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Texas Instruments MSP430FR5732IPWR
- Part No.:
- MSP430FR5732IPWR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 28-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430FR5732IPWR.pdf
- Description:
- IC MCU 16BIT 8KB FRAM 28TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,087
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Product details
Overview
MSP430FR5732IPWR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 8 KB FRAM nonvolatile memory, 1 KB RAM, 10-bit ADC with 12 external channels, 16-channel analog comparator, and dual eUSCI modules supporting UART, SPI, and I²C. It operates from 2 V to 3.6 V across –40°C to 85°C and targets battery-powered sensor nodes in industrial monitoring systems.
For engineers reviewing the MSP430FR5732IPWR datasheet, MSP430FR5732IPWR pinout, MSP430FR5732IPWR application, or MSP430FR5732IPWR equivalent, key selection criteria include FRAM endurance (10¹⁵ write cycles), RTC support in LPM3.5 (1.5 µA), active-mode current (81.4 µA/MHz), integrated LDO, and Spy-Bi-Wire debug interface compatibility.
Technical Context
The MSP430FR5732IPWR implements a 16-bit CPUXV2 core with hardware multiplier and three-channel DMA, enabling efficient signal processing in low-power states. Its clock system integrates DCO (up to 8 MHz), VLO, LFXT (32 kHz crystal), and HFXT for flexible timing control across seven low-power modes.
Analog subsystem includes ADC10_B with internal reference and sample-and-hold, plus Comp_D with programmable hysteresis and voltage reference generation - all directly accessible via 24-pin TSSOP package I/Os including P1.x, P2.x, PJ.x, and dedicated analog inputs A0–A5 and CD0–CD9.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with 32-bit hardware multiplier for deterministic math operations |
| Nonvolatile Memory | 8 KB FRAM with ECC, 10¹⁵ write endurance, 125 ns/word write speed, universal memory usage |
| RAM | 1 KB SRAM for fast data buffering and stack execution during active/LPM modes |
| ADC | 10-bit ADC10_B with 12 external + 2 internal channels, 200 ksps sampling at 100 µA |
| Comparator | 16-channel Comp_D with internal reference, programmable hysteresis, and 9 comparator inputs (CD0–CD9) |
| Low-Power Modes | LPM3.5 (RTC active): 1.5 µA; LPM4.5 (shutdown): 0.32 µA; Active mode: 81.4 µA/MHz |
| eUSCI Peripherals | eUSCI_A0/A1: UART/IrDA/SPI; eUSCI_B0: I²C/SPI; supports hardware bootloader (BSL) |
| Supply & Temp | 2.0 V–3.6 V operation; –40°C to +85°C industrial temperature range |
Pinout & Package
TSSOP-24 package (7.8 mm × 4.4 mm body, 0.65 mm pitch) with exposed thermal pad recommended for VSS connection. Pin functions validated per TI SLASE35C Rev. December 2017, Section 4.4 (PW package) and Table 4-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0.1/DMAE0/RTCCLK/A0*/CD0/VeREF- | Multi-function I/O | RTC calibration output, ADC input A0, comparator input CD0, DMA trigger source |
| P1.1/TA0.2/TA1CLK/CDOUT/A1*/CD1/VeREF+ | Multi-function I/O | ADC reference input VeREF+, comparator output, timer clock source |
| P1.4/TB0.1/UCA0STE/A4*/CD4 | Multi-function I/O | SPI slave transmit enable, ADC input A4, comparator input CD4 |
| P1.5/TB0.2/UCA0CLK/A5*/CD5 | Multi-function I/O | SPI master clock output/slave clock input, ADC input A5, comparator input CD5 |
| PJ.4/XIN & PJ.5/XOUT | Clock terminals | Connect 32-kHz crystal for RTC or low-frequency timing; require external load capacitors |
| RST/NMI/SBWTDIO | Debug & reset | Spy-Bi-Wire bidirectional data I/O for programming/debug; also serves as NMI and reset input |
| TEST/SBWTCK | Debug clock | Spy-Bi-Wire clock input; enables JTAG-compatible debugging without full 4-wire interface |
| DVCC / DVSS / AVCC / AVSS | Power domains | Digital supply (DVCC/DVSS) and analog supply (AVCC/AVSS) must be decoupled separately |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 8 KB unified memory enabling simultaneous code/data/storage with zero write latency and no erase cycles |
| Real-Time Clock (RTC) | Calendar mode with alarm, runs in LPM3.5 at 1.5 µA using 32-kHz crystal - ideal for time-stamped sensor logging |
| Integrated Power Management | Fully integrated LDO, supply voltage supervisor (SVS), and zero-power brownout detection ensure robust operation under battery droop |
| Hardware Bootloader (BSL) | UART-based BSL allows field firmware updates without external programmer - uses eUSCI_A0 pins |
| Ultra-Low-Power Analog | 10-bit ADC consumes only 100 µA at 200 ksps; comparator supports rail-to-rail inputs and hysteresis for noise-immune threshold detection |
| Flexible Debug Interface | Spy-Bi-Wire (2-pin) replaces JTAG, reducing PCB footprint and enabling in-system programming on space-constrained boards |
Applications
| Smart Meter Sensor Node | Wireless Industrial Transmitter |
|---|---|
Use Scenario: Battery-powered utility meter collecting voltage, current, and temperature data every 15 minutes. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, FRAM-based data logging, RTC-timed wake-up, and UART-based sub-GHz radio handshaking. Use Value: 1.5 µA RTC current extends 2-AA battery life beyond 10 years; FRAM eliminates wear-out concerns during frequent timestamped writes. | Use Scenario: Remote vibration/temperature transmitter in oil & gas pipeline monitoring with 2-year battery life requirement. IC Role / Device Role / Timing Role: Signal conditioner and protocol handler interfacing MEMS accelerometer and thermistor to LoRaWAN module via UART. Use Value: Integrated 10-bit ADC and comparator reduce external component count; LPM4.5 shutdown (0.32 µA) minimizes quiescent drain between measurements. |
| Asset Tracking Beacon | Building Automation Controller |
Use Scenario: Indoor BLE beacon tracking pallet location using RSSI and motion-triggered wake-up. IC Role / Device Role / Timing Role: Motion-detecting edge node using comparator-driven wake-up, FRAM event buffer, and SPI-controlled BLE SoC interface. Use Value: Comparator_D with programmable hysteresis enables reliable motion detection without MCU intervention; FRAM retains last known position during deep sleep. | Use Scenario: HVAC zone controller managing damper actuation, CO₂ sensing, and occupancy detection in commercial buildings. IC Role / Device Role / Timing Role: Central decision engine running PID loop, reading analog sensors (CO₂, temp, humidity), and driving digital outputs via GPIO. Use Value: Dual eUSCI modules allow concurrent I²C sensor reads and UART communication with building management system - no software arbitration needed. |
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 |
|---|---|---|---|
| MSP430FR5730IPWR | 4 KB FRAM, no ADC10_B (only 6 external channels), same 24-pin TSSOP package and core peripherals | Suitable for simpler sensor polling without high-resolution analog acquisition | Select when FRAM size and ADC channel count can be reduced to lower BOM cost |
| MSP430FR5734IPWR | 16 KB FRAM, full 12-channel ADC10_B, identical pinout and peripheral set | Required for extended data logging or multi-sensor fusion with larger code footprint | Choose when future firmware expansion or longer local history buffers are needed |
Compared with MSP430FR5730IPWR, the MSP430FR5732IPWR adds 4 KB FRAM and 6 extra ADC channels without changing layout; versus MSP430FR5734IPWR, it trades 8 KB FRAM capacity for tighter cost control while retaining identical analog performance and debug interface.
Availability
MSP430FR5732IPWR is available at Aetrix Electronics and suitable for smart metering, industrial telemetry, and building automation requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for MSP430FR5732IPWR 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 for industrial, automotive, and consumer markets.
The MSP430FR57xx family was designed specifically for ultra-low-power sensing and system management in energy-constrained environments such as smart grid infrastructure and wireless sensor networks.
FAQ
What is the maximum operating frequency of the MSP430FR5732IPWR?
The MSP430FR5732IPWR supports a maximum system clock frequency of 8 MHz via its factory-trimmed DCO oscillator. This frequency is fully operational across the entire specified voltage range (2.0 V to 3.6 V) and temperature range (–40°C to +85°C), enabling deterministic real-time response in time-critical sensor acquisition tasks.
Does the MSP430FR5732IPWR include hardware error correction for FRAM?
Yes, the MSP430FR5732IPWR integrates built-in Error Correction Coding (ECC) for its 8 KB FRAM. This hardware-level ECC detects and corrects single-bit errors transparently during read/write operations, ensuring data integrity without software overhead - critical for mission-critical logging in industrial deployments.
Can the MSP430FR5732IPWR operate from a single 3.3-V supply without external regulators?
Yes, the MSP430FR5732IPWR includes a fully integrated LDO regulator that accepts 2.0 V–3.6 V input and supplies stable core voltage (VCORE). No external regulator is required - simplifying power design and reducing bill-of-materials for compact, battery-operated devices using standard 3.3-V rails.
How many capture/compare registers does Timer_A support on the MSP430FR5732IPWR?
The MSP430FR5732IPWR features two Timer_A modules (TA0 and TA1), each with three capture/compare registers. This configuration supports up to six independent PWM outputs, input capture events, or interval timing functions - sufficient for motor control, LED dimming, or precise pulse measurement in sensor interfaces.
Is the MSP430FR5732IPWR compatible with the MSP-FET430U40A debugger?
Yes, the MSP430FR5732IPWR is fully supported by the MSP-FET430U40A development tool via Spy-Bi-Wire interface using the TEST/SBWTCK and RST/NMI/SBWTDIO pins. TI's Code Composer Studio IDE provides out-of-box debugging, flash programming, and real-time power profiling for this device.
MSP430FR5732IPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 28-TSSOP (0.173", 4.40mm Width)
- 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:
- 21
- 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:
MSP430FR5732IPWR FAQ
1.How can I place an order for MSP430FR5732IPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5732IPWR 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 MSP430FR5732IPWR reliable?
The price and inventory of MSP430FR5732IPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5732IPWR is usually 5 days.
3.What payment methods are accepted for MSP430FR5732IPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5732IPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5732IPWR?
MSP430FR5732IPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5732IPWR 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 MSP430FR5732IPWR?
For technical support, including MSP430FR5732IPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5732IPWR requirements.
6.How does Aetrix verify that MSP430FR5732IPWR is sourced from the original manufacturer or authorized distributors?
All MSP430FR5732IPWR 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 MSP430FR5732IPWR meets industry standards.
7.What is the process for return or replacement of MSP430FR5732IPWR?
All MSP430FR5732IPWR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5732IPWR, 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 MSP430FR5732IPWR part is unused and in its original packaging.
Return procedure for MSP430FR5732IPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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