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Texas Instruments MSP430FR5732IRGET
- Part No.:
- MSP430FR5732IRGET
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR5732IRGET.pdf
- Description:
- IC MCU 16BIT 8KB FRAM 24VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:248
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Product details
Overview
MSP430FR5732IRGET from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 8KB FRAM nonvolatile memory, 1KB SRAM, 24-MHz system clock, 10-bit ADC with 6 external channels, and 10-channel analog comparator. It operates from 2 V to 3.6 V across –40°C to 85°C and targets battery-powered sensor nodes requiring fast FRAM writes and RTC-backed data logging.
For engineers reviewing the MSP430FR5732IRGET datasheet, MSP430FR5732IRGET pinout, MSP430FR5732IRGET application, or MSP430FR5732IRGET equivalent, key selection criteria include FRAM endurance (10¹⁵ write cycles), LPM3.5 RTC current (1.5 µA), eUSCI_A0/A1 UART/IrDA/SPI support, and RGE package compatibility with space-constrained PCB layouts.
Technical Context
The MSP430FR5732IRGET implements the MSP430xV2 CPU core with three-channel DMA, hardware multiplier (MPY32), and five 16-bit timers (three Timer_A and two Timer_B instances). Its FRAM memory subsystem includes built-in ECC and MPU for code/data integrity in safety-critical sensing applications.
It integrates dual eUSCI modules: eUSCI_A0 and eUSCI_A1 support UART with automatic baud-rate detection and IrDA encoding/decoding; eUSCI_B0 supports I²C with multi-slave addressing and SPI. The analog subsystem features a 10-bit ADC sampling at 200 ksps with internal reference and sample-and-hold, plus a 16-channel comparator with programmable hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU (MSP430xV2) with 24-MHz max clock - enables deterministic real-time control in low-power sensor firmware. |
| Nonvolatile Memory | 8KB FRAM - provides 10¹⁵ write endurance, 125-ns word write speed, and zero wait-state execution without flash erase cycles. |
| RAM | 1KB SRAM - sufficient for stack, buffers, and real-time variables during active mode or LPM3 operation. |
| ADC | 10-bit SAR ADC with 6 external + 2 internal channels, 200 ksps - supports high-speed analog acquisition in energy harvesting systems. |
| Comparator | 10-channel analog comparator with voltage reference and programmable hysteresis - enables precise threshold detection for wake-up and event triggering. |
| Low-Power Modes | LPM3.5 (RTC + crystal): 1.5 µA typical - sustains calendar timekeeping and periodic wake-up while preserving FRAM contents. |
| eUSCI Peripherals | eUSCI_A0/A1 (UART/IrDA/SPI); eUSCI_B0 (I²C/SPI) - delivers flexible serial connectivity for sensor fusion and wireless MCU interfacing. |
| Supply Range | 2.0 V to 3.6 V - compatible with single-cell Li-ion, Li-SOCl₂, and 2xAA alkaline battery configurations. |
Pinout & Package
Package: 24-pin VQFN (RGE), 4 mm × 4 mm body, exposed thermal pad (recommended connection to DVSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0.1/DMAE0/RTCCLK/A0*/CD0/VeREF- | Multi-function I/O | Primary RTC calibration output, ADC channel A0 input, comparator CD0 input, and DMA trigger source - critical for time-stamped sensor data capture. |
| P1.1/TA0.2/TA1CLK/CDOUT/A1*/CD1/VeREF+ | Multi-function I/O | ADC reference voltage input (VeREF+), comparator output (CDOUT), and timer clock source - enables precision analog measurement and synchronized timing. |
| P1.2/TA1.1/TA0CLK/CDOUT/A2*/CD2 | Multi-function I/O | Timer clock input and comparator output - supports cascaded timer operation and analog event flagging. |
| P1.3/TA1.2/UCB0STE/A3*/CD3 | Multi-function I/O | eUSCI_B0 SPI slave transmit enable and ADC channel A3 input - allows synchronous peripheral control with analog monitoring. |
| P1.4/TB0.1/UCA0STE/A4*/CD4 | Multi-function I/O | eUSCI_A0 SPI slave transmit enable and ADC channel A4 input - enables dual-role pin usage for compact interface design. |
| P1.5/TB0.2/UCA0CLK/A5*/CD5 | Multi-function I/O | eUSCI_A0 SPI clock (master/slave) and ADC channel A5 input - simplifies shared signal routing between analog and serial domains. |
| PJ.0/TDO/TB0OUTH/SMCLK/CD6 | Multi-function I/O | JTAG test data output, SMCLK output, and comparator CD6 input - supports debug visibility and system clock distribution. |
| PJ.1/TDI/TCLK/TB1OUTH/MCLK/CD7 | Multi-function I/O | JTAG test data/clock input and MCLK output - essential for in-circuit debugging and clock domain verification. |
| PJ.2/TMS/TB2OUTH/ACLK/CD8 | Multi-function I/O | JTAG test mode select and ACLK output - enables low-frequency clock monitoring and boundary scan control. |
| PJ.3/TCK/CD9 | Multi-function I/O | JTAG test clock and comparator CD9 input - provides synchronized test access and analog event capture. |
| RST/NMI/SBWTDIO | Reset/Debug I/O | Reset input, non-maskable interrupt, and Spy-Bi-Wire debug I/O - supports single-wire programming and robust fault recovery. |
| TEST/SBWTCK | Debug I/O | Spy-Bi-Wire test clock - enables low-pin-count debug interface for production programming and field diagnostics. |
| DVCC / DVSS | Power Supply | Digital core supply (DVCC) and ground (DVSS) - must be decoupled per TI layout guidelines to ensure stable FRAM operation. |
| AVCC / AVSS | Analog Supply | Analog reference supply (AVCC) and ground (AVSS) - isolated from digital rails to maintain ADC and comparator accuracy. |
| PJ.4/XIN / PJ.5/XOUT | Clock Input/Output | Crystal oscillator terminals for 32-kHz LFXT - required for low-power RTC operation in LPM3.5 mode. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 8KB nonvolatile memory with 10¹⁵ write endurance and 125 ns/word write speed - eliminates flash wear-out concerns in high-frequency data logging. |
| Ultra-Low-Power RTC | Real-time clock with calendar and alarm functions operating at 1.5 µA in LPM3.5 - enables years of battery life in time-stamped environmental monitors. |
| Hardware CRC Engine | 16-bit cyclic redundancy checker - accelerates firmware integrity checks and secure OTA update validation without CPU overhead. |
| Three-Channel DMA | Enables autonomous data movement between peripherals (ADC → FRAM, UART → RAM) - reduces active-mode CPU time and extends battery life. |
| Memory Protection Unit (MPU) | Configurable region-based protection for FRAM and SRAM - prevents accidental overwrites and enforces secure firmware partitioning. |
| Integrated LDO | Fully integrated low-dropout regulator - simplifies power design by eliminating external LDO components for single-supply operation. |
Applications
| Smart Meter Sensor Node | Industrial Wireless Sensor |
|---|---|
Use Scenario: Battery-powered utility meter collecting voltage, current, and temperature readings every 15 minutes. IC Role / Device Role / Timing Role: Main controller executing sensor polling, FRAM-based data buffering, RTC-timed transmission scheduling, and low-power sleep management. Use Value: 8KB FRAM stores >10,000 timestamped samples; LPM3.5 RTC draws only 1.5 µA, enabling 10+ year battery life on CR2032. | Use Scenario: Factory-floor vibration monitor transmitting FFT data via BLE gateway every hour. IC Role / Device Role / Timing Role: Signal acquisition controller running ADC-triggered DMA transfers, FRAM-based circular buffer, and eUSCI_A0 UART communication. Use Value: 200 ksps ADC captures transient events; 10¹⁵ FRAM write cycles support continuous logging over 20-year deployment. |
| Asset Tracking Beacon | Environmental Data Logger |
Use Scenario: GPS-denied indoor asset tag reporting location via RSSI triangulation and motion-triggered wake-up. IC Role / Device Role / Timing Role: Low-power state machine managing accelerometer wake-up, FRAM event logging, and eUSCI_B0 I²C communication with sensor hub. Use Value: Comparator_D detects motion thresholds with programmable hysteresis; 2 V–3.6 V operation supports coin-cell and energy-harvesting sources. | Use Scenario: Remote soil moisture and temperature logger deployed in agricultural fields for seasonal monitoring. IC Role / Device Role / Timing Role: Autonomous data acquisition unit using RTC alarms to initiate ADC sampling, FRAM storage, and periodic RF wakeup. Use Value: Built-in voltage reference and sample-and-hold ensure ±1 LSB ADC linearity across temperature; radiation-resistant FRAM prevents data corruption in outdoor exposure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power FRAM microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR5734IRGET | 8KB FRAM, 6-channel ADC, 10-channel comparator, same RGE package - differs only in Timer_B configuration (single instance vs. dual in FR5732). | Identical use cases; minor timer resource variation does not affect sensor node or data logger functionality. | Select when Timer_B channel count is not critical; otherwise functionally interchangeable. |
| MSP430FR5732IPW | Same 8KB FRAM, 1KB SRAM, and peripherals, but in 28-pin TSSOP (PW) package - larger footprint, more I/O pins (21 vs. 17), no PJ.x debug pins. | Better suited for prototyping or designs requiring additional GPIOs; less suitable for space-constrained PCBs. | Choose for development flexibility or higher I/O count; avoid for miniaturized end products. |
Compared with MSP430FR5732IRGET, the MSP430FR5734IRGET offers identical memory, power, and analog specs with minimal timer variation, while the MSP430FR5732IPW trades compact RGE packaging for expanded I/O in TSSOP - making the RGE variant optimal for volume production of size-sensitive sensor nodes.
Availability
MSP430FR5732IRGET is available at Aetrix Electronics and suitable for smart meter sensor nodes, industrial wireless sensors, asset tracking beacons, and environmental data loggers requiring stable component supply and long-term lifecycle support.
Supply support for MSP430FR5732IRGET 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 delivering analog and embedded processing solutions for industrial, automotive, and consumer applications.
The MSP430FR57xx family is designed for ultra-low-power sensing and system management in building automation, smart grid, and industrial IoT devices where FRAM endurance and sub-µA RTC operation are critical.
FAQ
What is the maximum system clock frequency supported by the MSP430FR5732IRGET?
The MSP430FR5732IRGET supports a maximum system clock frequency of 24 MHz, achieved via its factory-trimmed DCO oscillator or external HFXT crystal. This enables high-speed instruction execution for real-time sensor fusion algorithms while maintaining ultra-low-power operation in active mode (81.4 µA/MHz typical). The MSP430FR5732IRGET's clock system also includes VLO, LFXT, and HFXT sources for flexible low-power timing.
Does the MSP430FR5732IRGET include hardware error correction for its FRAM memory?
Yes, the MSP430FR5732IRGET integrates built-in Error Correction Coding (ECC) for its 8KB FRAM memory. This hardware ECC detects and corrects single-bit errors transparently during read/write operations, ensuring data integrity without software overhead. Combined with the Memory Protection Unit (MPU), this makes the MSP430FR5732IRGET suitable for mission-critical logging in industrial and utility applications where FRAM reliability is paramount.
How many analog input channels does the 10-bit ADC in the MSP430FR5732IRGET support?
The MSP430FR5732IRGET features a 10-bit ADC (ADC10_B) with 6 external analog input channels (A0–A5) and 2 internal channels (temperature sensor and VMID), totaling 8 usable inputs. This configuration is confirmed in the Device Comparison table and aligns with the RGE package pinout, where P1.0–P1.5 serve as A0–A5. The ADC achieves 200 ksps sampling at 100 µA, supporting high-resolution acquisition in battery-powered sensor nodes.
Can the MSP430FR5732IRGET operate from a single 2.0-V supply?
Yes, the MSP430FR5732IRGET operates across a wide supply range of 2.0 V to 3.6 V, fully specified down to 2.0 V. At 2.0 V, it maintains full functionality including 24-MHz DCO operation, FRAM read/write, ADC conversion, and real-time clock operation in LPM3.5 mode. This enables direct compatibility with primary lithium and energy-harvesting sources without external regulation, reducing bill-of-materials cost in ultra-low-power designs.
What debug interface does the MSP430FR5732IRGET support in the RGE package?
The MSP430FR5732IRGET in the RGE package supports the Spy-Bi-Wire (SBW) debug interface using pins RST/NMI/SBWTDIO (Pin 1) and TEST/SBWTCK (Pin 2). This two-wire interface enables full JTAG-equivalent programming, debugging, and boundary scan without requiring dedicated JTAG pins - conserving valuable I/O in the compact 24-pin VQFN layout. SBW is fully supported by Code Composer Studio and MSP-FET tools.
MSP430FR5732IRGET Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 24-VFQFN Exposed Pad
- Series:
- MSP430™ FRAM
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPUXV2
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- I2C, IrDA, LINbus, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 17
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FRAM
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 2V ~ 3.6V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR5732IRGET FAQ
1.How can I place an order for MSP430FR5732IRGET through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5732IRGET 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 MSP430FR5732IRGET reliable?
The price and inventory of MSP430FR5732IRGET are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5732IRGET is usually 5 days.
3.What payment methods are accepted for MSP430FR5732IRGET?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5732IRGET transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5732IRGET?
MSP430FR5732IRGET orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5732IRGET 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 MSP430FR5732IRGET?
For technical support, including MSP430FR5732IRGET datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5732IRGET requirements.
6.How does Aetrix verify that MSP430FR5732IRGET is sourced from the original manufacturer or authorized distributors?
All MSP430FR5732IRGET 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 MSP430FR5732IRGET meets industry standards.
7.What is the process for return or replacement of MSP430FR5732IRGET?
All MSP430FR5732IRGET units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5732IRGET, 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 MSP430FR5732IRGET part is unused and in its original packaging.
Return procedure for MSP430FR5732IRGET:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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