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Texas Instruments MSP430FR2032IG48
- Part No.:
- MSP430FR2032IG48
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
MSP430FR2032IG48.pdf
- Description:
- IC MCU 16BIT 8.5KB FRAM 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:320
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Product details
Overview
MSP430FR2032IG48 from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 8KB+512B FRAM, 1KB RAM, 10-bit 200 ksps ADC with 8 input channels, dual eUSCI (UART/I²C/SPI), and two Timer_A3 modules with three capture/compare registers each - deployed in battery-powered smoke detectors and industrial sensor nodes requiring sub-µA standby current.
For engineers reviewing the MSP430FR2032IG48 datasheet, MSP430FR2032IG48 pinout, MSP430FR2032IG48 application, or MSP430FR2032IG48 equivalent, this page delivers verified functional specifications, TSSOP-48 package mapping, real-time clock operation in LPM3.5, capacitive touch I/O capability across all pins, and validated alternative part selection guidance for low-power embedded designs.
Technical Context
The MSP430FR2032IG48 integrates a 16-MHz DCO with FLL-based frequency locking, ±1% accuracy at room temperature, and supports multiple clock domains: MCLK (CPU), SMCLK (peripherals), ACLK (RTC), and MODCLK (IR modulation). Its power management includes five low-power modes, with LPM3.5 delivering 0.77 µA RTC operation using a 32.768-kHz crystal and 0.4 µA with VLO.
FRAM memory architecture provides unified nonvolatile storage (8KB program + 512B info) with built-in ECC, 10¹⁵ write endurance, and radiation resistance. All 44 I/Os on the TSSOP-48 package support capacitive touch sensing, and P1/P2 pins provide wake-up capability from deep sleep via interrupt.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 16-bit RISC, up to 16 MHz - enables deterministic real-time control with <10 µs wake-up from LPM |
| Memory | 8KB program FRAM + 512B info FRAM + 1KB RAM - unified nonvolatile memory eliminates boot delay and flash wear concerns |
| ADC | 10-bit SAR, 8-channel, 200 ksps - supports simultaneous sampling of temperature, voltage, and analog sensor inputs |
| Low-Power Modes | LPM3.5: 0.77 µA (RTC + 32.768-kHz crystal); LPM4.5: 15 nA - extends coin-cell battery life to >10 years in periodic wake-up applications |
| Communication | eUSCI_A0 (UART/IrDA/SPI) + eUSCI_B0 (SPI/I²C) - enables dual-interface connectivity to sensors, displays, and host controllers |
| Timers | Two Timer_A3 modules, each with 3 capture/compare registers - supports PWM generation, input capture, and RTC counter functions |
| Package | TSSOP-48 (12.5 mm × 6.1 mm) - surface-mount footprint compatible with automated PCB assembly and space-constrained enclosures |
Pinout & Package
TSSOP-48 package with 44 usable I/O terminals, 2 power pins (DVCC/DVSS), 2 debug pins (RST/NMI/SBWTDIO, TEST/SBWTCK), and dedicated crystal terminals (XIN/XOUT). All I/Os support capacitive touch sensing and interrupt wake-up from LPM3.5.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / NMI input / SBW data I/O | Triple-function pin enabling system reset, nonmaskable interrupt, and Spy-Bi-Wire programming/debug without external interface hardware |
| TEST/SBWTCK | SBW clock input | Enables single-wire debug and firmware update using TI's MSP-FET or LaunchPad tools |
| XIN / XOUT | Crystal oscillator input/output | Supports 32.768-kHz crystal for precision RTC operation in LPM3.5 mode |
| P1.0–P1.7 | Analog/digital I/O with ADC/AUX functions | 8-pin group supporting ADC inputs A0–A7, UART (UCA0TXD/RXD), and JTAG test signals (TDO/TDI/TMS/TCK) |
| P4.0–P4.7 | General-purpose I/O with timer/oscillator functions | Includes TA1.1, TA1.2, TA1CLK, ACLK, SMCLK, and crystal connections - critical for timing-critical peripheral coordination |
| P5.0–P5.3 | eUSCI_B0 I²C/SPI interface | Provides I²C (SCL/SDA) and SPI (STE/CLK/SOMI/SIMO) for connecting to environmental sensors and EEPROMs |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 8KB program + 512B info memory with ECC, 10¹⁵ write cycles, and zero write latency - eliminates erase-before-write delays and flash endurance limits |
| Capacitive Touch I/O | All 44 GPIOs support CTSense - enables direct integration of touch buttons, sliders, or proximity detection without external ICs |
| Ultra-Low-Power RTC | 0.77 µA in LPM3.5 with 32.768-kHz crystal - maintains accurate timekeeping during multi-year battery operation in fire/smoke detectors |
| Dual eUSCI Peripherals | eUSCI_A0 (UART/IrDA/SPI) + eUSCI_B0 (I²C/SPI) - allows concurrent communication with UART-based host and I²C sensors |
| Interrupt-Capable I/O | P1 and P2 pins support edge-triggered interrupts - enables immediate wake-up from LPM3.5/LPM4.5 on external event (e.g., smoke alarm trigger) |
Applications
| Smoke Detection System | Industrial Sensor Node |
|---|---|
|
Use Scenario: Standalone battery-powered smoke detector with acoustic alarm and LED status indication. IC Role / Device Role / Timing Role: Primary controller executing smoke algorithm, driving buzzer/LED, and managing RTC-based self-test intervals. Use Value: LPM4.5 current of 15 nA extends CR2032 battery life beyond 10 years; FRAM enables reliable firmware updates and event logging without wear-out risk. |
Use Scenario: Wireless temperature/humidity node in factory HVAC monitoring, transmitting data via UART to gateway. IC Role / Device Role / Timing Role: Sensor aggregator with ADC sampling, CRC-16 checksum generation, and UART packet framing. Use Value: 200 ksps ADC captures transient thermal events; dual eUSCI permits simultaneous sensor readout and host communication. |
| Capacitive Touch HMI | Low-Power System Supervisor |
|
Use Scenario: Touch-enabled thermostat front panel with ambient light sensing and display backlight control. IC Role / Device Role / Timing Role: Capacitive touch processor with integrated ADC for light sensing and PWM output for dimming control. Use Value: All 44 GPIOs support CTSense - enables multi-button/slider interface without external touch controller; FRAM stores calibration data across power cycles. |
Use Scenario: Power management supervisor in medical equipment, monitoring supply rails and triggering shutdown on brownout. IC Role / Device Role / Timing Role: Independent coprocessor monitoring SVS thresholds, logging faults, and asserting system reset if needed. Use Value: Built-in SVS with programmable thresholds detects undervoltage conditions; 0.4 µA LPM3.5 with VLO allows continuous supervision without loading main MCU. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR2033IG48 | 15KB+512B FRAM, 2KB RAM, 10 ADC channels - higher memory and analog channel count | Better suited for applications requiring larger firmware or more sensor inputs (e.g., multi-zone fire panels) | Select when additional FRAM capacity or full 10-channel ADC is required; same TSSOP-48 pinout and software compatibility |
| MSP430FR2111IPW28 | 2KB+512B FRAM, 1KB RAM, 8-pin TSSOP - smaller memory and package, no RTC counter | Targeted at simpler, cost-sensitive applications like basic pushbutton controllers or single-sensor monitors | Choose for minimal BOM cost and board space where RTC and advanced peripherals are unnecessary |
Compared with MSP430FR2032IG48, MSP430FR2033IG48 offers scalable memory headroom while maintaining identical pinout and power profile, whereas MSP430FR2111IPW28 trades capability for size and cost - making the former a seamless upgrade path and the latter a budget-tier alternative.
Availability
MSP430FR2032IG48 is available at Aetrix Electronics and suitable for smoke detection systems, industrial sensor nodes, capacitive touch HMIs, and low-power system supervisors requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MSP430FR2032IG48 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 specializing in analog, embedded processing, and connectivity technologies, with over 90 years of innovation in energy-efficient electronics.
The MSP430FR203x product line targets ultra-low-power sensing and measurement applications - designed specifically for battery-operated devices demanding multi-year runtime, robust nonvolatile memory, and integrated analog peripherals.
FAQ
What is the maximum operating frequency of the MSP430FR2032IG48 CPU core?
The MSP430FR2032IG48 features a 16-bit RISC CPU with a digitally controlled oscillator (DCO) capable of running up to 16 MHz. This frequency is maintained with ±1% accuracy at room temperature using the on-chip FLL and reference oscillator, enabling deterministic real-time execution in time-critical embedded tasks.
How many I/O pins are available on the MSP430FR2032IG48 TSSOP-48 package?
The MSP430FR2032IG48 in TSSOP-48 provides 44 general-purpose I/O pins. These include all P1–P8 port pins assigned to the 48-pin footprint, with specific exclusions noted in Table 4-1 of the datasheet - all 44 support capacitive touch sensing and interrupt wake-up from low-power modes.
Does the MSP430FR2032IG48 support real-time clock functionality with battery backup?
Yes, the MSP430FR2032IG48 includes a dedicated 16-bit RTC counter that operates in LPM3.5 mode with a 32.768-kHz external crystal, drawing only 0.77 µA. While it does not integrate a separate VBAT rail, the RTC remains functional during main power loss if powered through DVCC with appropriate external backup circuitry.
What communication interfaces are integrated into the MSP430FR2032IG48?
The MSP430FR2032IG48 integrates two enhanced USCI modules: eUSCI_A0 supporting UART, IrDA, and SPI; and eUSCI_B0 supporting SPI and I²C. These enable flexible connectivity to sensors, displays, wireless transceivers, and host processors without external level shifters or protocol converters.
What is the FRAM endurance specification for the MSP430FR2032IG48?
The MSP430FR2032IG48 uses ferroelectric RAM with guaranteed 10¹⁵ write cycles per memory location - orders of magnitude higher than flash or EEPROM. This enables frequent data logging, configuration updates, and firmware patching without wear-out concerns across the device's operational lifetime.
MSP430FR2032IG48 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Series:
- MSP430™ FRAM
- Packaging:
- Tube
- 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:
- 44
- Program Memory Size:
- 8.5KB (8.5K x 8)
- Program Memory Type:
- FRAM
- EEPROM Size:
- -
- RAM Size:
- 1K 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:
MSP430FR2032IG48 FAQ
1.How can I place an order for MSP430FR2032IG48 through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR2032IG48 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 MSP430FR2032IG48 reliable?
The price and inventory of MSP430FR2032IG48 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2032IG48 is usually 5 days.
3.What payment methods are accepted for MSP430FR2032IG48?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR2032IG48 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR2032IG48?
MSP430FR2032IG48 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR2032IG48 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 MSP430FR2032IG48?
For technical support, including MSP430FR2032IG48 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2032IG48 requirements.
6.How does Aetrix verify that MSP430FR2032IG48 is sourced from the original manufacturer or authorized distributors?
All MSP430FR2032IG48 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 MSP430FR2032IG48 meets industry standards.
7.What is the process for return or replacement of MSP430FR2032IG48?
All MSP430FR2032IG48 units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2032IG48, 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 MSP430FR2032IG48 part is unused and in its original packaging.
Return procedure for MSP430FR2032IG48:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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