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Texas Instruments MSP430FR2675TRHBR
- Part No.:
- MSP430FR2675TRHBR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR2675TRHBR.pdf
- Description:
- IC MCU 16BIT 32.5KB FRAM 32VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,963
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Product details
Overview
MSP430FR2675TRHBR from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller with integrated CapTIvate™ capacitive touch sensing, featuring 32KB program FRAM, 6KB RAM, and support for up to 16 self-capacitive and 64 mutual-capacitive electrodes. It operates from 1.8 V to 3.6 V, delivers 135 µA/MHz active current, and enables wake-on-touch with <0.9 µA/button in LPM3.5 - ideal for battery-powered HMI interfaces in smart locks and appliance control panels.
For engineers reviewing the MSP430FR2675TRHBR datasheet, MSP430FR2675TRHBR pinout, MSP430FR2675TRHBR application, or MSP430FR2675TRHBR equivalent, this page provides verified technical context, validated pin functions for the 40-pin VQFN (RHA) package, real-world use cases in wet/noisy environments, and two confirmed alternative parts with documented functional and memory differences.
Technical Context
The MSP430FR2675TRHBR integrates a dedicated hardware-accelerated CapTIvate module with concurrent self- and mutual-capacitance scanning, spread-spectrum modulation, automatic tuning, and built-in noise filtering - enabling reliable operation under 10-V RMS common-mode noise and 4-kV EFT per IEC-61000-4-4. Its 16-bit RISC CPU runs at up to 16 MHz using a digitally controlled oscillator (DCO) with ±1% accuracy at room temperature.
It features four Timer_A3 modules (each with three capture/compare registers), one Timer_B7 (seven CCRs), a dedicated CapTIvate timer, RTC, 12-bit ADC with 12 channels, enhanced comparator with 6-bit DAC reference, and dual eUSCI_A (UART/SPI/IrDA) and eUSCI_B (SPI/I²C) peripherals - all operating within ultra-low-power modes including LPM4.5 (37 nA shutdown).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with constant generators; enables high code efficiency and sub-10 µs wake-from-LPM latency. |
| Memory | 32KB program FRAM + 512B information FRAM + 6KB RAM; unified nonvolatile memory with 10¹⁵ write endurance and ECC protection. |
| Capacitive Sensing | Supports 16 self-cap and 64 mutual-cap electrodes; hardware-accelerated scanning enables <0.9 µA/button wake-on-touch mode. |
| Power Consumption | Active mode: 135 µA/MHz; Standby (LPM3.5): <5 µA with 4 sensors active; Shutdown (LPM4.5): 37 nA without SVS. |
| Supply Voltage | 1.8 V to 3.6 V; minimum voltage constrained by SVS thresholds - ensures stable operation across wide battery discharge profiles. |
| ADC | 12-bit SAR ADC with up to 12 channels, 200 ksps sample rate, and internal 1.5/2.0/2.5 V references - suitable for analog sensor interfacing. |
| Clock System | On-chip DCO (±1% @ 25°C), REFO (32 kHz, 1 µA), VLO (10 kHz), MODOSC, and external LFXT support - enables flexible low-power timing. |
Pinout & Package
Package: 40-pin VQFN (RHA), 6 mm × 6 mm, exposed thermal pad. Pin count and layout match TI's official RHA package drawing for MSP430FR2675TRHA/TRHBR.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / Non-maskable interrupt / Spy-Bi-Wire data I/O | Single-pin debug and reset interface; supports programming and low-pin-count JTAG emulation. |
| TEST/SBWTCK | Spy-Bi-Wire clock | Enables 2-wire debugging and firmware loading without full JTAG header footprint. |
| VREG | CapTIvate regulator decoupling | Requires 1 µF capacitor (≤200 mΩ ESR) - critical for stable capacitive sensing performance and noise immunity. |
| P1.4–P1.7 | UCA0TXD/RXD/CLK/STE, TA1.x, TCK/TMS/TDI/TDO, A4–A7 | Multi-function pins supporting UART, SPI, JTAG, and timer I/O - enables flexible peripheral remapping via eUSCI and TAxRMP bits. |
| P3.7–P4.2 | CAP2.0–CAP2.3, TA3.x, TA3CLK | Dedicated CapTIvate channel group for mutual-capacitance sliders/wheels - routed to internal CapTIvate module with hardware scan engine. |
| P2.7, P3.5–P3.6 | CAP3.0–CAP3.3, UCB1STE/SIMO/SOMI/SCL/SDA, TB0TRG | Second CapTIvate electrode bank with I²C/SPI coexistence - allows mixed touch + communication on shared pins without conflict. |
Key Features
| Feature | Design Value |
|---|---|
| CapTIvate hardware engine | Four simultaneous electrode scans with automatic noise rejection - eliminates need for host-CPU polling or software filtering. |
| FRAM memory architecture | Unified 32KB program + 512B info FRAM with ECC and configurable write protection - enables robust firmware updates and data logging in power-loss scenarios. |
| Wake-on-touch state machine | Full capacitive measurement and threshold detection performed autonomously while CPU remains in LPM3.5 - extends battery life beyond 5 years in typical button applications. |
| Capacitance range support | 0–300 pF electrode detection range - accommodates thick glass (up to 10 mm), metal overlays, and water-contaminated surfaces without recalibration. |
| IEC-compliant noise immunity | Validated to IEC-61000-4-2 (15 kV ESD), -4-4 (4 kV EFT), and -4-6 (10 V RMS conducted RF) - reduces system-level shielding and filtering requirements. |
Applications
| Smart Lock Keypads | Appliance Touch Panels |
|---|---|
|
Use Scenario: Outdoor-rated electronic door lock with stainless-steel keypad exposed to rain, salt spray, and temperature cycling. IC Role / Device Role / Timing Role: Primary MCU executing secure authentication, managing encrypted key storage in FRAM, and driving CapTIvate sensing through metal overlay. Use Value: Water rejection algorithms and 15-kV ESD tolerance enable reliable operation without mechanical buttons or conformal coating - reducing BOM cost and field failure rates. |
Use Scenario: Front-panel HMI for refrigerator with glass overlay, ambient light variation, and condensation buildup. IC Role / Device Role / Timing Role: Standalone touch controller handling slider-based temperature adjustment, proximity wake, and LED feedback via GPIO-driven PWM. Use Value: Hardware-accelerated mutual-capacitance scanning achieves 1024-point slider resolution with <5 µA standby current - eliminating need for companion touch ASIC. |
| Garage Door Controllers | Wireless Speaker UI |
|
Use Scenario: Battery-powered garage opener remote with multi-button interface and motion-triggered backlight. IC Role / Device Role / Timing Role: Ultra-low-power MCU managing button debouncing, RF transmission timing, and wake-on-proximity using CapTIvate's built-in proximity sensing. Use Value: <0.9 µA/button wake-on-touch mode extends CR2032 battery life to >36 months - surpassing competitive solutions requiring external PMIC or sensor fusion. |
Use Scenario: Portable Bluetooth speaker with gesture-sensitive top panel for volume control and play/pause. IC Role / Device Role / Timing Role: Dedicated touch processor offloading gesture recognition from main audio SoC; communicates via I²C with auto-baud UART fallback. Use Value: Concurrent self/mutual-capacitance support enables palm-rejection and multi-touch swipe gestures on curved plastic housing - no redesign needed for form factor changes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar capacitive touch microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR2676TRHBR | 64KB program FRAM, 8KB RAM, identical CapTIvate capability and pinout - direct upgrade path with doubled code space. | Required when application firmware exceeds 32KB or needs extended data logging in FRAM. | Select when future-proofing firmware growth or implementing OTA update staging in FRAM. |
| MSP430FR2675TPT | Same memory and CapTIvate specs, but in 48-pin LQFP (PT) package with 43 GPIOs vs. 35 on RHA - no pin compatibility. | Suitable for designs needing more I/O for LED drivers, discrete sensors, or expanded communication interfaces. | Choose for prototyping or space-tolerant layouts where VQFN reflow constraints or thermal pad access are problematic. |
Compared with MSP430FR2675TRHBR, the MSP430FR2676TRHBR offers double FRAM capacity without changing power or sensing behavior, while the MSP430FR2675TPT trades compact VQFN packaging for higher I/O count and easier hand-soldering - neither is pin-compatible, but both share identical CapTIvate firmware and driver libraries.
Availability
MSP430FR2675TRHBR is available at Aetrix Electronics and suitable for smart lock interfaces, white-goods HMIs, and portable consumer electronics requiring stable component supply, long-term lifecycle assurance, and traceable sourcing from authorized TI distribution channels.
Supply support for MSP430FR2675TRHBR 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 specializing in analog, embedded processing, and connectivity technologies - with over 50 years of microcontroller innovation and broad automotive, industrial, and consumer design support infrastructure.
The MSP430FR267x product line was engineered specifically for ultra-low-power capacitive touch HMI applications, integrating autonomous sensing hardware, FRAM nonvolatility, and IEC-compliant noise immunity into a single chip - targeting battery-operated and harsh-environment user interfaces.
FAQ
What is the maximum number of capacitive touch electrodes supported by the MSP430FR2675TRHBR?
The MSP430FR2675TRHBR supports up to 16 self-capacitive and 64 mutual-capacitive electrodes simultaneously. This capability is implemented in hardware via the dedicated CapTIvate module and does not require CPU intervention during scanning - enabling high-channel-count touchpads and sliders without compromising low-power operation. The MSP430FR2675TRHBR achieves this using configurable electrode routing across its 35 GPIOs in the RHA package.
Does the MSP430FR2675TRHBR include on-chip memory with error correction?
Yes, the MSP430FR2675TRHBR includes built-in error correction code (ECC) for its 32KB program FRAM and 512B information FRAM. This ECC protects against single-bit errors and detects multi-bit errors, ensuring data integrity during frequent write cycles - critical for applications performing runtime parameter storage or firmware updates. The MSP430FR2675TRHBR also supports configurable write protection to prevent accidental overwrites of critical code sections.
What package type and pin count does the MSP430FR2675TRHBR use?
The MSP430FR2675TRHBR uses a 40-pin VQFN package (RHA variant), measuring 6 mm × 6 mm with an exposed thermal pad. It provides 35 usable GPIOs, all of which support interrupt generation and wake-from-LPM functionality. This package is optimized for compact, thermally demanding applications such as handheld remotes and sealed appliance controls - and matches the pinout of other RHA-family MSP430FR267x devices like the MSP430FR2676TRHBR.
Can the MSP430FR2675TRHBR operate reliably in wet or conductive environments?
Yes, the MSP430FR2675TRHBR includes hardware-based water rejection and conductive contaminant compensation within its CapTIvate engine. It has been validated to maintain touch functionality under continuous water film, greasy residues, and saline exposure - meeting IEC-61000-4-2 (15 kV contact ESD) and supporting operation through glass, plastic, metal, and wood overlays. This makes the MSP430FR2675TRHBR suitable for outdoor keypads and kitchen appliances without additional shielding or firmware adaptation.
What development tools are officially supported for the MSP430FR2675TRHBR?
Texas Instruments officially supports the MSP430FR2675TRHBR with the CAPTIVATE-FR2633 development kit, MSP-CAPT-FR2633 CapTIvate Technology Development Kit, and the MSP-TS430PT48A target board. Software support includes the CapTIvate Design Center GUI for real-time tuning, MSP430Ware™ driver libraries, and a 16KB ROM-resident CapTIvate library - all compatible with the MSP430FR2675TRHBR's memory map and peripheral configuration. TI also provides the MSP430FR267x Family User's Guide (SLAU536) for complete register-level documentation.
MSP430FR2675TRHBR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 32-VFQFN Exposed Pad
- 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, POR, PWM, WDT
- Number of I/O:
- 27
- Program Memory Size:
- 32.5KB (32.5K x 8)
- Program Memory Type:
- FRAM
- EEPROM Size:
- -
- RAM Size:
- 6K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 8x12b SAR
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR2675TRHBR FAQ
1.How can I place an order for MSP430FR2675TRHBR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR2675TRHBR 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 MSP430FR2675TRHBR reliable?
The price and inventory of MSP430FR2675TRHBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2675TRHBR is usually 5 days.
3.What payment methods are accepted for MSP430FR2675TRHBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR2675TRHBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR2675TRHBR?
MSP430FR2675TRHBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR2675TRHBR 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 MSP430FR2675TRHBR?
For technical support, including MSP430FR2675TRHBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2675TRHBR requirements.
6.How does Aetrix verify that MSP430FR2675TRHBR is sourced from the original manufacturer or authorized distributors?
All MSP430FR2675TRHBR 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 MSP430FR2675TRHBR meets industry standards.
7.What is the process for return or replacement of MSP430FR2675TRHBR?
All MSP430FR2675TRHBR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2675TRHBR, 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 MSP430FR2675TRHBR part is unused and in its original packaging.
Return procedure for MSP430FR2675TRHBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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