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Texas Instruments MSP430FR2633IDAR
- Part No.:
- MSP430FR2633IDAR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 32-TSSOP (0.240", 6.10mm Width)
- Datasheet:
-
MSP430FR2633IDAR.pdf
- Description:
- IC MCU 16BIT 15.5KB FRAM 32TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,773
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Product details
Overview
MSP430FR2633IDAR from Texas Instruments is a capacitive touch-sensing mixed-signal microcontroller featuring CapTIvate™ technology, 16-bit RISC CPU, 15.5 KB FRAM (15 KB program + 512 B info), 4 KB RAM, and support for up to 16 self- or 64 mutual-capacitance electrodes. It operates from 1.8 V to 3.6 V, achieves <5 µA wake-on-touch current with four sensors, and targets HMI applications in harsh environments including wet, greasy, or metal-enclosed systems.
For engineers reviewing the MSP430FR2633IDAR datasheet, MSP430FR2633IDAR pinout, MSP430FR2633IDAR application, or MSP430FR2633IDAR equivalent, key selection criteria include its integrated CapTIvate hardware accelerator, LPM3.5 RTC operation at 730 nA, 10-bit ADC with 200 ksps sampling, dual eUSCI_A (UART/SPI/IrDA) and eUSCI_B (I²C/SPI), and TSSOP-32 package compatibility with industrial HMI layout constraints.
Technical Context
The MSP430FR2633IDAR integrates 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 IEC‑61000-4-2/4-4/4-6 compliance. Its clock system includes on-chip 16-MHz DCO with FLL, 32-kHz REFO, 10-kHz VLO, and external LFXT support, with programmable MCLK/SMCLK prescalers.
It features two Timer_A3 modules (each with three capture/compare registers), two Timer_A2 modules (each with two registers), and one CapTIvate-dedicated 16-bit timer. The MCU supports concurrent self- and mutual-capacitance sensing, metal-over-glass operation, and water rejection - all while maintaining ultra-low-power states including LPM4.5 (16 nA typical).
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 |
| Memory | 15.5 KB FRAM (15 KB program + 512 B info), 4 KB SRAM, unified memory architecture |
| Capacitive Sensing | Up to 16 self-capacitance or 64 mutual-capacitance electrodes; hardware-accelerated scan engine |
| Power Consumption | LPM3.5 RTC mode: 730 nA (32.768 kHz crystal); LPM4.5 shutdown: 16 nA; wake-on-touch: <5 µA (4 sensors) |
| Analog Peripherals | 8-channel 10-bit SAR ADC, 200 ksps sample rate, internal 1.5-V reference, sample-and-hold |
| Communication Interfaces | Two eUSCI_A (UART/IrDA/SPI), one eUSCI_B (I²C/SPI), JTAG/Spy-Bi-Wire debug |
| Package & I/O | TSSOP-32 package; 19 GPIOs; 16 interrupt-capable pins (P1/P2) for wake-from-LPM |
Pinout & Package
TSSOP-32 (DA) package: 11 mm × 6.2 mm body, 0.65 mm pitch, exposed thermal pad not present, JEDEC standard footprint compatible with automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / Non-maskable interrupt / Spy-Bi-Wire data I/O | Multi-function pin for device reset, NMI assertion, and 2-wire debug communication |
| TEST/SBWTCK | Test / Spy-Bi-Wire clock | Enables low-pin-count debug interface; required for programming and emulation |
| P1.4/UCA0TXD/UCA0SIMO/TA1.2/TCK/A4/VREF+ | GPIO / UART TX / SPI MOSI / Timer_A1 CCR2 / JTAG TCK / ADC input | High-flexibility multiplexed pin supporting serial comms, timing, debugging, and analog reference |
| P1.5/UCA0RXD/UCA0SOMI/TA1.1/TMS/A5 | GPIO / UART RX / SPI MISO / Timer_A1 CCR1 / JTAG TMS / ADC input | Shared signal path enables compact HMI designs with minimal external components |
| P1.6/UCA0CLK/TA1CLK/TDI/TCLK/A6 | GPIO / UART/SPI clock / Timer_A1 clock source / JTAG TDI / ADC input | Supports synchronous serial protocols and precise timing control for CapTIvate synchronization |
| P1.7/UCA0STE/SMCLK/TDO/A7 | GPIO / SPI slave select / system clock output / JTAG TDO / ADC input | Enables master/slave SPI configuration and real-time clock monitoring during touch evaluation |
| DVCC / DVSS | Digital supply / ground | Main power pair requiring 4.7–10 µF bulk + 0.1 µF ceramic decoupling per TI layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| CapTIvate™ Hardware Engine | Dedicated peripheral enabling autonomous electrode scanning, spread-spectrum modulation, and real-time noise filtering without CPU intervention |
| FRAM Memory Architecture | 15.5 KB nonvolatile memory with 10¹⁵ write endurance, ECC protection, and unified code/data storage eliminating flash erase delays |
| Ultra-Low-Power Operation | 16 nA LPM4.5 shutdown current and 730 nA RTC mode enable battery-powered HMI operation for years without recharge |
| Robust Touch Performance | IEC‑61000-4-2 (15 kV ESD), -4-4 (4 kV EFT), and -4-6 (10 V RMS noise) compliance ensures reliability in industrial and consumer enclosures |
| Flexible Electrode Support | Simultaneous self- and mutual-capacitance sensing on same design allows hybrid sliders, proximity + button layouts, and metal-touch capability |
Applications
| Smart Lock Keypads | Garage Door Control Panels |
|---|---|
|
Use Scenario: Indoor/outdoor residential access panels exposed to moisture, dust, and temperature extremes. IC Role / Device Role / Timing Role: Primary capacitive touch controller managing up to 16 buttons with metal overlay and water rejection. Use Value: Enables reliable actuation through 3-mm glass or stainless steel enclosures while maintaining <5 µA standby current for coin-cell operation. |
Use Scenario: Wall-mounted HMI for motorized garage door openers with vandal-resistant front panel. IC Role / Device Role / Timing Role: Standalone touch MCU handling proximity wake-up, multi-button input, and local LED feedback control. Use Value: Integrates CapTIvate noise immunity and LPM3.5 RTC to support scheduled operations and tamper detection without external real-time clock IC. |
| White Goods Control Interfaces | Wireless Audio Remote Controls |
|
Use Scenario: Appliance control panels on refrigerators, dishwashers, and ovens requiring washdown resistance and glove operation. IC Role / Device Role / Timing Role: Main HMI processor executing touch firmware, driving status LEDs, and communicating via UART to main appliance MCU. Use Value: Delivers 64-mutual-capacitance support for high-resolution sliders and rotary wheels, plus built-in debouncing and environmental compensation. |
Use Scenario: Compact handheld remotes for speakers/headsets needing long battery life and responsive tactile feedback. IC Role / Device Role / Timing Role: Low-power touch sensor node with wake-on-touch, BLE interface handoff, and battery voltage monitoring. Use Value: Achieves >2-year coin-cell lifetime using LPM4.5 shutdown and hardware-accelerated CapTIvate scanning that wakes only on valid gesture. |
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) vs. TSSOP-32 (11 mm × 6.2 mm); identical FRAM/RAM/CapTIvate specs and pin function mapping | Better thermal performance and PCB space efficiency; requires reflow-compatible layout vs. TSSOP's wave-solder compatibility | Select IRHB for compact, thermally demanding designs; IDA preferred for manual prototyping or legacy TSSOP tooling. |
| MSP430FR2533IDA | Same TSSOP-32 package and CapTIvate engine, but only 2 KB RAM and 24 mutual-capacitance electrode limit (vs. 4 KB/64) | Suitable for simpler touch interfaces (e.g., 8-button keypads) where full slider/wheel functionality is unnecessary | Choose FR2533IDA when cost sensitivity outweighs need for advanced gesture support or large local buffer storage. |
Compared with MSP430FR2633IRHB, the MSP430FR2633IDAR offers identical functional capability in a through-hole-compatible TSSOP package ideal for mixed-technology boards; versus MSP430FR2533IDA, it delivers double RAM and 2.7× more mutual-capacitance channels - critical for high-fidelity sliders and multitouch wheel UIs.
Availability
MSP430FR2633IDAR is available at Aetrix Electronics and suitable for smart lock keypads, garage door control panels, and white goods HMI requiring stable component supply, long-term lifecycle assurance, and TI-authorized traceability.
Supply support for MSP430FR2633IDAR 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 emphasis on energy efficiency, reliability, and system integration.
The MSP430FR2633IDAR belongs to TI's ultra-low-power FRAM microcontroller product line, engineered specifically for robust, battery-efficient capacitive touch HMI in consumer, industrial, and appliance applications.
FAQ
What is the maximum number of mutual-capacitance electrodes supported by the MSP430FR2633IDAR?
The MSP430FR2633IDAR supports up to 64 mutual-capacitance electrodes, enabled by its dedicated CapTIvate hardware engine and flexible pin multiplexing. This capability is confirmed in the device comparison table and CapTIvate feature section of the SLAS942E datasheet. The MSP430FR2633IDAR achieves this using shared GPIO resources with configurable electrode drive/sense routing, allowing complex sliders and proximity arrays without external ICs.
Does the MSP430FR2633IDAR include an integrated real-time clock (RTC)?
Yes, the MSP430FR2633IDAR includes a 16-bit counter-only RTC module that operates in LPM3.5 mode with a 32.768-kHz crystal, consuming just 730 nA typical. This RTC is independent of the main CPU and continues counting during ultra-low-power sleep, enabling time-stamped events and scheduled wake-ups. The MSP430FR2633IDAR datasheet specifies this capability in Section 1.1 Features and Table 3-1 Device Comparison.
What development tools are officially supported for the MSP430FR2633IDAR?
Texas Instruments officially supports the CAPTIVATE-FR2633 development kit, MSP-CAPT-PGMR programmer, and MSP-TS430RGE24A target board for the MSP430FR2633IDAR. The CapTIvate Design Center GUI enables real-time tuning of touch parameters without code changes, and MSP430Ware provides ROM-based CapTIvate software libraries. These tools are documented in Sections 1.1 and 8.3 of the SLAS942E datasheet.
How does the MSP430FR2633IDAR achieve IEC 61000-4-2 compliance?
The MSP430FR2633IDAR achieves IEC 61000-4-2 compliance (15 kV air, 8 kV contact discharge) through integrated CapTIvate hardware features: built-in spread spectrum, automatic tuning, noise filtering, and debouncing algorithms. These reduce susceptibility to electrostatic discharge transients without requiring external RC networks. The SLAS942E datasheet confirms this in the CapTIvate reliability subsection and lists full IEC test compliance in Section 1.1.
What is the FRAM endurance specification for the MSP430FR2633IDAR?
The MSP430FR2633IDAR features ferroelectric RAM with 10¹⁵ write cycle endurance - orders of magnitude higher than flash or EEPROM - and includes built-in error correction code (ECC) for data integrity. This FRAM is used for both program code and data storage, enabling rapid logging and frequent updates without wear-out concerns. The value is explicitly stated in the "Low-power ferroelectric RAM (FRAM)" feature list of the SLAS942E datasheet.
MSP430FR2633IDAR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 32-TSSOP (0.240", 6.10mm Width)
- 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:
- 19
- 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:
MSP430FR2633IDAR FAQ
1.How can I place an order for MSP430FR2633IDAR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR2633IDAR 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 MSP430FR2633IDAR reliable?
The price and inventory of MSP430FR2633IDAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2633IDAR is usually 5 days.
3.What payment methods are accepted for MSP430FR2633IDAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR2633IDAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR2633IDAR?
MSP430FR2633IDAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR2633IDAR 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 MSP430FR2633IDAR?
For technical support, including MSP430FR2633IDAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2633IDAR requirements.
6.How does Aetrix verify that MSP430FR2633IDAR is sourced from the original manufacturer or authorized distributors?
All MSP430FR2633IDAR 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 MSP430FR2633IDAR meets industry standards.
7.What is the process for return or replacement of MSP430FR2633IDAR?
All MSP430FR2633IDAR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2633IDAR, 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 MSP430FR2633IDAR part is unused and in its original packaging.
Return procedure for MSP430FR2633IDAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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