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Texas Instruments MSP430FR2522IRHLT
- Part No.:
- MSP430FR2522IRHLT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 20-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR2522IRHLT.pdf
- Description:
- IC MCU 16BIT 7.5KB FRAM 20VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:500
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Product details
Overview
MSP430FR2522IRHLT from Texas Instruments is an ultra-low-power mixed-signal microcontroller with integrated CapTIvate™ capacitive touch sensing technology, designed for cost-sensitive industrial and consumer HMI applications. It features 7.25 KB FRAM + 256 B information FRAM, 2 KB RAM, 8 self-capacitive and 16 mutual-capacitive electrodes, and operates from 1.8 V to 3.6 V. It delivers IEC-61000-4-2/4-4/4-6 compliance in smart locks, elevator keypads, and water-resistant appliance controls.
For engineers reviewing the MSP430FR2522IRHLT datasheet, MSP430FR2522IRHLT pinout, MSP430FR2522IRHLT application, or MSP430FR2522IRHLT equivalent, this page provides verified technical context, validated pin functions, confirmed CapTIvate electrode configuration, low-power mode current specs, and real-world design constraints for metal-overlaid or wet-environment touch interfaces.
Technical Context
The MSP430FR2522IRHLT integrates a 16-bit RISC CPU running up to 16 MHz with dedicated hardware-accelerated CapTIvate sensing logic that supports simultaneous two-electrode scanning and built-in spread-spectrum modulation. Its analog front end includes a dedicated VREG-supplied CapTIvate regulator and configurable electrode drivers supporting both self- and mutual-capacitance topologies.
It implements autonomous wake-on-touch operation in LPM3.5/LPM4 modes using the CapTIvate state machine while the CPU remains asleep, with <4 µA total current draw across two active sensors. The device uses FRAM-based unified memory architecture with ECC and configurable write protection, enabling robust firmware updates and data logging without wear-out concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 MHz max clock speed and hardware multiplier |
| Memory | 7.25 KB program FRAM + 256 B info FRAM + 2 KB SRAM; 10¹⁵ write endurance |
| Capacitive Sensing | Up to 8 self-cap and 16 mutual-cap electrodes; supports metal overlay and water rejection |
| Power Consumption | Active mode: 120 µA/MHz; Standby wake-on-touch: <4 µA (2 sensors); LPM4.5: 36 nA |
| Analog Peripherals | 8-channel 10-bit ADC (200 ksps), internal 1.5-V reference, sample-and-hold |
| Digital Peripherals | Two Timer_A3 modules (3 CCR each), RTC counter, CRC16, eUSCI_A (UART/IrDA/SPI), eUSCI_B (SPI/I²C) |
| Supply Range | 1.8 V to 3.6 V; minimum voltage constrained by SVS thresholds |
Pinout & Package
VQFN-20 (RHL) package, 4.5 mm × 3.5 mm body size, 0.4 mm pitch, wettable flank terminals, thermally enhanced exposed pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0 / CAP1.0 | CapTIvate electrode channel | Analog-capable I/O driven by VREG; dedicated self/mutual-cap sensing path for MSP430FR2522 only |
| P1.1 / CAP1.1 | CapTIvate electrode channel | Analog-capable I/O driven by VREG; enables second independent CapTIvate bank beyond CAP0.x |
| P1.2 / CAP1.2 | CapTIvate electrode channel | Analog-capable I/O driven by VREG; supports mutual-capacitance matrix expansion |
| P1.3 / CAP1.3 | CapTIvate electrode channel | Analog-capable I/O driven by VREG; completes CAP1.x group for 4 additional electrodes |
| P1.4–P1.7 / CAP0.0–CAP0.3 | CapTIvate electrode channels | VREG-supplied analog I/Os forming primary 4-electrode CapTIvate bank with shared scan logic |
| VREG | CapTIvate regulator output | Internal LDO output requiring 1 µF decoupling (≤200 mΩ ESR); powers all CapTIvate analog circuitry |
| DVCC / DVSS | Main digital/analog supply pair | 1.8–3.6 V digital core and peripheral supply; requires 4.7–10 µF + 0.1 µF bypassing |
| RST/NMI/SBWTDIO | Debug and reset interface | Combined JTAG/Spy-Bi-Wire pin; supports programming, debugging, and non-maskable interrupt |
| TEST/SBWTCK | Debug clock input | Enables Spy-Bi-Wire communication; must be pulled high during normal operation |
| P2.0 / XOUT, P2.1 / XIN | LFXT crystal oscillator interface | Supports external 32-kHz crystal for RTC accuracy; requires load capacitors per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| CapTIvate™ noise immunity | Validated 10-V RMS common-mode noise rejection and 4-kV EFT/15-kV ESD tolerance per IEC-61000-4-4/4-2 |
| Autonomous wake-on-touch | Hardware state machine scans electrodes in LPM3.5/LPM4 without CPU wake-up; <4 µA system current |
| Flexible electrode topology | Configurable mix of self- and mutual-capacitance electrodes on same MCU; no external components required |
| FRAM reliability | ECC-protected nonvolatile memory with 10¹⁵ write cycles; radiation resistant and nonmagnetic for harsh environments |
| Real-time tuning support | CapTIvate Design Center GUI enables live parameter adjustment (threshold, debounce, spread spectrum) without code recompile |
Applications
| Smart Lock Keypads | Elevator Call Panels |
|---|---|
Use Scenario: Touch keypad on outdoor-rated smart lock housing exposed to rain, salt spray, and temperature cycling. IC Role / Device Role / Timing Role: Primary capacitive touch controller with metal-over-glass overlay and proximity wake-up; manages secure authentication sequence timing. Use Value: Enables reliable button detection through 2-mm stainless steel overlay and rejects false triggers from water droplets using adaptive filtering algorithms. | Use Scenario: Public-use elevator call button panel requiring vandal resistance, glove operation, and ESD survivability in high-traffic lobbies. IC Role / Device Role / Timing Role: Dedicated HMI processor handling multi-touch gesture recognition and LED feedback timing via GPIO-controlled drivers. Use Value: Delivers IEC-61000-4-2 Level 4 (15 kV air/8 kV contact) immunity and supports simultaneous press detection across 8+ buttons. |
| Appliance Control Panels | Video Doorbells |
Use Scenario: Wash-resistant kitchen appliance control surface with glass front panel and condensation exposure. IC Role / Device Role / Timing Role: Standalone touch sensor MCU managing water rejection logic, backlight dimming timing, and fault-safe power-down sequencing. Use Value: Maintains functional integrity under 95% RH continuous operation and detects intentional touch through 3-mm tempered glass with <10-ms response latency. | Use Scenario: Battery-powered video doorbell with motion-triggered wake-up and low-power always-on touch sensing for door release. IC Role / Device Role / Timing Role: Ultra-low-power capacitive wake controller interfacing with main SoC via GPIO interrupt; handles proximity-to-touch transition timing. Use Value: Achieves <4 µA standby current with two active electrodes, extending coin-cell battery life to >12 months in intermittent-use deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar capacitive touch sensing microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR2512IRHLT | Same VQFN-20 package and FRAM memory size, but limited to 4 self/mutual-cap electrodes (no CAP1.x pins) | Suitable for simpler 4-button keypads without metal overlay or proximity requirements | Select when electrode count and noise immunity requirements are lower; reduces BOM cost where full CapTIvate feature set is unnecessary |
| STM32G031K8T6 | ARM Cortex-M0+, 64 KB Flash, no integrated CapTIvate hardware; requires external touch library and calibration effort | Better suited for designs needing general-purpose MCU features alongside basic touch, not certified ESD/EMI performance | Choose when existing STM32 ecosystem familiarity outweighs need for out-of-box IEC-compliant touch; adds software development overhead |
Compared with MSP430FR2512IRHLT and STM32G031K8T6, the MSP430FR2522IRHLT uniquely delivers production-ready, hardware-accelerated CapTIvate functionality with IEC-certified noise immunity and <4 µA wake-on-touch-enabling faster time-to-market for ruggedized touch interfaces without custom analog front-end design.
Availability
MSP430FR2522IRHLT is available at Aetrix Electronics and suitable for smart lock systems, elevator control panels, and appliance HMIs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for industrial OEM programs.
Supply support for MSP430FR2522IRHLT 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 low-power design, precision analog, and industrial-grade reliability.
The MSP430FR25x2 product line was engineered specifically for ultra-low-power capacitive touch sensing in electrically noisy, moisture-prone, or metal-enclosed environments-targeting industrial HMI, building automation, and consumer appliance applications.
FAQ
What is the maximum number of capacitive touch electrodes supported by the MSP430FR2522IRHLT?
The MSP430FR2522IRHLT supports up to 8 self-capacitance and 16 mutual-capacitance electrodes. This capability is enabled by two independent CapTIvate banks: CAP0.x (P1.4–P1.7) and CAP1.x (P1.0–P1.1, P1.2–P1.3), with full hardware acceleration and no external components required. The MSP430FR2522IRHLT datasheet confirms this configuration applies specifically to the RHL package variant.
Does the MSP430FR2522IRHLT support metal-over-glass touch sensing?
Yes, the MSP430FR2522IRHLT supports metal-over-glass touch sensing through its CapTIvate™ technology, which includes built-in spread spectrum modulation, automatic tuning, and noise filtering algorithms. It is explicitly validated for operation through stainless steel overlays and meets IEC-61000-4-2/4-4/4-6 standards-key capabilities documented for the MSP430FR2522IRHLT in TI's SLASEE4C datasheet.
What is the typical current consumption of the MSP430FR2522IRHLT in wake-on-touch standby mode?
The MSP430FR2522IRHLT consumes less than 4 µA in standby mode with wake-on-touch enabled across two active sensors. This value is measured under recommended operating conditions (1.8–3.6 V, 25°C) and includes full CapTIvate module operation while the CPU remains in LPM3.5 or LPM4 sleep states-confirmed in Section 5.7 of the MSP430FR2522IRHLT datasheet.
Which development tools are officially supported for the MSP430FR2522IRHLT?
Texas Instruments officially supports the BOOSTXL-CAPKEYPAD BoosterPack™ with CAPTIVATE-PGMR programmer and the MSP-TS430RHL20 target socket board for the MSP430FR2522IRHLT. These tools integrate with the CapTIvate Design Center GUI for real-time tuning and the MSP430Ware™ software library, enabling rapid prototyping without low-level register coding for the MSP430FR2522IRHLT.
Is the MSP430FR2522IRHLT pin-compatible with other devices in the MSP430FR25x2 family?
The MSP430FR2522IRHLT in the VQFN-20 (RHL) package shares identical pinout and footprint with the MSP430FR2512IRHLT, including DVCC, DVSS, RST/NMI, and CapTIvate electrode assignments for CAP0.x. However, CAP1.x pins (P1.0–P1.3) are unused on MSP430FR2512IRHLT and must be left unconnected or configured as GPIO in designs targeting both variants.
MSP430FR2522IRHLT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 20-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, Cap Sense, POR, PWM, WDT
- Number of I/O:
- 15
- Program Memory Size:
- 7.5KB (7.5K x 8)
- Program Memory Type:
- FRAM
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 2V ~ 3.6V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR2522IRHLT FAQ
1.How can I place an order for MSP430FR2522IRHLT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR2522IRHLT 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 MSP430FR2522IRHLT reliable?
The price and inventory of MSP430FR2522IRHLT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2522IRHLT is usually 5 days.
3.What payment methods are accepted for MSP430FR2522IRHLT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR2522IRHLT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR2522IRHLT?
MSP430FR2522IRHLT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR2522IRHLT 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 MSP430FR2522IRHLT?
For technical support, including MSP430FR2522IRHLT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2522IRHLT requirements.
6.How does Aetrix verify that MSP430FR2522IRHLT is sourced from the original manufacturer or authorized distributors?
All MSP430FR2522IRHLT 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 MSP430FR2522IRHLT meets industry standards.
7.What is the process for return or replacement of MSP430FR2522IRHLT?
All MSP430FR2522IRHLT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2522IRHLT, 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 MSP430FR2522IRHLT part is unused and in its original packaging.
Return procedure for MSP430FR2522IRHLT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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