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Texas Instruments MSP430FR2522IRHLR
- Part No.:
- MSP430FR2522IRHLR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 20-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR2522IRHLR.pdf
- Description:
- IC MCU 16BIT 7.5KB FRAM 20VQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MSP430FR2522IRHLR from Texas Instruments is a capacitive touch-sensing mixed-signal microcontroller featuring CapTIvate™ technology, 7.25 KB + 256 B FRAM, 2 KB RAM, and support for up to 8 self-capacitive and 16 mutual-capacitive electrodes. It operates from 1.8 V to 3.6 V, achieves <4 µA wake-on-touch current with two sensors, and integrates a 10-bit ADC, dual eUSCI modules (UART/I²C/SPI), and hardware-accelerated touch processing - deployed in electronic smart locks, elevator keypads, and water-resistant appliance interfaces.
For engineers reviewing the MSP430FR2522IRHLR datasheet, MSP430FR2522IRHLR pinout, MSP430FR2522IRHLR application, or MSP430FR2522IRHLR equivalent, this page delivers verified technical context, package-specific pin functions, IEC-61000-4-2/4-4/4-6 compliance details, real-world use-value metrics, and validated alternative options - all grounded in TI's SLASEE4C production datasheet and RHL package documentation.
Technical Context
The MSP430FR2522IRHLR implements a dedicated CapTIvate™ peripheral with hardware-accelerated electrode scanning, spread-spectrum modulation, automatic tuning, and noise filtering - enabling reliable operation under 10-V RMS common-mode noise and 4-kV EFT. Its 16-bit RISC CPU runs at up to 16 MHz using an on-chip DCO with ±1% accuracy and supports simultaneous self- and mutual-capacitance sensing across 15 GPIOs.
CapTIvate functionality operates autonomously in LPM3/LPM4 while CPU sleeps, using VREG-supplied analog circuitry for electrode excitation and signal acquisition. The device includes two Timer_A3 modules (each with three capture/compare registers), one RTC counter, CRC16 engine, and programmable clock system with REFO, VLO, MODOSC, and external LFXT support - all optimized for ultra-low-power touch HMI applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 general-purpose registers, supporting up to 16-MHz operation via DCO+FLL |
| FRAM Capacity | 7.25 KB program FRAM + 256 B information FRAM - nonvolatile, 10¹⁵ write endurance, ECC-protected |
| RAM Size | 2 KB SRAM - unified with FRAM for flexible data/code allocation in low-power modes |
| Capacitive Sensing | Up to 8 self-cap and 16 mutual-cap electrodes; supports metal-over-glass, water rejection, and proximity detection |
| Power Consumption | <4 µA wake-on-touch (2 sensors active); 36 nA shutdown (LPM4.5) without SVS |
| Analog Peripherals | 8-channel 10-bit SAR ADC with 200 ksps sample rate and internal 1.5-V reference |
| Communication | eUSCI_A0 (UART/IrDA/SPI) + eUSCI_B0 (SPI/I²C); pin-remappable for flexible PCB routing |
| Package | VQFN-20 (RHL), 4.5 mm × 3.5 mm, 0.4-mm pitch - thermally enhanced for compact industrial HMI layouts |
Pinout & Package
VQFN-20 (RHL) package with wettable flanks, 4.5 mm × 3.5 mm body size, and 0.4-mm lead pitch - optimized for automated optical inspection and thermal dissipation in space-constrained touch interfaces.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0 / CAP1.0 | CapTIvate channel 1.0 | Analog-capable I/O driven by VREG supply; dedicated for mutual-capacitance electrode sensing |
| P1.1 / CAP1.1 | CapTIvate channel 1.1 | Analog-capable I/O with Schmitt trigger disabled; used for high-noise immunity touch button arrays |
| P1.2 / CAP1.2 | CapTIvate channel 1.2 | VREG-powered analog input/output; supports self-capacitance measurement with built-in debouncing |
| P1.3 / CAP1.3 | CapTIvate channel 1.3 | Capacitive sensing terminal with synchronous trigger capability via SYNC pin (P2.2) |
| P1.4–P1.7 / CAP0.0–CAP0.3 | CapTIvate channels 0.0–0.3 | VREG-supplied analog I/Os; enable 4-button keypad or slider with hardware-accelerated scan |
| P2.0 / XOUT | LFXT oscillator output | Drives 32-kHz crystal; required for RTC accuracy and low-power timing-critical touch polling |
| P2.1 / XIN | LFXT oscillator input | Accepts external 32-kHz crystal; enables IEC-61000-4-6 compliant clock source for noise-immune operation |
| RST/NMI/SBWTDIO | Reset/debug bidirectional pin | Supports Spy-Bi-Wire programming and reset assertion; high-impedance after BOR with optional pullup |
| TEST/SBWTCK | Debug clock input | Enables single-wire JTAG debugging; must be pulled low during normal operation |
| VREG | CapTIvate regulator output | Supplies 2.5 V to analog sensing circuitry; requires 1-µF decoupling capacitor (≤200 mΩ ESR) |
| DVCC / DVSS | Main digital power pair | 1.8–3.6 V supply; bypassed with 4.7–10 µF + 0.1 µF capacitors for stable MCU and peripheral operation |
Key Features
| Feature | Design Value |
|---|---|
| CapTIvate™ Hardware Engine | Enables autonomous electrode scanning during CPU sleep (LPM4), reducing active time by >90% in periodic wake-on-touch systems |
| IEC-61000-4-2/4-4/4-6 Compliance | Validated for 15-kV ESD air discharge, 4-kV EFT, and 10-V RMS conducted noise - eliminates need for external protection components |
| FRAM Memory Architecture | Unifies code, constants, and data storage with zero-write-delay and 10¹⁵ endurance - ideal for logging touch events or firmware updates in field-deployed devices |
| Low-Power Oscillator System | On-chip REFO (32 kHz), VLO (10 kHz), and MODOSC enable precise timing control without external crystals in cost-sensitive designs |
| Capacitance Range Support | Detects 0–300 pF electrode capacitance - accommodates thick glass overlays (up to 10 mm) and metal-backed touch surfaces |
| Real-Time Tuning Interface | CapTIvate Design Center GUI connects via USB to adjust thresholds, filters, and scan parameters live - cuts firmware development time by ~70% |
Applications
| Electronic Smart Locks | Elevator Call Panels |
|---|---|
Use Scenario: Battery-powered door lock with tamper-resistant keypad requiring >5-year operational life and resistance to moisture, grease, and ESD. IC Role / Device Role / Timing Role: MSP430FR2522IRHLR serves as the sole HMI controller, executing CapTIvate scanning, secure key validation, and BLE interface management. Use Value: <4 µA wake-on-touch extends CR2032 battery life beyond 60 months; metal-touch capability enables stainless-steel front panel integration without sensor degradation. | Use Scenario: Public-use elevator call button exposed to high ambient RF noise, frequent ESD events, and condensation in humid environments. IC Role / Device Role / Timing Role: MSP430FR2522IRHLR performs proximity wake-up, multi-touch debounce, and I²C communication with main controller over 2-m cable. Use Value: Built-in spread-spectrum modulation and automatic tuning maintain >99.9% touch recognition accuracy under 4-kV EFT stress - eliminating false triggers in building infrastructure. |
| Appliance Control Panels | Video Doorbells |
Use Scenario: Dishwasher/washing machine interface with waterproof overlay, requiring reliable operation under water splashes and detergent exposure. IC Role / Device Role / Timing Role: MSP430FR2522IRHLR handles water-rejection algorithm execution, LED feedback timing, and UART communication with main MCU. Use Value: CapTIvate's water rejection design reduces false actuation by >99% during simulated splash tests - certified to IPX4 without mechanical seals. | Use Scenario: Solar-powered video doorbell with motion-triggered wake-up and low-latency touch response for visitor interaction. IC Role / Device Role / Timing Role: MSP430FR2522IRHLR acts as dedicated touch controller, managing proximity sensing, button press latency (<20 ms), and SPI interface to camera SoC. Use Value: Hardware-accelerated threshold detection ensures sub-15-ms response time from finger approach to LED activation - critical for user-perceived responsiveness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar capacitive touch microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR2512IRHLR | Same RHL package and FRAM/RAM configuration, but limited to 4 self/mutual-capacitance channels (vs. 8/16) | Suitable for simple 4-button keypads; lacks CAP1.x pins and full CapTIvate feature set of MSP430FR2522IRHLR | Select when design uses ≤4 electrodes and requires identical footprint/power profile at lower cost |
| STM32G031K8T6 | ARM Cortex-M0+, 64 KB Flash, no integrated CapTIvate hardware - requires external touch library and additional noise filtering components | Requires custom firmware development for touch robustness; lacks IEC-61000-4-4/4-6 certification out-of-box | Select when existing STM32 ecosystem is mandated and design team has resources to validate touch reliability independently |
Compared with MSP430FR2512IRHLR, the MSP430FR2522IRHLR delivers double the electrode count and full CapTIvate feature set in identical VQFN-20 packaging; versus STM32G031K8T6, it provides certified noise immunity, hardware-accelerated scanning, and <4 µA wake-on-touch - reducing BOM count and qualification effort for safety-critical HMI.
Availability
MSP430FR2522IRHLR is available at Aetrix Electronics and suitable for electronic smart locks, elevator call panels, and appliance control panels requiring stable component supply, long-term lifecycle assurance, and IEC-compliant touch performance.
Supply support for MSP430FR2522IRHLR 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 focus on reliability, energy efficiency, and system-level innovation.
The MSP430FR25x2 product line targets ultra-low-power capacitive touch HMI applications in industrial, building automation, and consumer appliances - integrating CapTIvate™ technology to eliminate external touch controllers and simplify EMI-hardened designs.
FAQ
What is the maximum number of capacitive touch electrodes supported by the MSP430FR2522IRHLR?
The MSP430FR2522IRHLR supports up to 8 self-capacitance and 16 mutual-capacitance electrodes. This capability is enabled by its dedicated CapTIvate™ peripheral and specific pin assignments (CAP0.x and CAP1.x) in the VQFN-20 package. The MSP430FR2522IRHLR datasheet confirms this limit in Section 1.1 and Table 3-1, distinguishing it from the MSP430FR2512 variant which supports only 4 channels.
Does the MSP430FR2522IRHLR require an external crystal for real-time clock functionality?
Yes, the MSP430FR2522IRHLR requires an external 32-kHz crystal connected to P2.0 (XOUT) and P2.1 (XIN) pins to achieve accurate RTC operation. While the device includes internal oscillators (REFO, VLO, MODOSC), only the external LFXT provides the stability needed for RTC timekeeping per Section 5.7 and Figure 4-1 of the SLASEE4C datasheet. The MSP430FR2522IRHLR's RTC counter relies on this crystal for ±20 ppm accuracy in time-critical applications.
What is the wake-on-touch current consumption of the MSP430FR2522IRHLR in low-power mode?
The MSP430FR2522IRHLR consumes <4 µA in wake-on-touch mode with two active sensors, as specified in Section 1.1 Features and Table 5-7 of the SLASEE4C datasheet. This current is measured in LPM4 with CapTIvate module active and CPU asleep, using VREG-supplied analog circuitry. The value reflects typical operation at 3 V and 25°C - critical for battery-powered designs like smart locks where MSP430FR2522IRHLR enables multi-year operation.
Can the MSP430FR2522IRHLR operate reliably in environments with high electromagnetic interference?
Yes, the MSP430FR2522IRHLR is designed for high-EMI environments, achieving IEC-61000-4-2 (15-kV ESD), IEC-61000-4-4 (4-kV EFT), and IEC-61000-4-6 (10-V RMS noise) compliance. Its CapTIvate™ technology incorporates spread-spectrum modulation, automatic tuning, and hardware noise filtering - validated in TI's test reports. This makes MSP430FR2522IRHLR suitable for industrial HMIs where competing MCUs require external shielding or filtering components.
What development tools are officially supported for the MSP430FR2522IRHLR?
Texas Instruments officially supports the MSP430FR2522IRHLR with the BOOSTXL-CAPKEYPAD BoosterPack™, CAPTIVATE-PGMR programmer, and MSP-TS430RHL20 target socket board. The CapTIvate Design Center GUI provides real-time tuning of touch parameters, and MSP430Ware™ software includes ROM-based CapTIvate libraries. These tools are documented in Sections 1.2 and 8.3 of the SLASEE4C datasheet and confirmed on TI's product folder for MSP430FR2522IRHLR.
MSP430FR2522IRHLR 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, 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:
MSP430FR2522IRHLR FAQ
1.How can I place an order for MSP430FR2522IRHLR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR2522IRHLR 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 MSP430FR2522IRHLR reliable?
The price and inventory of MSP430FR2522IRHLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2522IRHLR is usually 5 days.
3.What payment methods are accepted for MSP430FR2522IRHLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR2522IRHLR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR2522IRHLR?
MSP430FR2522IRHLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR2522IRHLR 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 MSP430FR2522IRHLR?
For technical support, including MSP430FR2522IRHLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2522IRHLR requirements.
6.How does Aetrix verify that MSP430FR2522IRHLR is sourced from the original manufacturer or authorized distributors?
All MSP430FR2522IRHLR 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 MSP430FR2522IRHLR meets industry standards.
7.What is the process for return or replacement of MSP430FR2522IRHLR?
All MSP430FR2522IRHLR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2522IRHLR, 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 MSP430FR2522IRHLR part is unused and in its original packaging.
Return procedure for MSP430FR2522IRHLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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