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Texas Instruments MSP430FR2673TRHBT
- Part No.:
- MSP430FR2673TRHBT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR2673TRHBT.pdf
- Description:
- IC MCU 16BIT 16.5KB FRAM 32VQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MSP430FR2673TRHBT from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller with integrated CapTIvate™ capacitive touch sensing, 16KB FRAM + 512B information FRAM, 4KB RAM, and support for up to 16 self- and 64 mutual-capacitance electrodes. It operates from 1.8 V to 3.6 V, achieves <0.9 µA/button in wake-on-touch mode, and targets HMI applications requiring robust touch performance in wet or noisy environments.
For engineers reviewing the MSP430FR2673TRHBT datasheet, MSP430FR2673TRHBT pinout, MSP430FR2673TRHBT application, or MSP430FR2673TRHBT equivalent, this page delivers verified technical context, package-specific pin functions, real-world use cases, and validated alternative options - all grounded in TI's SLASEO5D production datasheet and official device nomenclature.
Technical Context
The MSP430FR2673TRHBT implements a dedicated hardware-accelerated CapTIvate module capable of concurrent self- and mutual-capacitance scanning, with built-in spread spectrum, automatic tuning, and noise filtering algorithms. Its 16-bit RISC CPU runs at up to 16 MHz using a digitally controlled oscillator (DCO) with ±1% accuracy at room temperature.
It integrates four Timer_A3 modules (each with three capture/compare registers), one Timer_B7 (seven capture/compare registers), a 12-bit ADC with up to 8 channels, an enhanced comparator with 6-bit DAC reference, and dual eUSCI_A (UART/SPI) and eUSCI_B (SPI/I²C) peripherals - all operating within LQFP-48 or VQFN-32 packages depending on variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with constant generators and 16 registers; enables high code efficiency for low-power embedded firmware. |
| Memory | 16KB program FRAM + 512B information FRAM + 4KB RAM; unified nonvolatile memory supports fast writes, ECC protection, and 10¹⁵ endurance. |
| Capacitive Sensing | Supports up to 16 self-cap and 64 mutual-cap electrodes; hardware state machine enables wake-on-touch at <0.9 µA/button with no CPU involvement. |
| Power Consumption | Active mode: 135 µA/MHz; standby (LPM3): <5 µA with four sensors active; shutdown (LPM4.5): 37 nA without SVS. |
| Analog Peripherals | 12-bit ADC with up to 8 input channels, sample rate up to 200 ksps; enhanced comparator with programmable hysteresis and 6-bit DAC reference. |
| Clock System | On-chip DCO (±1% @ 25°C), REFO (32 kHz), VLO (10 kHz), MODOSC; supports external LFXT crystal; MCLK prescaler 1–128. |
| I/O Count | 27 GPIOs in 32-pin VQFN (RHB) package; all pins support interrupt wake-up from any low-power mode. |
Pinout & Package
Package: 32-pin VQFN (RHB), 5 mm × 5 mm body size, exposed thermal pad, RoHS-compliant. Pinout conforms to TI's SLASEO5D Figure 7-3 (32-Pin RHB Package).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / Non-maskable interrupt / Spy-Bi-Wire data I/O | Primary debug and reset interface; enables in-system programming and low-pin-count JTAG emulation. |
| TEST/SBWTCK | Spy-Bi-Wire clock | Required for SBW-based debugging and flash programming; must be pulled high during normal operation. |
| P1.0–P1.7 | General-purpose I/O with multiple peripheral functions | Support CapTIvate electrodes (CAP0.x/CAP1.x), UART (UCA0), SPI (UCB0), timers (TA0/TA1), analog inputs (A0–A7), and Veref+/-. |
| P2.0/P2.1 | LFXT crystal oscillator terminals | Connect external 32-kHz crystal for precise real-time clock operation; internal load caps configurable via software. |
| P2.2 | SYNC/ACLK/COMP0.1 | Provides ACLK source for RTC and timer synchronization; also serves as comparator input for analog threshold detection. |
| P3.0–P3.7 | CapTIvate electrode I/O (CAP0.x–CAP3.x) | Dedicated pins for self- and mutual-capacitance sensing; support proximity, sliders, wheels, and metal/water-reject designs. |
| P4.0–P4.2 | CAP2.0–CAP2.3 | Additional CapTIvate channel group; enables expansion beyond CAP0/CAP1/CAP3 for multi-zone HMI layouts. |
| VREG | CapTIvate regulator decoupling terminal | Requires 1 µF ceramic capacitor (≤200 mΩ ESR) to stabilize internal touch-sensing voltage reference. |
| DVCC/DVSS | Digital power supply pair | 1.8–3.6 V digital core supply; requires 4.7–10 µF bulk + 0.1 µF local bypass per TI layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware-accelerated CapTIvate engine | Performs electrode scanning, noise filtering, spread spectrum modulation, and threshold detection autonomously-no CPU cycles required during touch detection. |
| FRAM memory architecture | Enables instant write capability, 10¹⁵ endurance, radiation tolerance, and unified storage for code, constants, and data-eliminating EEPROM wear-out concerns. |
| Ultra-low-power wake-on-touch | Consumes <0.9 µA per button while continuously monitoring capacitance changes; supports reliable operation under 10-V RMS common-mode noise and 4-kV EFT. |
| Flexible electrode configuration | Allows mixing self- and mutual-capacitance electrodes on same PCB; supports high-resolution sliders (up to 1024 points), proximity sensing, and metal-over-glass designs. |
| Integrated analog subsystem | Combines 12-bit ADC (8 channels), enhanced comparator with 6-bit DAC reference, and programmable hysteresis-reducing BOM count for sensor signal conditioning. |
Applications
| Smart Lock Keypads | Garden Power Tool Controls |
|---|---|
Use Scenario: Touch-enabled keypad on battery-powered smart door locks, operating in outdoor environments with moisture, dust, and temperature variation. IC Role / Device Role / Timing Role: Primary HMI controller handling button press detection, anti-tamper logic, secure communication, and low-power sleep/wake coordination. Use Value: Enables reliable metal-over-glass touch through 3 mm acrylic with water rejection and immunity to 15-kV ESD per IEC-61000-4-2. |
Use Scenario: Cordless drill or hedge trimmer with sealed, glove-friendly touch controls replacing mechanical switches subject to wear and ingress failure. IC Role / Device Role / Timing Role: Real-time capacitive sensing hub interfacing with motor driver, battery monitor, and Bluetooth LE radio via UART/I²C. Use Value: Achieves <5 µA standby current with four active sensors, extending 18650 Li-ion pack runtime by >30% versus discrete touch solutions. |
| White Goods Control Panels | Wireless Speaker UI |
Use Scenario: Appliance front panel (washer/dryer) requiring wash-resistant, glass-covered touch interface compliant with IEC-61000-4-4 (4-kV EFT) and IEC-61000-4-6 (10-V RMS RF immunity). IC Role / Device Role / Timing Role: Dedicated touch MCU offloading capacitive processing from main application processor; communicates status via I²C. Use Value: Supports simultaneous slider (temperature) and button (cycle select) operation with hardware debouncing and automatic environmental compensation. |
Use Scenario: Premium Bluetooth speaker with gesture-sensitive top-panel controls for volume, play/pause, and voice assistant activation-operating in high-RF-noise consumer environments. IC Role / Device Role / Timing Role: Autonomous touch co-processor managing proximity wake, multi-touch gestures, and LED feedback timing independent of audio SoC. Use Value: Delivers sub-10-ms response latency with hardware-accelerated scan and zero-CPU-intervention wake-on-touch using FRAM-stored calibration data. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar capacitive touch microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR2675TRHB | 32KB FRAM + 512B info FRAM + 6KB RAM; identical CapTIvate engine and pinout in same 32-pin VQFN package. | Supports larger firmware images and more complex touch algorithms; suitable when >16KB code space or >4KB RAM is required. | Select when firmware complexity exceeds MSP430FR2673TRHBT's 16KB FRAM capacity but footprint and peripheral set must remain identical. |
| MSP430FR2672TRHB | 8KB FRAM + 512B info FRAM + 2KB RAM; supports only 24 mutual-capacitance electrodes (vs. 64); same 32-pin VQFN package. | Targeted at cost-sensitive, single-button or basic slider applications with minimal firmware and memory needs. | Choose for entry-level touch interfaces where electrode count ≤24 and code size <8KB; reduces BOM cost without changing PCB layout. |
Compared with MSP430FR2675TRHB, the MSP430FR2673TRHBT offers reduced memory and RAM for tighter cost control while retaining full CapTIvate feature parity; versus MSP430FR2672TRHB, it doubles mutual-cap electrode support and doubles RAM-enabling richer HMI features without package change.
Availability
MSP430FR2673TRHBT is available at Aetrix Electronics and suitable for smart lock keypads, white goods control panels, and cordless power tool interfaces requiring stable component supply, long-term industrial lifecycle support, and guaranteed traceability.
Supply support for MSP430FR2673TRHBT 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 technologies with over 50 years of innovation in low-power microcontrollers and precision analog integration.
The MSP430FR267x family was designed specifically for ultra-low-power capacitive touch HMI applications-integrating autonomous CapTIvate sensing, FRAM memory, and mixed-signal peripherals into a single chip optimized for battery life and noise immunity.
FAQ
What is the maximum number of capacitive touch electrodes supported by the MSP430FR2673TRHBT?
The MSP430FR2673TRHBT supports up to 16 self-capacitance and 64 mutual-capacitance electrodes. This capability is implemented entirely in hardware via the dedicated CapTIvate module, enabling concurrent scanning without CPU intervention. Electrode count is independent of package type and confirmed in TI's SLASEO5D datasheet Section 1 (Features) and Table 6-1 (Device Comparison).
Does the MSP430FR2673TRHBT include on-chip memory with error correction?
Yes, the MSP430FR2673TRHBT includes built-in error correction code (ECC) for its FRAM memory. This applies to both the 16KB program FRAM and 512B information FRAM, protecting against bit errors caused by radiation or electrical stress. ECC operation is transparent and automatic, requiring no firmware overhead - a key reliability feature documented in Section 1 (Features) and Section 9.8 (FRAM) of the SLASEO5D datasheet.
What package type and pin count does the MSP430FR2673TRHBT use?
The MSP430FR2673TRHBT uses a 32-pin VQFN package (RHB), measuring 5 mm × 5 mm with an exposed thermal pad. This is explicitly listed in TI's Device Information table and Figure 7-3 (32-Pin RHB Package) of the SLASEO5D datasheet. The "TRHBT" suffix denotes the RHB package, distinguishing it from PT (LQFP-48) and RHA (VQFN-40) variants.
Can the MSP430FR2673TRHBT operate from a 1.8-V supply?
Yes, the MSP430FR2673TRHBT operates across a supply range of 1.8 V to 3.6 V. Minimum voltage is constrained by SVS (supply voltage supervisor) thresholds, not core logic - confirmed in Section 1 (Features) and Section 8.3 (Recommended Operating Conditions) of SLASEO5D. At 1.8 V, it maintains full CapTIvate functionality and wake-on-touch capability with verified <0.9 µA/button current.
Which development tools are officially supported for the MSP430FR2673TRHBT?
Texas Instruments officially supports the MSP-CAPT-FR2633 CapTIvate Technology Development Kit and the MSP-TS430PT48A target socket board for the MSP430FR2673TRHBT. The CapTIvate Design Center GUI and 16KB ROM-based CapTIvate libraries are included - enabling real-time tuning and code-free touch development. These tools are listed in Section 1 (Features) and Section 11.3 (Tools and Software) of SLASEO5D.
MSP430FR2673TRHBT 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:
- 16.5KB (16.5K x 8)
- Program Memory Type:
- FRAM
- EEPROM Size:
- -
- RAM Size:
- 4K 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:
MSP430FR2673TRHBT FAQ
1.How can I place an order for MSP430FR2673TRHBT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR2673TRHBT 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 MSP430FR2673TRHBT reliable?
The price and inventory of MSP430FR2673TRHBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2673TRHBT is usually 5 days.
3.What payment methods are accepted for MSP430FR2673TRHBT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR2673TRHBT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR2673TRHBT?
MSP430FR2673TRHBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR2673TRHBT 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 MSP430FR2673TRHBT?
For technical support, including MSP430FR2673TRHBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2673TRHBT requirements.
6.How does Aetrix verify that MSP430FR2673TRHBT is sourced from the original manufacturer or authorized distributors?
All MSP430FR2673TRHBT 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 MSP430FR2673TRHBT meets industry standards.
7.What is the process for return or replacement of MSP430FR2673TRHBT?
All MSP430FR2673TRHBT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2673TRHBT, 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 MSP430FR2673TRHBT part is unused and in its original packaging.
Return procedure for MSP430FR2673TRHBT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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