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Texas Instruments MSP430FR2675TRHBT
- Part No.:
- MSP430FR2675TRHBT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR2675TRHBT.pdf
- Description:
- IC MCU 16BIT 32.5KB FRAM 32VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,549
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Product details
Overview
MSP430FR2675TRHBT 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, 6KB RAM, and operates from 1.8 V to 3.6 V with active-mode current of 135 µA/MHz. Used in appliance control panels and smart locks where reliable wake-on-touch and IEC-61000-4-2/4-4/4-6 compliance are required.
For engineers reviewing the MSP430FR2675TRHBT datasheet, MSP430FR2675TRHBT pinout, MSP430FR2675TRHBT application, or MSP430FR2675TRHBT equivalent, key selection criteria include electrode count (16 self + 64 mutual), FRAM size (32KB), LQFP-48 package compatibility, and CapTIvate hardware acceleration for noise-immune touch detection in wet or metal-overlaid environments.
Technical Context
The MSP430FR2675TRHBT integrates a dedicated CapTIvate timing module and hardware state machine enabling concurrent electrode scanning while the CPU remains in LPM3 or LPM4 sleep modes. Its analog front-end includes programmable hysteresis eCOMP, 12-bit ADC with 12 channels, and internal 1.5/2.0/2.5 V reference - all optimized for capacitive signal conditioning under 10-V RMS common-mode noise.
It employs a 16-MHz DCO with FLL and ±1% accuracy at room temperature, paired with low-power clock sources including REFO (1 µA), VLO (10 kHz), and LFXT support. The device uses unified FRAM memory with ECC, 10¹⁵ write endurance, and configurable write protection - eliminating flash wear-out concerns in touch firmware updates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with constant generators and 16 registers for high code efficiency |
| Capacitive Sensing | Up to 16 self-cap and 64 mutual-cap electrodes; supports proximity, sliders (1024-point), and metal/water rejection |
| Memory | 32KB program FRAM + 512B info FRAM + 6KB RAM; unified memory space with ECC and write protection |
| Power Consumption | 135 µA/MHz active; <5 µA standby with 4-sensor wake-on-touch; 37 nA shutdown (LPM4.5) |
| Analog Peripherals | 12-bit ADC (12 ch, 200 ksps), enhanced comparator with 6-bit DAC reference, internal 1.5/2.0/2.5 V reference |
| Digital Peripherals | Four Timer_A3 (3 CCR each), one Timer_B7 (7 CCR), RTC, CRC16, two eUSCI_A (UART/SPI), two eUSCI_B (SPI/I²C) |
| Supply Voltage | 1.8 V to 3.6 V; minimum limited by SVS thresholds, not absolute rail limit |
Pinout & Package
LQFP-48 package (7 mm × 7 mm) with 43 GPIOs - all support interrupt wake-up from low-power modes. VREG decoupling requires 1 µF capacitor (ESR ≤200 mΩ); DVCC/DVSS pair supplies digital/analog domains with recommended 4.7–10 µF + 0.1 µF bypassing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset & debug interface | Active-low reset input; dual-function pin for Spy-Bi-Wire debug communication |
| P1.0–P1.7, P2.0–P2.7, P3.0–P3.7, P4.0–P4.7, P5.0–P5.7, P6.0–P6.1 | Configurable GPIO | All 43 pins support CapTIvate electrode assignment, peripheral multiplexing, and interrupt wake-up |
| VREG | CapTIvate regulator output | Provides regulated voltage for CapTIvate analog circuitry; requires dedicated 1 µF decoupling |
| XIN/XOUT | LFXT crystal interface | Supports external 32-kHz crystal for precise RTC and low-power timing; optional for CapTIvate operation |
| DVCC/DVSS | Main power pair | Supplies digital logic, CapTIvate module, and analog peripherals; separate from VREG domain |
Key Features
| Feature | Design Value |
|---|---|
| CapTIvate hardware engine | Enables four simultaneous electrode scans and automatic tuning without CPU intervention, reducing wake latency to <10 µs |
| IEC-compliant noise immunity | Validated for 4-kV EFT (IEC-61000-4-4), 15-kV ESD (IEC-61000-4-2), and 10-V RMS conducted noise (IEC-61000-4-6) |
| FRAM endurance & reliability | 10¹⁵ write cycles, radiation resistance, nonmagnetic behavior, and built-in ECC for robust firmware storage |
| Low-power wake-on-touch | <0.9 µA/button in LPM4.5; CapTIvate state machine performs full electrode scan and threshold detection autonomously |
| Flexible electrode configuration | Self- and mutual-capacitance electrodes can be mixed on same PCB; supports multi-touch and high-resolution sliders |
Applications
| Appliance Control Panels | Smart Lock Keypads |
|---|---|
Use Scenario: Touch-enabled user interface on refrigerators, ovens, and washing machines with glass or stainless-steel overlays. IC Role / Device Role / Timing Role: Primary MCU executing CapTIvate firmware, managing display backlight, and interfacing with system MCU via UART/I²C. Use Value: Enables reliable button detection through 3-mm thick metal or wet surfaces, meeting IEC-61000-4-2/4-4 requirements without external shielding. |
Use Scenario: Battery-powered electronic door lock with tamper-resistant keypad and low-power occupancy sensing. IC Role / Device Role / Timing Role: Standalone touch controller handling wake-on-touch, anti-tamper algorithms, and secure key validation before releasing latch. Use Value: Achieves >1-year battery life using <5 µA standby current with four active sensors and hardware-accelerated environmental compensation. |
| Garage Door Controllers | Wireless Audio Remotes |
Use Scenario: Outdoor-rated wall-mounted control panel exposed to rain, dust, and wide temperature swings. IC Role / Device Role / Timing Role: Dedicated CapTIvate MCU driving proximity wake-up and button press detection, communicating status via SPI to main controller. Use Value: Maintains functionality under 10-V RMS common-mode noise and supports water rejection design per TI CapTIvate guidelines. |
Use Scenario: Compact handheld remote for speakers/headsets requiring multi-touch slider and gesture support. IC Role / Device Role / Timing Role: Touch sensor hub processing slider position, button presses, and proximity wake, then transmitting commands via UART to Bluetooth SoC. Use Value: Delivers 1024-point slider resolution and sub-100-ms response time using hardware-accelerated CapTIvate engine and FRAM-based firmware updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar capacitive touch microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR2676TRHBT | 64KB FRAM, 8KB RAM, identical CapTIvate capability and pinout | Required when firmware exceeds 32KB or additional RAM needed for complex UI logic | Select when future-proofing memory headroom or adding OTA update capability |
| MSP430FR2673TRHBT | 16KB FRAM, 4KB RAM, supports only 16 self- and 24 mutual-cap electrodes | Suitable for simpler interfaces with ≤4 buttons and no slider/proximity | Choose for cost-sensitive designs with minimal touch complexity and lower memory needs |
Compared with MSP430FR2675TRHBT, the MSP430FR2676TRHBT offers double FRAM and RAM for advanced UIs without changing layout, while the MSP430FR2673TRHBT reduces memory and electrode count - making it viable only for basic touch applications with tighter BOM constraints.
Availability
MSP430FR2675TRHBT is available at Aetrix Electronics and suitable for appliance control panels, smart lock keypads, and garage door systems requiring stable component supply across industrial production lifecycles.
Supply support for MSP430FR2675TRHBT 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 company delivering analog and embedded processing solutions, with leadership in precision analog integration and low-power microcontroller innovation.
The MSP430FR267x product line is designed specifically for ultra-low-power capacitive touch sensing in harsh environments - integrating CapTIvate technology, FRAM, and autonomous hardware engines to eliminate host MCU overhead in HMI applications.
FAQ
What is the maximum number of capacitive touch electrodes supported by the MSP430FR2675TRHBT?
The MSP430FR2675TRHBT supports up to 16 self-capacitive and 64 mutual-capacitive electrodes simultaneously. This configuration is confirmed in the device comparison table and functional block diagram. Electrode count is fixed per variant - the MSP430FR2675TRHBT does not scale beyond these limits, regardless of firmware optimization or pin remapping.
Does the MSP430FR2675TRHBT require an external crystal for CapTIvate operation?
No, the MSP430FR2675TRHBT does not require an external crystal for CapTIvate operation. Its on-chip 32-kHz REFO oscillator (1 µA typical) provides sufficient timing accuracy for touch scanning. An external 32-kHz crystal (LFXT) is optional and used only when higher RTC precision or system-level synchronization is needed.
What is the wake-on-touch current consumption of the MSP430FR2675TRHBT in low-power mode?
The MSP430FR2675TRHBT consumes <5 µA in standby mode with four active capacitive sensors enabled and CPU asleep. This value is measured under typical conditions per Section 8.7 of the datasheet and includes full CapTIvate module operation - electrode scanning, filtering, and threshold detection - executed autonomously by hardware.
How does the FRAM memory in the MSP430FR2675TRHBT differ from traditional flash in touch applications?
The MSP430FR2675TRHBT uses 32KB of ferroelectric RAM (FRAM) with 10¹⁵ write endurance, ECC, and unified memory mapping - enabling safe over-the-air firmware updates and frequent parameter logging without wear-out risk. Unlike flash, FRAM writes are byte-addressable and consume no extra power for erase cycles, critical for battery-powered touch devices.
Can the MSP430FR2675TRHBT drive both self-capacitive and mutual-capacitive electrodes in the same design?
Yes, the MSP430FR2675TRHBT explicitly supports mixing self-capacitive and mutual-capacitive electrodes in the same PCB layout. This flexibility is documented in the CapTIvate technology features and verified in the device comparison table - allowing designers to combine simple buttons (self-cap) with sliders or proximity zones (mutual-cap) on one MCU.
MSP430FR2675TRHBT 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:
MSP430FR2675TRHBT FAQ
1.How can I place an order for MSP430FR2675TRHBT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR2675TRHBT 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 MSP430FR2675TRHBT reliable?
The price and inventory of MSP430FR2675TRHBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2675TRHBT is usually 5 days.
3.What payment methods are accepted for MSP430FR2675TRHBT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR2675TRHBT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR2675TRHBT?
MSP430FR2675TRHBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR2675TRHBT 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 MSP430FR2675TRHBT?
For technical support, including MSP430FR2675TRHBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2675TRHBT requirements.
6.How does Aetrix verify that MSP430FR2675TRHBT is sourced from the original manufacturer or authorized distributors?
All MSP430FR2675TRHBT 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 MSP430FR2675TRHBT meets industry standards.
7.What is the process for return or replacement of MSP430FR2675TRHBT?
All MSP430FR2675TRHBT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2675TRHBT, 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 MSP430FR2675TRHBT part is unused and in its original packaging.
Return procedure for MSP430FR2675TRHBT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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