP430FR4131IG48R pinout, MSP430FR4131IG48R application, or MSP430FR4131IG48R equivalent, key selection criteria include its 15 nA shutdown current (LPM4.5), capacitive touch I/O capability on all pins, 126 µA/MHz active-mode efficiency, and on-chip charge pump enabling LCD operation in standby mode (LPM3.5).
Technical Context
The MSP430FR4131IG48R 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 supports multiple sources: internal 32-kHz REFO, 10-kHz VLO, 16-MHz DCO, and external 32-kHz XT1 crystal.
It features two Timer_A3 modules (TA0 and TA1), each with three capture/compare registers-though only CCR1 and CCR2 are externally accessible-and includes dedicated eUSCI_A0 (UART/IrDA/SPI) and eUSCI_B0 (SPI/I²C) peripherals. The device operates across 1.8–3.6 V and supports wake-up from LPM3.5 in under 10 µs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with constant generators; enables compact, efficient firmware for resource-constrained embedded applications. |
| FRAM Memory | 4KB program + 512B info FRAM + 512B RAM; provides nonvolatile storage with 10¹⁵ write endurance and no erase cycles required. |
| ADC Resolution & Speed | 10-bit SAR ADC with 200 ksps sampling rate and internal 1.5-V reference; supports precise analog sensing without external reference components. |
| Low-Power Modes | LPM4.5 draws 15 nA; LPM3.5 maintains RTC and LCD functionality while disabling CPU/peripherals-ideal for long-life battery operation. |
| LCD Driver | Supports 4×24 or 8×20 segment configurations with on-chip charge pump; eliminates need for external bias circuitry in LPM3.5. |
| I/O Count & Capability | 44 general-purpose I/O pins, all configurable as capacitive touch inputs; enables direct integration of touch interfaces without external controllers. |
| Supply Voltage Range | 1.8 V to 3.6 V; accommodates single-cell Li-ion, alkaline, or coin-cell power sources with built-in SVS monitoring. |
Pinout & Package
Package: 48-pin TSSOP (DGG), body size 12.5 mm × 6.1 mm, lead pitch 0.5 mm, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / NMI input / SBW data I/O | Single pin serves as hardware reset trigger, nonmaskable interrupt source, and bidirectional debug data line for Spy-Bi-Wire programming. |
| TEST/SBWTCK | Test mode select / SBW clock input | Enables JTAG-compatible debugging via 2-wire interface; must be pulled high during normal operation. |
| P1.0–P1.7 | General-purpose I/O / ADC inputs A0–A7 | Eight pins support simultaneous analog input acquisition and digital I/O; P1.0–P1.3 also serve UART TX/RX and SPI functions. |
| P4.1/XIN & P4.2/XOUT | XT1 crystal oscillator terminals | Support external 32-kHz watch crystal for precision RTC timing; requires external load capacitors per layout guidelines. |
| P4.3/LCDCAP0 & P4.4/LCDCAP1 | LCD charge pump external capacitor nodes | Connect to 0.1-µF ceramic capacitor to enable internal charge pump for LCD bias generation in low-power modes. |
| DVCC / DVSS | Main power supply pair | Single 1.8–3.6 V supply powers both digital and analog domains; requires 4.7–10 µF bulk + 0.1 µF decoupling per datasheet recommendations. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | Unified nonvolatile memory architecture with 10¹⁵ write endurance, zero write latency, and radiation resistance-eliminates flash wear-out concerns in logging or frequent parameter update applications. |
| Capacitive Touch I/O | All 44 GPIOs support capacitive sensing without external components; enables robust touch buttons or sliders in space-constrained designs like remote controls or medical handhelds. |
| Integrated LCD Driver | Configurable 4×24 or 8×20 segment drive with internal charge pump; sustains display visibility during LPM3.5 with <1 µA total current draw including RTC. |
| Ultra-Low-Power Operation | 126 µA/MHz active mode, <1 µA LPM3.5 (RTC+LCD), and 15 nA LPM4.5 shutdown-extends battery life to years in intermittent-sensing applications such as water meters. |
| Dual Enhanced USCI Peripherals | eUSCI_A0 (UART/IrDA/SPI) and eUSCI_B0 (SPI/I²C) provide flexible communication options for sensor interfacing, wireless module control, or host MCU coordination. |
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 controller executing IR modulation logic, scanning capacitive touch keys, driving segmented LCD, and managing low-power sleep/wake cycles. Use Value: Integrated IR modulation hardware and LCD charge pump reduce BOM count; 15 nA shutdown current enables multi-year battery life on CR2032. | Use Scenario: Battery-powered HVAC thermostat with ambient temperature sensing, user interface, and wireless reporting. IC Role / Device Role / Timing Role: System-on-chip handling ADC-based thermistor readings, capacitive touch UI, real-time clock for scheduling, and UART/I²C for sensor or radio communication. Use Value: Unified FRAM simplifies firmware updates and data logging; LPM3.5 mode maintains RTC and LCD while consuming <1 µA-critical for seasonal deployment. |
| Water Meters | Blood Glucose Monitors |
Use Scenario: Ultrasonic or magnetic flow meter with pulse output, tamper detection, and LCD display for consumption readout. IC Role / Device Role / Timing Role: Data acquisition unit capturing flow pulses via timer capture, performing calibration math in FRAM, updating LCD, and storing usage history. Use Value: 10-bit ADC with internal reference ensures consistent pulse counting accuracy; FRAM's 10¹⁵ endurance supports >10 years of daily logging without degradation. | Use Scenario: Portable diagnostic device measuring glucose concentration from test strip electrochemical signal. IC Role / Device Role / Timing Role: Precision analog front-end controller acquiring low-level current signals via ADC, managing strip insertion detection, and displaying results on segmented LCD. Use Value: 200 ksps ADC sampling captures fast transient responses; on-chip 1.5-V reference improves measurement repeatability across voltage and temperature ranges. |
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 |
|---|---|---|---|
| MSP430FR4132IG48R | 8KB program FRAM + 1KB RAM vs. 4KB + 512B; identical peripheral set and package. | Supports larger firmware images and more complex algorithms; suitable when application code exceeds 4KB or requires additional RAM buffers. | Select when firmware size or runtime data requirements exceed MSP430FR4131IG48R capacity-no PCB changes needed. |
| MSP430FR2355TRHBR | 32-pin VQFN, 16KB FRAM, no integrated LCD driver, but adds analog comparator and enhanced op-amps. | Targeted at sensor signal conditioning rather than display-centric applications; lacks LCD support but offers superior analog front-end flexibility. | Choose for analog-intensive designs without display needs; requires different layout and firmware adaptation due to pinout and peripheral differences. |
Compared with MSP430FR4132IG48R, the MSP430FR4131IG48R trades memory headroom for cost optimization in simpler metering or control functions; versus MSP430FR2355TRHBR, it prioritizes integrated LCD and capacitive touch over analog signal chain expansion-making it ideal for display-driven, battery-limited endpoints.
Availability
MSP430FR4131IG48R is available at Aetrix Electronics and suitable for remote controls, thermostats, and water meters requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for MSP430FR4131IG48R 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 leader delivering analog, embedded processing, and connectivity solutions with emphasis on energy efficiency and system integration.
The MSP430FR41xx product line targets ultra-low-power LCD-based applications-including smart meters, portable medical devices, and remote controls-by combining FRAM nonvolatility, integrated peripherals, and sub-µA low-power modes.
FAQ
What is the maximum operating frequency of the MSP430FR4131IG48R?
The MSP430FR4131IG48R supports a maximum CPU clock frequency of 16 MHz using its on-chip digitally controlled oscillator (DCO) with frequency-locked loop (FLL). This speed is achievable across the full 1.8–3.6 V supply range and enables responsive real-time control in applications such as IR remote encoding or sensor data processing. The MSP430FR4131IG48R maintains timing accuracy within ±1% at room temperature when calibrated against the internal reference.
Does the MSP430FR4131IG48R support external crystal oscillators?
Yes, the MSP430FR4131IG48R supports an external 32-kHz crystal oscillator via the XIN (P4.1) and XOUT (P4.2) pins for precise real-time clock (RTC) operation. This configuration is essential for time-critical applications like utility metering or scheduled sensor wake-ups. The device also includes internal oscillators (REFO, VLO, DCO) to eliminate external crystals where timing tolerance permits.
How many I/O pins does the MSP430FR4131IG48R have, and what special functions do they support?
The MSP430FR4131IG48R provides 44 general-purpose I/O pins in its 48-pin TSSOP package. All pins support capacitive touch sensing, and multiple pins are multiplexed with peripheral functions including UART (UCA0TXD/UCA0RXD), I²C (UCB0SDA/UCB0SCL), SPI (UCA0CLK/UCB0CLK), ADC inputs (A0–A7), timer capture/compare (TA0.1/TA1.1), and LCD segment/com drivers (L0–L35). Pin mapping is documented in Section 7.3 of the datasheet.
What LCD configurations are supported by the MSP430FR4131IG48R?
The MSP430FR4131IG48R supports LCD configurations up to 4×24 segments or 8×20 segments, enabled by its integrated LCD controller and on-chip charge pump. This capability allows direct drive of alphanumeric or custom segment displays without external bias circuitry-even in low-power standby mode (LPM3.5). Contrast is software-adjustable in 0.06-V steps from 2.6 V to 3.5 V.
Is the MSP430FR4131IG48R pin-compatible with other members of the MSP430FR41xx family?
Yes, the MSP430FR4131IG48R shares identical pinout and package dimensions with MSP430FR4132IG48R and MSP430FR4133IG48R-enabling drop-in replacement within the same 48-pin TSSOP footprint. Firmware and hardware design can be reused across these variants; differentiation lies solely in FRAM/RAM sizing and ADC channel count (8 vs. 10), which are software-configurable and do not affect pin behavior.
MSP430FR4131IG48R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- 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:
- 44
- 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 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR4131IG48R FAQ
1.How can I place an order for MSP430FR4131IG48R through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR4131IG48R 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 MSP430FR4131IG48R reliable?
The price and inventory of MSP430FR4131IG48R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR4131IG48R is usually 5 days.
3.What payment methods are accepted for MSP430FR4131IG48R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR4131IG48R transactions.
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4.How is shipping managed for MSP430FR4131IG48R?
MSP430FR4131IG48R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR4131IG48R 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 MSP430FR4131IG48R?
For technical support, including MSP430FR4131IG48R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR4131IG48R requirements.
6.How does Aetrix verify that MSP430FR4131IG48R is sourced from the original manufacturer or authorized distributors?
All MSP430FR4131IG48R 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 MSP430FR4131IG48R meets industry standards.
7.What is the process for return or replacement of MSP430FR4131IG48R?
All MSP430FR4131IG48R units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR4131IG48R, 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 MSP430FR4131IG48R part is unused and in its original packaging.
Return procedure for MSP430FR4131IG48R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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