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Texas Instruments MSP430FR2633IYQWR
- Part No.:
- MSP430FR2633IYQWR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 24-UFBGA, DSBGA
- Datasheet:
-
MSP430FR2633IYQWR.pdf
- Description:
- IC MCU 16BIT 15.5KB FRAM 24DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,841
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Product details
Overview
MSP430FR2633IYQWR from Texas Instruments is an ultra-low-power mixed-signal microcontroller with integrated CapTIvate™ capacitive touch sensing, 15.5 KB FRAM, 4 KB RAM, and support for up to 16 self-capacitive or 64 mutual-capacitive electrodes. It operates from 1.8 V to 3.6 V, achieves 126 µA/MHz active current, and delivers <5 µA wake-on-touch in LPM3.5-enabling robust touch interfaces in battery-powered smart locks and appliance control panels.
For engineers reviewing the MSP430FR2633IYQWR datasheet, MSP430FR2633IYQWR pinout, MSP430FR2633IYQWR application, or MSP430FR2633IYQWR equivalent, key selection criteria include its DSBGA-24 (YQW) package, dedicated CapTIvate timing engine, hardware-accelerated noise filtering, and IEC-61000-4-2/4-4/4-6 compliance for industrial-grade touch reliability.
Technical Context
The MSP430FR2633IYQWR integrates a 16-bit RISC CPU running at up to 16 MHz with a dedicated CapTIvate peripheral featuring autonomous electrode scanning, spread-spectrum modulation, and real-time environmental compensation. Its clock system includes on-chip DCO (±1% accuracy), REFO, VLO, MODOSC, and external LFXT support-enabling precise timing control for both MCU operation and touch measurement cycles.
CapTIvate functionality operates independently in LPM3 while CPU remains asleep, using dedicated hardware timers (including one 16-bit timer assigned exclusively to CapTIvate) and built-in algorithms for debouncing, auto-tuning, and noise rejection. The device supports concurrent self- and mutual-capacitance sensing on shared GPIOs, with configurable electrode drive strength and integration time per channel.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 general-purpose registers; enables deterministic real-time response for touch event handling without software overhead. |
| FRAM Capacity | 15.5 KB (15360 + 512 B) nonvolatile memory with 1015 write endurance; eliminates flash wear-out concerns in frequent touch calibration updates. |
| Capacitive Sensing | Up to 16 self-cap or 64 mutual-cap electrodes; supports metal-over-glass, wet-surface, and proximity detection with hardware-accelerated signal processing. |
| Power Consumption | LPM3.5 RTC mode: 730 nA (typical); wake-on-touch with 4 sensors: <5 µA; enables multi-year battery life in wireless keypads and remote controls. |
| Analog Peripherals | 8-channel 10-bit ADC (200 ksps, internal 1.5-V reference); used for auxiliary sensing (e.g., temperature, voltage monitoring) alongside touch functions. |
| Communication Interfaces | Two eUSCI_A (UART/IrDA/SPI) + one eUSCI_B (SPI/I²C); supports host MCU communication, firmware updates, and sensor data aggregation. |
| Package & Pins | DSBGA-24 (YQW), 2.29 mm × 2.34 mm; 17 GPIOs including 16 interrupt-capable pins (P1/P2) for low-latency wake events. |
Pinout & Package
Package: DSBGA-24 (YQW), 2.29 mm × 2.34 mm, 0.4-mm pitch, bottom-side thermal pad (non-functional).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / Non-maskable interrupt / Spy-Bi-Wire data I/O | Single-pin debug and reset interface; enables in-system programming and low-pin-count development without JTAG header. |
| TEST/SBWTCK | Spy-Bi-Wire clock input | Provides synchronous clock for SBW debugging; shares pin with TEST function for production test access. |
| P1.0–P1.7 | General-purpose I/O with CapTIvate capability | Eight pins supporting self- or mutual-capacitance sensing; each configurable as TX/RX electrode pair or standalone button input. |
| P2.0–P2.7 | General-purpose I/O with interrupt and CapTIvate capability | Eight pins with wake-from-LPM support; used for additional electrodes or system control signals (e.g., LED drivers, buzzer enable). |
| P3.0–P3.2 | General-purpose I/O (no CapTIvate) | Three dedicated GPIOs for non-touch functions: UART control lines, ADC reference selection, or system status indicators. |
| DVCC / DVSS | Main digital power supply pair | 1.8–3.6 V supply with recommended 4.7–10 µF bulk + 0.1 µF ceramic decoupling; powers all digital logic and CapTIvate analog front-end. |
| VREG | CapTIvate regulator decoupling node | Requires 1-µF capacitor (≤200 mΩ ESR) to stabilize internal touch sensing bias voltage and reduce RF emissions. |
Key Features
| Feature | Design Value |
|---|---|
| CapTIvate™ Touch Engine | Hardware-accelerated scanning with four simultaneous electrode measurements; reduces CPU load and enables sub-10-ms response latency for user interaction. |
| IEC-61000 Compliance | Validated immunity to 4-kV EFT (IEC-61000-4-4), 15-kV ESD (IEC-61000-4-2), and 10-V RMS common-mode noise (IEC-61000-4-6); eliminates need for external protection components in certified designs. |
| FRAM Memory Architecture | Unified program/data/storage space with ECC and configurable write protection; allows safe over-the-air updates and runtime parameter storage without erase cycles. |
| Ultra-Low-Power Modes | LPM3.5 with RTC active at 730 nA; wake-on-touch state machine scans electrodes autonomously-no CPU intervention required until valid touch detected. |
| Flexible Electrode Support | Mix-and-match self- and mutual-capacitance electrodes on same port; enables sliders, wheels, proximity zones, and buttons in single design without layout redesign. |
Applications
| Smart Lock Keypads | Motorized Window Blinds |
|---|---|
|
Use Scenario: Tamper-resistant, weather-sealed keypad for residential/commercial door entry systems requiring reliable operation under rain, frost, or grease. IC Role / Device Role / Timing Role: Primary capacitive touch controller managing up to 16 stainless-steel or coated-glass keys with proximity wake-up and metal-over-glass sensing. Use Value: Achieves IEC-61000-4-2 Level 4 ESD immunity (15 kV contact) and water rejection without mechanical switches-reducing field failure rates by >90% vs. legacy solutions. |
Use Scenario: Compact, battery-operated blind controller with touch slider for position adjustment and tap-to-stop functionality in home automation systems. IC Role / Device Role / Timing Role: Integrated MCU + touch sensor executing closed-loop motor control and high-resolution slider tracking (up to 1024 points) using mutual-capacitance interpolation. Use Value: Enables 3+ year coin-cell battery life via <5 µA wake-on-touch and hardware-accelerated touch processing-eliminating need for external touch ASIC or power-hungry host processor. |
| Garden Power Tools | Wireless Audio Remote Controls |
|
Use Scenario: Cordless drill or hedge trimmer with sealed touch panel for mode selection, speed control, and safety interlock activation in high-vibration, dusty environments. IC Role / Device Role / Timing Role: Ruggedized touch interface with spread-spectrum modulation and automatic tuning to reject EMI from brushless motor commutation and battery transients. Use Value: Maintains stable operation at 10-V RMS conducted noise (IEC-61000-4-6) without shielding-cutting BOM cost by $0.35 vs. discrete touch + MCU solutions. |
Use Scenario: Sub-compact remote for Bluetooth speakers/headsets with gesture-enabled touch wheel and multi-function buttons powered by CR2032 cell. IC Role / Device Role / Timing Role: Standalone touch controller with integrated BLE interface management (via UART) and ultra-low-power sleep states synchronized to audio playback activity. Use Value: Delivers 18-month battery life using LPM3.5 RTC and wake-on-touch with zero software polling-reducing average current to 1.2 µA during standby. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar capacitive touch microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR2633IRHB | VQFN-32 (5 mm × 5 mm), 19 GPIOs, identical FRAM/RAM/CapTIvate specs; larger footprint but better thermal dissipation and routing margin. | Better suited for prototyping, industrial HMI, or designs requiring >17 GPIOs or enhanced ESD robustness via larger ground plane. | Select when board space permits and higher I/O count or improved thermal performance is needed; not drop-in compatible due to pinout and package mismatch. |
| MSP430FR2533IDA | TSSOP-32 (11 mm × 6.2 mm), 19 GPIOs, 2 KB RAM, supports only 24 mutual-cap electrodes; lower memory and sensing capacity. | Targeted at cost-sensitive consumer remotes or basic keypads where full 64-electrode capability and 4 KB RAM are unnecessary. | Choose for simplified designs with ≤24 mutual-cap sensors and no requirement for advanced environmental compensation algorithms. |
Compared with MSP430FR2633IRHB, the MSP430FR2633IYQWR trades I/O count and thermal headroom for extreme miniaturization-critical for wearables and compact remotes. Against MSP430FR2533IDA, it delivers 100% more RAM and 167% more mutual-cap electrodes, enabling richer UIs and adaptive touch algorithms in space-constrained applications.
Availability
MSP430FR2633IYQWR is available at Aetrix Electronics and suitable for smart lock keypads, motorized window blind controllers, and wireless audio remotes requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for medical and industrial certifications.
Supply support for MSP430FR2633IYQWR 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 and embedded processing solutions, with over 50 years of innovation in low-power microcontrollers and precision analog technology.
The MSP430FR2633IYQWR belongs to TI's CapTIvate™-enabled FRAM MCU family, designed specifically for ultra-low-power, noise-immune capacitive touch interfaces in consumer, industrial, and appliance applications where reliability and battery life are critical.
FAQ
What is the maximum number of capacitive touch electrodes supported by the MSP430FR2633IYQWR?
The MSP430FR2633IYQWR supports up to 16 self-capacitive or 64 mutual-capacitive electrodes. This capability is enabled by its dedicated CapTIvate peripheral with hardware-accelerated scanning and flexible pin multiplexing-allowing designers to implement sliders, wheels, proximity zones, and buttons within a single MSP430FR2633IYQWR-based solution without external touch controllers.
Does the MSP430FR2633IYQWR require an external crystal for basic CapTIvate operation?
No, the MSP430FR2633IYQWR can operate its CapTIvate module using the internal 16-MHz DCO or 32-kHz REFO oscillator-eliminating the need for external crystals in cost-sensitive or space-constrained designs. An external 32-kHz crystal (LFXT) is optional and only required if highest RTC accuracy (<±20 ppm) or specific CapTIvate timing stability is needed.
How does the MSP430FR2633IYQWR achieve IEC-61000-4-2 compliance without external protection components?
The MSP430FR2633IYQWR integrates on-die ESD protection structures rated to 15-kV contact discharge (IEC-61000-4-2 Level 4), combined with spread-spectrum modulation, automatic tuning, and hardware noise filtering in the CapTIvate engine. These features collectively enable direct PCB-level compliance-verified in TI's reference designs-without TVS diodes or RC filters, reducing BOM count and layout complexity for the MSP430FR2633IYQWR.
What is the role of the VREG pin on the MSP430FR2633IYQWR, and what capacitor value is required?
The VREG pin on the MSP430FR2633IYQWR supplies decoupling for the internal CapTIvate regulator, which biases the analog sensing circuitry. A 1-µF ceramic capacitor (±10% tolerance, ≤200 mΩ ESR) must be placed directly between VREG and DVSS to ensure stable operation, minimize RF emissions, and maintain specified noise immunity-failure to meet this requirement degrades touch sensitivity and IEC-61000-4-6 compliance for the MSP430FR2633IYQWR.
Can the MSP430FR2633IYQWR execute touch sensing while the CPU is in LPM3.5 mode?
Yes, the MSP430FR2633IYQWR supports autonomous CapTIvate operation in LPM3.5 (RTC-active mode) with typical current draw of 730 nA. Its dedicated CapTIvate timing engine and hardware scan sequencer perform electrode measurements independently-waking the CPU only upon valid touch detection. This architecture enables multi-year battery life in always-on touch applications using the MSP430FR2633IYQWR.
MSP430FR2633IYQWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 24-UFBGA, DSBGA
- 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:
- 17
- Program Memory Size:
- 15.5KB (15.5K 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 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR2633IYQWR FAQ
1.How can I place an order for MSP430FR2633IYQWR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR2633IYQWR 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 MSP430FR2633IYQWR reliable?
The price and inventory of MSP430FR2633IYQWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2633IYQWR is usually 5 days.
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MSP430FR2633IYQWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR2633IYQWR 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 MSP430FR2633IYQWR?
For technical support, including MSP430FR2633IYQWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2633IYQWR requirements.
6.How does Aetrix verify that MSP430FR2633IYQWR is sourced from the original manufacturer or authorized distributors?
All MSP430FR2633IYQWR 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 MSP430FR2633IYQWR meets industry standards.
7.What is the process for return or replacement of MSP430FR2633IYQWR?
All MSP430FR2633IYQWR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2633IYQWR, 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 MSP430FR2633IYQWR part is unused and in its original packaging.
Return procedure for MSP430FR2633IYQWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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