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Texas Instruments MSP430FR5732IRGER
- Part No.:
- MSP430FR5732IRGER
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR5732IRGER.pdf
- Description:
- IC MCU 16BIT 8KB FRAM 24VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,224
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Product details
Overview
MSP430FR5732IRGER from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 8KB FRAM nonvolatile memory, 1KB RAM, 24-MHz CPU, 10-bit ADC with 12 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-based data logging.
For engineers reviewing the MSP430FR5732IRGER datasheet, MSP430FR5732IRGER pinout, MSP430FR5732IRGER application, or MSP430FR5732IRGER 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-24 package compatibility with space-constrained industrial sensing designs.
Technical Context
The MSP430FR5732IRGER implements a 16-bit CPUXV2 core with hardware multiplier and three-channel DMA for efficient signal processing in low-power modes. Its FRAM architecture enables simultaneous read/write without erase cycles, supporting real-time data buffering during ADC sampling at 200 ksps.
Peripherals include dual eUSCI modules (eUSCI_A0 for UART/IrDA/SPI; eUSCI_A1 for UART/SPI; eUSCI_B0 for I²C/SPI), five 16-bit timers (TA0/TA1/TB0/TB1/TB2), and a 16-channel comparator with programmable hysteresis - all configurable via register-level control without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| FRAM Size | 8 KB nonvolatile memory enabling instant write, 1015 endurance, no erase latency |
| CPU Speed | Up to 24 MHz clock supports real-time control loops with sub-µs interrupt response |
| ADC Resolution | 10-bit SAR ADC with 12 external input channels and internal reference for sensor interfacing |
| Low-Power Mode LPM3.5 | 1.5 µA typical current with 32-kHz crystal RTC active - enables years of battery life in periodic wake-up systems |
| eUSCI Peripherals | eUSCI_A0/A1 (UART/IrDA/SPI) + eUSCI_B0 (I²C/SPI) provide flexible serial connectivity without external level shifters |
| Operating Voltage | 2.0 V to 3.6 V supply range compatible with single-cell Li-ion, coin cell, or regulated 3.3-V rails |
| Temperature Range | –40°C to +85°C industrial grade operation suitable for uncontrolled environmental deployments |
Pinout & Package
VQFN-24 (RGE) package with 4 mm × 4 mm body size and exposed thermal pad connected to DVSS. Pin count and I/O mapping optimized for compact sensor interface applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0.1/DMAE0/RTCCLK/A0*/CD0/VeREF- | Multi-function I/O | RTC calibration output, ADC channel A0 input, comparator CD0, and DMA trigger source |
| P1.1/TA0.2/TA1CLK/CDOUT/A1*/CD1/VeREF+ | Multi-function I/O | ADC reference input VeREF+, comparator output, TA0/TA1 clock source, and analog channel A1 |
| P1.3/TA1.2/UCB0STE/A3*/CD3 | Multi-function I/O | eUSCI_B0 SPI slave transmit enable, ADC channel A3, and comparator CD3 input |
| P1.4/TB0.1/UCA0STE/A4*/CD4 | Multi-function I/O | eUSCI_A0 SPI slave transmit enable, ADC channel A4, and comparator CD4 input |
| P1.5/TB0.2/UCA0CLK/A5*/CD5 | Multi-function I/O | eUSCI_A0 SPI clock (master/slave), ADC channel A5, and comparator CD5 input |
| PJ.0/TDO/TB0OUTH/SMCLK/CD6 | Multi-function I/O | JTAG test data output, TB0 PWM high-impedance control, SMCLK output, and comparator CD6 |
| RST/NMI/SBWTDIO | Reset & debug | Reset input, non-maskable interrupt, and Spy-Bi-Wire bidirectional debug I/O |
| TEST/SBWTCK | Debug interface | Spy-Bi-Wire clock input for programming and debugging without JTAG header |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 8 KB unified memory for code, data, and storage with 125 ns word write time and zero write energy penalty |
| Real-Time Clock (RTC) | Calendar mode with alarm and 1.5 µA LPM3.5 current enables precise timestamping in battery-critical applications |
| Ultra-Low-Power Modes | Active mode at 81.4 µA/MHz; LPM3 standby at 6.3 µA; LPM4.5 shutdown at 0.32 µA |
| Hardware CRC Engine | 16-bit cyclic redundancy checker accelerates firmware integrity checks and data packet validation |
| Memory Protection Unit (MPU) | Configurable region-based access control prevents accidental FRAM overwrite during runtime |
Applications
| Smart Meter Sensor Node | Industrial Temperature Monitor |
|---|---|
Use Scenario: Battery-powered utility meter collecting voltage, current, and power factor at 1-second intervals over 10-year deployment. IC Role / Device Role / Timing Role: MSP430FR5732IRGER acts as primary system controller, executing ADC sampling, FRAM-based ring-buffer logging, and RTC-triggered BLE transmission bursts. Use Value: 8 KB FRAM stores 30+ days of timestamped sensor data without wear-out; 1.5 µA RTC current extends coin-cell life beyond 12 years. | Use Scenario: DIN-rail mounted temperature logger in HVAC control panels measuring ambient and duct temperatures every 5 minutes. IC Role / Device Role / Timing Role: MSP430FR5732IRGER interfaces dual thermistors via ADC, maintains calibration tables in FRAM, and wakes every 5 min using RTC alarm to log and transmit data. Use Value: Built-in 10-bit ADC with internal reference eliminates external precision references; FRAM retains calibration coefficients across 100k+ power cycles. |
| Wireless Smoke Detector | Portable Gas Analyzer |
Use Scenario: UL-certified smoke detector with photoelectric sensor, CO detection, and mesh-network reporting powered by CR123A battery. IC Role / Device Role / Timing Role: MSP430FR5732IRGER performs analog front-end conditioning, analog comparator threshold detection, and low-duty-cycle RF wake-up coordination. Use Value: 10-channel comparator with programmable hysteresis enables adaptive smoke/CO thresholding; 0.32 µA LPM4.5 shutdown minimizes quiescent drain between sensor reads. | Use Scenario: Handheld gas analyzer using electrochemical sensors requiring precise bias control and low-noise signal acquisition. IC Role / Device Role / Timing Role: MSP430FR5732IRGER controls sensor bias voltages via DAC-like GPIO, digitizes sensor outputs at 200 ksps, and stores raw waveforms in FRAM before USB upload. Use Value: 200 ksps ADC at 100 µA enables high-fidelity transient capture; FRAM's write endurance supports >10M waveform saves without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR5734IRGER | 16 KB FRAM, 12-channel ADC, 16-channel comparator - higher memory and analog channel count | Required when >8 KB FRAM or >10 ADC channels needed for multi-sensor fusion | Select MSP430FR5734IRGER if future firmware expansion or additional analog inputs are anticipated |
| MSP430FR5969IPM | 64 KB FRAM, 16-bit Sigma-Delta ADC, integrated LCD driver, 64-pin LQFP - larger package and enhanced peripherals | Targeted at display-enabled portable instruments with higher precision measurement needs | Choose MSP430FR5969IPM only when Sigma-Delta ADC resolution or LCD interface is mandatory |
Compared with MSP430FR5734IRGER and MSP430FR5969IPM, the MSP430FR5732IRGER delivers optimal cost/power balance for compact, single-sensor edge nodes where 8 KB FRAM and 10-channel analog capability meet functional requirements without over-provisioning.
Availability
MSP430FR5732IRGER is available at Aetrix Electronics and suitable for smart metering, industrial monitoring, wireless safety devices, and portable instrumentation requiring stable component supply and long-term manufacturability.
Supply support for MSP430FR5732IRGER 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 markets.
The MSP430FR573x product line was designed for ultra-low-power sensing and system management in building automation, smart grid infrastructure, and industrial IoT endpoints where FRAM reliability and sub-µA RTC operation are critical.
FAQ
What is the maximum operating frequency of the MSP430FR5732IRGER?
The MSP430FR5732IRGER supports a maximum system clock frequency of 24 MHz, achieved via its factory-trimmed DCO oscillator or external HFXT crystal. This speed enables deterministic real-time control in sensor fusion and communication protocols while maintaining ultra-low active-mode current of 81.4 µA/MHz. The MSP430FR5732IRGER's clock system includes VLO, LFXT, and HFXT sources for flexible trade-offs between accuracy and power.
Does the MSP430FR5732IRGER include hardware encryption or secure boot features?
No, the MSP430FR5732IRGER does not integrate hardware cryptographic accelerators, secure boot ROM, or tamper-detection circuitry. Its security model relies on software-managed MPU regions and bootloader (BSL) password protection. For applications requiring AES-128, SHA-256, or secure key storage, designers should consider TI's MSP430FR59xx or MSP432P4xx families. The MSP430FR5732IRGER prioritizes ultra-low power and FRAM endurance over cryptographic functionality.
How many ADC input channels does the MSP430FR5732IRGER support?
The MSP430FR5732IRGER integrates a 10-bit ADC (ADC10_B) with 12 external analog input channels (A0–A11) and 2 internal references (VeREF+ and VeREF−). Channel mapping is fixed per pin assignment (e.g., P1.0 = A0, P1.1 = A1), and all 12 external channels are accessible in the RGE-24 package. Internal temperature sensor and VMID are also available as ADC inputs per the device's electrical specifications.
What debug interface does the MSP430FR5732IRGER use?
The MSP430FR5732IRGER uses the two-wire Spy-Bi-Wire (SBW) interface via RST/NMI/SBWTDIO and TEST/SBWTCK pins for programming and debugging. It does not support full 4-wire JTAG. SBW enables in-system debug with minimal PCB footprint and is compatible with TI's MSP-FET and LaunchPad development tools. The MSP430FR5732IRGER's SBW implementation supports flash/FRAM programming, breakpoint setting, and real-time register inspection without requiring external debug probes.
Is the MSP430FR5732IRGER pin-compatible with other devices in the FR573x family?
Yes, the MSP430FR5732IRGER in the RGE-24 package shares identical pinout and function mapping with MSP430FR5730IRGER, MSP430FR5734IRGER, MSP430FR5736IRGER, and MSP430FR5738IRGER. All RGE-packaged FR573x variants maintain consistent signal assignments across pins 1–24, enabling direct substitution within the same FRAM/ADC/peripheral configuration tier. However, feature availability (e.g., ADC channels, comparator count) varies by part number and must be verified in software initialization.
MSP430FR5732IRGER Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 24-VFQFN Exposed Pad
- Series:
- MSP430™ FRAM
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
MSP430FR5732IRGER FAQ
1.How can I place an order for MSP430FR5732IRGER through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5732IRGER 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 MSP430FR5732IRGER reliable?
The price and inventory of MSP430FR5732IRGER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5732IRGER is usually 5 days.
3.What payment methods are accepted for MSP430FR5732IRGER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5732IRGER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5732IRGER?
MSP430FR5732IRGER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5732IRGER 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 MSP430FR5732IRGER?
For technical support, including MSP430FR5732IRGER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5732IRGER requirements.
6.How does Aetrix verify that MSP430FR5732IRGER is sourced from the original manufacturer or authorized distributors?
All MSP430FR5732IRGER 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 MSP430FR5732IRGER meets industry standards.
7.What is the process for return or replacement of MSP430FR5732IRGER?
All MSP430FR5732IRGER units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5732IRGER, 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 MSP430FR5732IRGER part is unused and in its original packaging.
Return procedure for MSP430FR5732IRGER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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