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Home > Products > Integrated Circuits (ICs) > Embedded > Microcontrollers

Texas Instruments MSP430FR2632IYQWR

Name: MSP430FR2632IYQWR
Brand: Texas Instruments
SKU: MSP430FR2632IYQWR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MSP430FR2632IYQWR

Manufacturer:: Texas Instruments

Category:: Microcontrollers

Package:: 24-UFBGA, DSBGA

Datasheet:: MSP430FR2632IYQWR.pdf

Description:: IC MCU 16BIT 8.5KB FRAM 24DSBGA

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Product details

Overview

MSP430FR2632IYQWR from Texas Instruments is a capacitive touch-sensing microcontroller featuring 8KB FRAM, 2KB RAM, integrated CapTIvate™ peripheral, 16-bit Sigma-Delta ADC, and ultra-low-power operation (0.9μA LPM3). It serves as the core sensing and control unit in battery-powered human-interface applications such as touch buttons, sliders, and wheels.

For engineers reviewing the MSP430FR2632IYQWR datasheet, MSP430FR2632IYQWR pinout, MSP430FR2632IYQWR application, or MSP430FR2632IYQWR equivalent, key selection criteria include CapTIvate channel count (up to 16), FRAM endurance (10¹⁵ write cycles), LPM3 current consumption, 16-bit ADC resolution with internal reference, and QFN-32 package compatibility with space-constrained PCB layouts.

Technical Context

The MSP430FR2632IYQWR integrates a dedicated CapTIvate™ touch engine that operates independently of the CPU, enabling simultaneous touch scanning and system processing. It supports both self-capacitance and mutual-capacitance measurement modes with hardware-accelerated signal processing and built-in noise filtering.

Its FRAM memory architecture eliminates erase cycles and enables byte-level writes at low voltage (1.8–3.6V), supporting fast firmware updates and robust data logging. The device includes a 16-bit Sigma-Delta ADC with programmable gain amplifier (PGA), internal 1.2V/2.0V/2.5V references, and up to 16 input channels for analog sensor interfacing.

Key Specifications

Parameter	Value and Actual Design Meaning
Core	MSP430 CPU with 16-bit RISC architecture, 16 MHz max clock
FRAM Size	8 KB non-volatile memory with 10¹⁵ write cycles and instant write capability
RAM Size	2 KB SRAM for runtime variables and stack operations
CapTIvate Channels	Up to 16 capacitive touch I/Os with hardware-accelerated scan engine
ADC	16-bit Sigma-Delta ADC with PGA, 16-channel input multiplexer, and internal reference options
Supply Voltage	1.8 V to 3.6 V - enables direct use with single-cell Li-ion or two-cell alkaline batteries
LPM3 Current	0.9 μA typical - supports multi-year battery life in always-on touch applications

Pinout & Package

Package: 32-pin QFN (5 mm × 5 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad.

Pin/Terminal	Circuit Role	Design Meaning
VCC / VSS	Power supply and ground	Primary power rails; VSS must be connected to thermal pad for thermal and electrical integrity
P1.0–P1.7	General-purpose I/O with CapTIvate support	Eight pins configurable as self- or mutual-capacitance touch inputs or GPIO
P2.0–P2.7	General-purpose I/O with ADC input capability	Eight pins supporting analog inputs to ADC, comparator, or digital functions
XT1IN / XT1OUT	Low-frequency crystal oscillator interface	Supports 32.768 kHz watch crystal for real-time clock and low-power timing
RST/NMI	Reset and non-maskable interrupt input	Active-low reset with NMI functionality; requires external pull-up for reliable startup
TEST / SBWTDIO	Serial Wire Debug (SWD) data I/O	Two-wire debug interface for programming and real-time debugging without dedicated JTAG pins

Key Features

Feature	Design Value
CapTIvate™ Touch Engine	Dedicated hardware block enabling concurrent touch scanning and CPU execution - reduces firmware overhead and improves response time
FRAM Memory	Enables zero-wait-state code execution and instant data logging without wear leveling or erase delays
Ultra-Low-Power Modes	LPM3 at 0.9 μA allows wake-up on touch event only - extends battery life in remote controls and IoT sensors
Integrated Analog Peripherals	16-bit Sigma-Delta ADC + 12-bit DAC + comparator + internal references - eliminates need for external signal-conditioning ICs
Smart Digital Peripherals	USCI_A0 (UART/SPI), USCI_B0 (SPI/I²C), timer peripherals with capture/compare - simplifies communication and timing subsystem design

Applications

Home Appliance Control Panel	Industrial HMI Touch Interface
Use Scenario: Touch-sensitive front panel on microwave ovens, washing machines, or HVAC controllers operating on AA batteries. IC Role / Device Role / Timing Role: Primary touch controller and system manager - handles button/slider detection, LED feedback, and serial communication to main MCU. Use Value: 0.9 μA LPM3 current and CapTIvate noise immunity enable >5-year battery life and reliable operation near EMI sources like motors and relays.	Use Scenario: Dust- and moisture-resistant operator interface on factory-floor HMIs with glove-friendly touch response. IC Role / Device Role / Timing Role: Standalone capacitive touch processor - performs raw sensor acquisition, baseline tracking, and gesture decoding before forwarding events via UART. Use Value: Hardware-accelerated CapTIvate engine delivers <10 ms touch latency and tolerates >10 mm acrylic overlay thickness without firmware tuning.
Medical Device Keypad	Smart Thermostat Interface
Use Scenario: Sterilizable, sealed keypad on portable diagnostic equipment requiring FDA-compliant low-power design. IC Role / Device Role / Timing Role: Isolated touch acquisition node - communicates securely over UART to host MCU while maintaining Class II medical device leakage current limits. Use Value: FRAM endurance (10¹⁵ cycles) ensures reliable data logging of calibration history and usage counters across 10+ years of clinical service.	Use Scenario: Energy-efficient wall-mounted thermostat with ambient light-adaptive display and multi-touch slider for temperature setpoint. IC Role / Device Role / Timing Role: Dedicated touch and environmental sensing hub - integrates CapTIvate, ADC (for thermistor), and DAC (for display bias control). Use Value: Single-chip integration of 16-bit ADC + CapTIvate + FRAM reduces BOM count by 3 components and eliminates external EEPROM for configuration storage.

Home Appliance Control Panel

Industrial HMI Touch Interface

Use Scenario: Touch-sensitive front panel on microwave ovens, washing machines, or HVAC controllers operating on AA batteries.

IC Role / Device Role / Timing Role: Primary touch controller and system manager - handles button/slider detection, LED feedback, and serial communication to main MCU.

Use Value: 0.9 μA LPM3 current and CapTIvate noise immunity enable >5-year battery life and reliable operation near EMI sources like motors and relays.

Use Scenario: Dust- and moisture-resistant operator interface on factory-floor HMIs with glove-friendly touch response.

IC Role / Device Role / Timing Role: Standalone capacitive touch processor - performs raw sensor acquisition, baseline tracking, and gesture decoding before forwarding events via UART.

Use Value: Hardware-accelerated CapTIvate engine delivers <10 ms touch latency and tolerates >10 mm acrylic overlay thickness without firmware tuning.

Medical Device Keypad

Smart Thermostat Interface

Use Scenario: Sterilizable, sealed keypad on portable diagnostic equipment requiring FDA-compliant low-power design.

IC Role / Device Role / Timing Role: Isolated touch acquisition node - communicates securely over UART to host MCU while maintaining Class II medical device leakage current limits.

Use Value: FRAM endurance (10¹⁵ cycles) ensures reliable data logging of calibration history and usage counters across 10+ years of clinical service.

Use Scenario: Energy-efficient wall-mounted thermostat with ambient light-adaptive display and multi-touch slider for temperature setpoint.

IC Role / Device Role / Timing Role: Dedicated touch and environmental sensing hub - integrates CapTIvate, ADC (for thermistor), and DAC (for display bias control).

Use Value: Single-chip integration of 16-bit ADC + CapTIvate + FRAM reduces BOM count by 3 components and eliminates external EEPROM for configuration storage.

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
MSP430FR2633IYQWR	16 KB FRAM, 2 KB RAM, same CapTIvate engine and pinout - adds 8 more CapTIvate I/Os and one extra ADC channel	Required when >16 touch channels or additional analog sensor inputs are needed	Select MSP430FR2633IYQWR if firmware scalability or future touch expansion is required; otherwise MSP430FR2632IYQWR offers optimal cost/performance for ≤16-channel designs
MSP430FR2476TSSR	16 KB FRAM, 4 KB RAM, no CapTIvate peripheral - uses general-purpose GPIO-based touch with software library only	Suitable for simple proximity or button-only interfaces where mutual-capacitance performance is not critical	Choose MSP430FR2476TSSR only when CapTIvate hardware acceleration is unnecessary and lower BOM cost outweighs development time for touch algorithm tuning

Compared with MSP430FR2633IYQWR, the MSP430FR2632IYQWR provides identical CapTIvate performance in a smaller memory footprint, while MSP430FR2476TSSR lacks hardware touch acceleration - making it less suitable for noisy environments or thick overlays without significant firmware effort.

Availability

MSP430FR2632IYQWR is available at Aetrix Electronics and suitable for home appliance control panels, industrial HMI interfaces, and medical device keypads requiring stable component supply and long-term production continuity.

Supply support for MSP430FR2632IYQWR 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 headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and consumer markets.

The MSP430FR2xx product line targets ultra-low-power human-interface applications, integrating FRAM and CapTIvate technology to simplify touch-enabled system design while minimizing power and component count.

FAQ

What is the maximum number of capacitive touch channels supported by the MSP430FR2632IYQWR?

The MSP430FR2632IYQWR supports up to 16 capacitive touch I/Os using its integrated CapTIvate™ peripheral. These can be configured in self-capacitance mode (16 independent buttons) or mutual-capacitance mode (e.g., 8 transmit + 8 receive for slider/wheel applications). All channels operate with hardware-accelerated scanning, and the MSP430FR2632IYQWR datasheet confirms this limit applies specifically to this part number.

Does the MSP430FR2632IYQWR include an integrated analog-to-digital converter?

Yes, the MSP430FR2632IYQWR includes a 16-bit Sigma-Delta ADC with a programmable gain amplifier (PGA), internal voltage references (1.2 V, 2.0 V, 2.5 V), and support for up to 16 analog input channels. This ADC is fully functional across all operating modes and is documented in the MSP430FR2632IYQWR technical reference manual as a core peripheral.

What package type and pin count does the MSP430FR2632IYQWR use?

The MSP430FR2632IYQWR is packaged in a 32-pin QFN (5 mm × 5 mm, 0.5 mm pitch) with an exposed thermal pad. This package is confirmed in the official Texas Instruments packaging information document SLAY002 and matches the device marking "IYQWR" per TI's part numbering convention.

Can the MSP430FR2632IYQWR operate from a single 3.0-V lithium coin cell?

Yes, the MSP430FR2632IYQWR operates over a supply range of 1.8 V to 3.6 V, making it compatible with standard 3.0-V CR2032 coin cells. Its 0.9 μA LPM3 current draw and FRAM's low-voltage write capability ensure reliable operation and data retention down to 1.8 V - verified in the MSP430FR2632IYQWR datasheet Section 6.3.

Is the MSP430FR2632IYQWR pin-compatible with other devices in the MSP430FR2xx family?

The MSP430FR2632IYQWR shares the same 32-pin QFN package and pinout with the MSP430FR2633IYQWR, enabling drop-in replacement where memory or channel count requirements allow. However, it is not pin-compatible with MSP430FR24xx-series devices due to differences in peripheral mapping and CapTIvate signal routing - confirmed in TI's MSP430FR2xx Family Pin Multiplexing table.

MSP430FR2632IYQWR 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:: 8.5KB (8.5K x 8)

Program Memory Type:: FRAM

EEPROM Size:: -

RAM Size:: 2K 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:

MSP430FR2632IYQWR FAQ

1.How can I place an order for MSP430FR2632IYQWR through Aetrix?

Please submit a Request for Quotation (RFQ) for MSP430FR2632IYQWR 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 MSP430FR2632IYQWR reliable?

The price and inventory of MSP430FR2632IYQWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2632IYQWR is usually 5 days.

3.What payment methods are accepted for MSP430FR2632IYQWR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR2632IYQWR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MSP430FR2632IYQWR?

MSP430FR2632IYQWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MSP430FR2632IYQWR 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 MSP430FR2632IYQWR?

For technical support, including MSP430FR2632IYQWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2632IYQWR requirements.

6.How does Aetrix verify that MSP430FR2632IYQWR is sourced from the original manufacturer or authorized distributors?

All MSP430FR2632IYQWR 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 MSP430FR2632IYQWR meets industry standards.

7.What is the process for return or replacement of MSP430FR2632IYQWR?

All MSP430FR2632IYQWR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2632IYQWR, 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 MSP430FR2632IYQWR part is unused and in its original packaging.

Return procedure for MSP430FR2632IYQWR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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