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Texas Instruments MSP430FR2672TRHBR
- Part No.:
- MSP430FR2672TRHBR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR2672TRHBR.pdf
- Description:
- IC MCU 16BIT 8.5KB FRAM 32VQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MSP430FR2672TRHBR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with integrated CapTIvate™ capacitive touch sensing, supporting up to 16 self-capacitive and 24 mutual-capacitive electrodes. It features 8KB program FRAM, 2KB RAM, and operates from 1.8 V to 3.6 V with active current of 135 µA/MHz. Designed for battery-powered HMI applications including smart locks and appliance control panels, it delivers hardware-accelerated wake-on-touch at <0.9 µA/button.
For engineers reviewing the MSP430FR2672TRHBR datasheet, MSP430FR2672TRHBR pinout, MSP430FR2672TRHBR application, or MSP430FR2672TRHBR equivalent, key selection criteria include its 32-pin VQFN (RHB) package, CapTIvate-specific timer, FRAM endurance (10¹⁵ cycles), IEC-61000-4-2/4-4/4-6 compliance, and support for metal/water-rejecting touch designs.
Technical Context
The MSP430FR2672TRHBR implements a dedicated CapTIvate timing module synchronized with its 16-MHz DCO+FLL clock system, enabling concurrent self- and mutual-capacitance scanning without CPU intervention. Its hardware state machine handles electrode scanning, spread-spectrum modulation, automatic tuning, and noise filtering in LPM3/LPM4 modes.
Capacitive sensing is performed using configurable CIO pins mapped to CAP0–CAP3 channels, with integrated reference voltage generation (1.5/2.0/2.5 V), 6-bit DAC-based hysteresis control, and programmable electrode drive strength. The device supports up to 300 pF electrode capacitance range and maintains reliable operation under 10-V RMS common-mode noise.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with constant generators; enables high code efficiency for real-time touch processing |
| Memory | 8KB program FRAM + 512B information FRAM + 2KB RAM; unified nonvolatile memory with ECC and 10¹⁵ write endurance |
| Capacitive Sensing | Up to 16 self-cap and 24 mutual-cap electrodes; supports proximity, sliders (1024-point), and metal/water rejection |
| Power Consumption | Active mode: 135 µA/MHz; standby wake-on-touch: <5 µA with four sensors; shutdown (LPM4.5): 37 nA |
| Supply Voltage | 1.8 V to 3.6 V; minimum limited by SVS thresholds; supports single-supply operation for simplified power design |
| Compliance | IEC-61000-4-2 (15-kV ESD), IEC-61000-4-4 (4-kV EFT), IEC-61000-4-6 (10-V RMS noise immunity) |
| Clock System | On-chip 16-MHz DCO+FLL (±1% at room temp), 32-kHz REFO, 10-kHz VLO, and external LFXT support |
Pinout & Package
Package: 32-pin VQFN (RHB), 5 mm × 5 mm body size, 0.5-mm pitch, thermally enhanced exposed pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / Non-maskable interrupt / Spy-Bi-Wire data I/O | Primary debug and programming interface; dual-function pin enabling low-pin-count in-system programming |
| TEST/SBWTCK | Spy-Bi-Wire clock | Enables JTAG-like debugging with only two wires; critical for field firmware updates |
| P1.0–P1.7, P2.0–P2.7, P3.0–P3.7, P4.0–P4.2, P4.7, P5.0–P5.7, P6.0–P6.1 | Configurable GPIO with CapTIvate, timer, UART, I²C, SPI, ADC functions | 27 total I/Os; all support interrupt wake-up; CapTIvate-capable pins (e.g., CAP0.0–CAP3.3) are hardware-mapped for electrode drive/sense |
| VREG | CapTIvate regulator decoupling node | Requires 1-µF capacitor (≤200 mΩ ESR); stabilizes internal analog supply for consistent touch performance |
| DVCC / DVSS | Main digital/analog power pair | Single 1.8–3.6 V supply powers entire chip; bypassing requires 4.7–10 µF + 0.1 µF per supply rail |
Key Features
| Feature | Design Value |
|---|---|
| Hardware-accelerated CapTIvate engine | Performs electrode scanning, spread-spectrum modulation, auto-tuning, and debouncing autonomously-no CPU overhead in LPM3/LPM4 |
| FRAM memory architecture | Enables instant nonvolatile writes, eliminates erase cycles, supports 10¹⁵ endurance, and provides radiation resistance for industrial environments |
| Integrated analog peripherals | 12-bit ADC (8 channels), enhanced comparator with 6-bit DAC reference, and programmable hysteresis for robust signal conditioning |
| Ultra-low-power operation | 37 nA shutdown (LPM4.5), <0.9 µA/button wake-on-touch, and sub-10 µs wake-from-LPM to active mode enable multi-year battery life |
| Capacitive sensing flexibility | Simultaneous self/mutual-capacitance mixing, 0–300 pF detection range, and support for thick overlays (glass, plastic, metal, wood) |
Applications
| Smart Lock Keypads | Appliance Control Panels |
|---|---|
Use Scenario: Touch-enabled door lock keypad operating on coin-cell batteries with IP65-rated enclosure exposed to moisture and temperature extremes. IC Role / Device Role / Timing Role: MSP430FR2672TRHBR serves as the sole HMI controller, executing CapTIvate sensing, secure key validation, and low-power BLE interface management. Use Value: Hardware wake-on-touch and 37 nA shutdown extend battery life beyond 5 years; metal-touch capability allows stainless-steel front panel integration. | Use Scenario: Wash-cycle selector and function buttons on a front-loading washing machine with splash-resistant overlay and detergent residue exposure. IC Role / Device Role / Timing Role: MSP430FR2672TRHBR performs real-time water-rejection touch detection, status LED control, and serial communication with main MCU. Use Value: IEC-61000-4-2/4-4/4-6 compliance ensures reliability in electrically noisy motor environments; FRAM enables instant parameter save during power loss. |
| Garage Door Keypads | Wireless Speaker Controls |
Use Scenario: Outdoor wall-mounted keypad subjected to UV, rain, freeze-thaw cycles, and EMI from garage motor and RF remotes. IC Role / Device Role / Timing Role: MSP430FR2672TRHBR manages proximity wake, button press validation, encrypted RF transmission, and anti-tamper monitoring. Use Value: 10-V RMS noise immunity prevents false triggers near AC motors; wide 1.8–3.6 V supply accommodates aging alkaline batteries. | Use Scenario: Compact Bluetooth speaker with gesture-sensitive top panel for volume, play/pause, and power control powered by Li-ion battery. IC Role / Device Role / Timing Role: MSP430FR2672TRHBR executes slider-based volume control, proximity wake, and I²C communication with audio SoC. Use Value: High-resolution 1024-point slider support enables precise volume adjustment; <5 µA standby current preserves battery charge between user interactions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar capacitive touch microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR2673TRHB | 16KB program FRAM, 4KB RAM, same 32-pin VQFN package and CapTIvate peripheral set | Supports full 64 mutual-capacitance electrodes vs. 24 on MSP430FR2672TRHBR; suitable for complex sliders or multi-zone panels | Select when firmware growth or additional sensor count is anticipated; identical pinout and layout compatibility |
| MSP430FR2675TRHA | 32KB program FRAM, 6KB RAM, 40-pin VQFN (RHA) package, 10 ADC channels vs. 8 | Higher I/O count (35 GPIOs) and larger memory enable richer HMI features (e.g., OLED driver integration) | Choose for designs requiring more peripherals or future scalability; requires PCB redesign due to different package and pin count |
Compared with MSP430FR2673TRHB, MSP430FR2672TRHBR offers lower memory and sensor capacity but identical CapTIvate reliability and ultra-low-power operation-ideal for cost-optimized, compact touch interfaces. Against MSP430FR2675TRHA, it trades I/O and memory for smaller footprint and lower BOM cost in space-constrained applications.
Availability
MSP430FR2672TRHBR is available at Aetrix Electronics and suitable for smart lock keypads, appliance control panels, and garage door systems requiring stable component supply, long-term lifecycle support, and automotive-grade reliability metrics.
Supply support for MSP430FR2672TRHBR 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 over 50 years of innovation in low-power microcontrollers.
The MSP430FR267x product line was designed specifically for ultra-low-power capacitive touch HMI applications-integrating autonomous sensing, FRAM, and mixed-signal peripherals into a single chip for battery-operated consumer and industrial interfaces.
FAQ
What is the maximum number of capacitive touch electrodes supported by the MSP430FR2672TRHBR?
The MSP430FR2672TRHBR supports up to 16 self-capacitive and 24 mutual-capacitive electrodes. This configuration is fixed for this variant and differs from higher-memory family members like the MSP430FR2676 (64 mutual-cap) or MSP430FR2673 (64 mutual-cap). Electrode count is determined by internal CapTIvate channel routing and cannot be increased via firmware.
Does the MSP430FR2672TRHBR include hardware support for IEC-61000-4-2 ESD protection?
Yes, the MSP430FR2672TRHBR is specified to withstand 15-kV air-gap and 8-kV contact discharge per IEC-61000-4-2. This rating is achieved through on-die protection structures and validated CapTIvate algorithms-including spread spectrum, automatic tuning, and noise filtering-that maintain functionality during ESD events without system reset.
What package type and dimensions does the MSP430FR2672TRHBR use?
The MSP430FR2672TRHBR uses a 32-pin VQFN package (RHB variant), with a 5 mm × 5 mm body size and 0.5-mm lead pitch. It includes an exposed thermal pad for improved heat dissipation and mechanical stability. This package is shared across MSP430FR2672TRHB, MSP430FR2673TRHB, and MSP430FR2675TRHB variants.
Can the MSP430FR2672TRHBR operate with a 1.8-V supply voltage?
Yes, the MSP430FR2672TRHBR operates across 1.8 V to 3.6 V. At 1.8 V, it maintains full functionality including CapTIvate sensing, FRAM access, and peripheral operation-though maximum CPU frequency is reduced per SVS level constraints. The device's ultra-low-power design ensures stable operation down to the minimum rated voltage.
Is there a dedicated hardware timer for CapTIvate functions in the MSP430FR2672TRHBR?
Yes, the MSP430FR2672TRHBR includes one 16-bit timer explicitly associated with CapTIvate technology. This timer is hardware-synchronized with the CapTIvate measurement engine and handles electrode scanning timing, burst sequencing, and modulation waveform generation-freeing the main CPU for application tasks.
MSP430FR2672TRHBR 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:
- 8.5KB (8.5K x 8)
- Program Memory Type:
- FRAM
- EEPROM Size:
- -
- RAM Size:
- 2K 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:
MSP430FR2672TRHBR FAQ
1.How can I place an order for MSP430FR2672TRHBR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR2672TRHBR 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 MSP430FR2672TRHBR reliable?
The price and inventory of MSP430FR2672TRHBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2672TRHBR is usually 5 days.
3.What payment methods are accepted for MSP430FR2672TRHBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR2672TRHBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR2672TRHBR?
MSP430FR2672TRHBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR2672TRHBR 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 MSP430FR2672TRHBR?
For technical support, including MSP430FR2672TRHBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2672TRHBR requirements.
6.How does Aetrix verify that MSP430FR2672TRHBR is sourced from the original manufacturer or authorized distributors?
All MSP430FR2672TRHBR 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 MSP430FR2672TRHBR meets industry standards.
7.What is the process for return or replacement of MSP430FR2672TRHBR?
All MSP430FR2672TRHBR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2672TRHBR, 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 MSP430FR2672TRHBR part is unused and in its original packaging.
Return procedure for MSP430FR2672TRHBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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