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Texas Instruments MSP430FR2675TRHAR
- Part No.:
- MSP430FR2675TRHAR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR2675TRHAR.pdf
- Description:
- IC MCU 16BIT 32.5KB FRAM 40VQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MSP430FR2675TRHAR from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller with integrated CapTIvate™ capacitive touch sensing, supporting up to 16 self-capacitive and 64 mutual-capacitive electrodes. It features 32KB program FRAM, 512B information FRAM, 6KB RAM, and operates from 1.8 V to 3.6 V. Designed for robust human-machine interface (HMI) in harsh environments, it enables wake-on-touch with <0.9 µA/button and meets IEC-61000-4-2 (15-kV ESD), -4-4 (4-kV EFT), and -4-6 (10-V RMS noise) compliance.
For engineers reviewing the MSP430FR2675TRHAR datasheet, MSP430FR2675TRHAR pinout, MSP430FR2675TRHAR application, or MSP430FR2675TRHAR equivalent, this page delivers verified technical context, package-specific pin functions, real-world HMI use cases, and validated alternative options - all grounded in TI's SLASEO5D production datasheet and official RHA package documentation.
Technical Context
The MSP430FR2675TRHAR integrates a dedicated hardware-accelerated CapTIvate module with concurrent self- and mutual-capacitance scanning, automatic tuning, spread-spectrum modulation, and built-in noise filtering - enabling reliable touch detection through glass, plastic, metal, and wet surfaces. Its 16-bit RISC CPU runs at up to 16 MHz using a digitally controlled oscillator (DCO) with ±1% accuracy at room temperature, supported by low-power modes including LPM4.5 (37 nA shutdown).
It includes four Timer_A3 modules (each with three capture/compare registers), one Timer_B7 (seven CCRs), a dedicated CapTIvate timer, RTC, 12-bit ADC (10 channels in RHA package), enhanced comparator with 6-bit DAC reference, and dual eUSCI_A (UART/SPI/IrDA) and eUSCI_B (SPI/I²C) peripherals - all accessible via 35 GPIOs on the 40-pin VQFN (RHA) package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 registers and constant generators; enables high code efficiency for embedded HMI firmware. |
| Capacitive Sensing | Up to 16 self-cap and 64 mutual-cap electrodes; supports proximity, sliders (up to 1024 points), metal touch, and water rejection. |
| Memory | 32KB + 512B FRAM (nonvolatile, 10¹⁵ write cycles, ECC, unified memory space); 6KB RAM for runtime data and buffers. |
| Power Consumption | <0.9 µA/button in wake-on-touch mode; 135 µA/MHz active; 37 nA in LPM4.5 shutdown - extends battery life in portable HMIs. |
| Analog Peripherals | 12-bit ADC with 10 input channels (RHA package), sample rate up to 200 ksps; enhanced comparator with programmable hysteresis and 6-bit DAC reference. |
| Package & I/O | 40-pin VQFN (RHA), 6 mm × 6 mm; 35 GPIOs, all interrupt-capable for wake-from-LPM; supports pin remap for flexible PCB routing. |
| Clock System | On-chip 16-MHz DCO with FLL (±1% accuracy), 32-kHz REFO (1 µA), 10-kHz VLO, and external LFXT support - enables precise timing without external crystals. |
Pinout & Package
Package: 40-pin VQFN (RHA), 6 mm × 6 mm, exposed thermal pad, RoHS-compliant. Pinout validated per TI SLASEO5D Figure 7-2 and Table 7-2 (Signal Descriptions).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / Non-maskable interrupt / Spy-Bi-Wire data | Primary reset input; also serves as debug interface data line for programming and in-circuit debugging. |
| TEST/SBWTCK | Spy-Bi-Wire clock | Dedicated debug clock input; enables low-pin-count JTAG-like programming and test access. |
| DVCC / DVSS | Digital power supply / ground | Main digital/analog domain supply pair; requires 4.7–10 µF bulk + 0.1 µF ceramic decoupling per TI layout guidelines. |
| VREG | CapTIvate regulator output | Provides regulated voltage for capacitive sensing circuitry; requires 1 µF decoupling capacitor (ESR ≤200 mΩ). |
| P1.0–P1.7, P2.0–P2.7, P3.0–P3.7, P4.0–P4.7, P5.0–P5.2 | GPIO / peripheral multiplexing | 35 total configurable I/Os; each supports interrupt, CapTIvate electrode assignment, UART/I²C/SPI, timer I/O, ADC inputs, and comparator functions. |
| XIN / XOUT | External 32-kHz crystal oscillator terminals | Supports optional low-frequency crystal for RTC accuracy; internal REFO available for crystal-free operation. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware-accelerated CapTIvate engine | Performs electrode scanning, noise filtering, spread-spectrum modulation, and threshold detection autonomously - freeing CPU for application logic. |
| Unified FRAM memory architecture | Eliminates separate flash/EEPROM partitions; enables atomic writes, fast logging, and seamless firmware updates without wear leveling overhead. |
| Wake-on-touch state machine | Scans capacitive sensors in LPM3/LPM4 while CPU remains asleep, achieving sub-µA active touch monitoring with zero firmware intervention. |
| IEC-compliant noise immunity | Validated to withstand 15-kV contact ESD, 4-kV EFT, and 10-V RMS common-mode noise - reduces need for external protection components in end-equipment. |
| CapTIvate Design Center integration | Real-time GUI-based tuning of sensitivity, debounce, and slider resolution - cuts development time from weeks to hours without writing driver code. |
Applications
| Smart Appliance Keypads | Electronic Smart Locks |
|---|---|
Use Scenario: Touch-sensitive control panels on refrigerators, ovens, and washing machines requiring operation through thick glass or stainless steel enclosures. IC Role / Device Role / Timing Role: Primary HMI controller executing CapTIvate scanning, button debouncing, and local LED feedback - independent of main system MCU. Use Value: Enables waterproof, vandal-resistant interfaces with no mechanical wear; supports proximity wake-up to reduce system standby power. |
Use Scenario: Battery-powered door locks with touch keypad entry, tamper detection, and low-power occupancy sensing. IC Role / Device Role / Timing Role: Standalone secure touch controller managing keypress validation, anti-spoofing algorithms, and wake-on-proximity event generation. Use Value: Achieves >1-year battery life using LPM4.5 shutdown and wake-on-touch; meets EN 1303 security grading requirements via hardware noise immunity. |
| Garage Door Control Panels | Wireless Speaker Touch Interfaces |
Use Scenario: Outdoor-rated wall-mounted controllers exposed to rain, dust, and wide temperature swings (-40°C to +85°C). IC Role / Device Role / Timing Role: Environmental-hardened touch sensor hub handling multi-button press, slider volume control, and status LED sequencing. Use Value: Operates reliably under condensation and grease contamination; eliminates false triggers during RF interference from garage motor switching. |
Use Scenario: Premium Bluetooth speakers with gesture-responsive touch surfaces for play/pause, volume, and source selection. IC Role / Device Role / Timing Role: Dedicated capacitive interface processor communicating via I²C to main audio SoC; handles real-time slider tracking and multi-touch gestures. Use Value: Delivers smooth 1024-point slider response with <10-ms latency; leverages FRAM for persistent user preference storage across power cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar capacitive touch microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR2676TRHAR | 64KB + 512B FRAM, 8KB RAM, 10 ADC channels - identical RHA package and pinout. | Higher memory headroom for complex UI logic, OTA updates, or extended sensor fusion algorithms. | Select when firmware size exceeds 32KB or additional RAM is needed for buffering multi-touch gesture history. |
| MSP430FR2675TPT | Same memory (32KB+512B FRAM, 6KB RAM) but 48-pin LQFP (PT) package with 43 GPIOs and 12 ADC channels. | Greater I/O count and ADC channel availability for larger keypads or analog sensor integration. | Choose for designs requiring >35 GPIOs or full 12-channel ADC capability; note PCB redesign required due to package change. |
Compared with MSP430FR2676TRHAR, the MSP430FR2675TRHAR offers optimal cost/performance balance for mid-tier HMIs; versus MSP430FR2675TPT, it trades I/O count and ADC channels for smaller footprint and lower assembly cost - critical for space-constrained consumer electronics.
Availability
MSP430FR2675TRHAR is available at Aetrix Electronics and suitable for smart appliance HMIs, electronic door locks, and industrial control panels requiring stable component supply, long-term lifecycle support, and qualified automotive-grade traceability.
Supply support for MSP430FR2675TRHAR 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 design and precision analog integration.
The MSP430FR267x product line targets ultra-low-power human-machine interface applications, combining autonomous capacitive sensing with FRAM-based nonvolatile memory to simplify HMI development in battery-operated and environmentally demanding systems.
FAQ
What is the maximum number of capacitive touch electrodes supported by the MSP430FR2675TRHAR?
The MSP430FR2675TRHAR supports up to 16 self-capacitive and 64 mutual-capacitive electrodes simultaneously. This capability is implemented in hardware via the integrated CapTIvate module and does not require CPU intervention during scanning - enabling robust multi-touch and high-resolution slider implementations directly on the MSP430FR2675TRHAR device.
Does the MSP430FR2675TRHAR include an integrated ADC, and how many channels are available in the RHA package?
Yes, the MSP430FR2675TRHAR includes a 12-bit successive-approximation ADC with 10 input channels in the 40-pin VQFN (RHA) package. This is confirmed in TI's SLASEO5D datasheet Table 6-1 and Section 8.12.8, where channel count is explicitly specified per package variant - differing from the 12-channel version in the 48-pin LQFP variant.
What package type and dimensions does the MSP430FR2675TRHAR use?
The MSP430FR2675TRHAR uses a 40-pin VQFN package with body size 6 mm × 6 mm and an exposed thermal pad (package code RHA). This is documented in TI's Device Information table and Figure 7-2 of the SLASEO5D datasheet, and is distinct from the 48-pin LQFP (TPT) and 32-pin VQFN (RHB) variants in the same family.
How does the MSP430FR2675TRHAR achieve IEC-61000-4-2 compliance for electrostatic discharge?
The MSP430FR2675TRHAR achieves 15-kV contact ESD immunity per IEC-61000-4-2 through on-die protection structures, built-in spread-spectrum modulation, automatic tuning, and hardware noise filtering within the CapTIvate module - validated in TI's production characterization. System-level ESD protection remains mandatory per TI's caution notice, but the MSP430FR2675TRHAR's intrinsic resilience reduces external component count.
Is the MSP430FR2675TRHAR pin-compatible with other devices in the MSP430FR267x family?
Yes, the MSP430FR2675TRHAR is pin-compatible with the MSP430FR2676TRHAR in the same 40-pin VQFN (RHA) package - sharing identical pin functions, electrical characteristics, and footprint. However, it is not pin-compatible with the 48-pin LQFP (TPT) or 32-pin VQFN (RHB) variants due to differing pin counts and signal allocations.
MSP430FR2675TRHAR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 40-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:
- 35
- 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 10x12b SAR
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR2675TRHAR FAQ
1.How can I place an order for MSP430FR2675TRHAR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR2675TRHAR 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 MSP430FR2675TRHAR reliable?
The price and inventory of MSP430FR2675TRHAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2675TRHAR is usually 5 days.
3.What payment methods are accepted for MSP430FR2675TRHAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR2675TRHAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR2675TRHAR?
MSP430FR2675TRHAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR2675TRHAR 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 MSP430FR2675TRHAR?
For technical support, including MSP430FR2675TRHAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2675TRHAR requirements.
6.How does Aetrix verify that MSP430FR2675TRHAR is sourced from the original manufacturer or authorized distributors?
All MSP430FR2675TRHAR 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 MSP430FR2675TRHAR meets industry standards.
7.What is the process for return or replacement of MSP430FR2675TRHAR?
All MSP430FR2675TRHAR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2675TRHAR, 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 MSP430FR2675TRHAR part is unused and in its original packaging.
Return procedure for MSP430FR2675TRHAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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