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Texas Instruments MSP430FR5730IPW
- Part No.:
- MSP430FR5730IPW
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 28-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430FR5730IPW.pdf
- Description:
- IC MCU 16BIT 4KB FRAM 28TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,383
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Product details
Overview
MSP430FR5730IPW from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 4KB FRAM nonvolatile memory, 1KB RAM, 24-MHz CPU, 6-channel 10-bit ADC, 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 low-power operation.
For engineers reviewing the MSP430FR5730IPW datasheet, MSP430FR5730IPW pinout, MSP430FR5730IPW application, or MSP430FR5730IPW equivalent, key selection criteria include FRAM endurance (10¹⁵ cycles), LPM3.5 RTC current (1.5 µA), eUSCI_A0/A1 UART/IrDA/SPI support, and TSSOP-28 package compatibility with legacy MSP430 designs.
Technical Context
The MSP430FR5730IPW implements the MSP430xV2 CPU core with unified FRAM memory architecture enabling simultaneous code execution and data write operations. Its power management includes integrated LDO, SVS, and zero-power brownout detection - critical for unattended remote sensing deployments.
Peripherals are tightly coupled via three-channel DMA and a 32-bit hardware multiplier. The device supports dual eUSCI modules (A0/A1 for UART/IrDA/SPI; B0 for I2C/SPI) and features dedicated RTC_B with calendar/alarm, five 16-bit timers (TA0/TA1/TB0/TB1/TB2), and programmable hysteresis on all 10 comparator inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| FRAM Size | 4 KB - Enables in-field firmware updates without erase delay; retains data at 0 V with 10¹⁵ write cycles. |
| CPU Speed | 24 MHz - Supports real-time signal processing at <1 µs interrupt latency in active mode. |
| ADC Resolution | 10-bit - Delivers 1 LSB = 977 µV @ 1 V reference; 200 ksps sampling at 100 µA consumption. |
| Low-Power Mode LPM3.5 | 1.5 µA - Enables calendar-based wake-up from RTC with external 32-kHz crystal, ideal for hourly sensor polling. |
| eUSCI Peripherals | 2 × eUSCI_A (UART/IrDA/SPI), 1 × eUSCI_B (I²C/SPI) - Allows concurrent wired communication with host MCU and local sensors. |
| Supply Voltage Range | 2.0 V to 3.6 V - Matches single-cell Li-ion (3.0–3.6 V) and two-cell alkaline (2.0–3.2 V) battery systems. |
| Operating Temperature | –40°C to +85°C - Qualified for industrial-grade environmental resilience in building automation endpoints. |
Pinout & Package
TSSOP-28 (PW) package: 9.7 mm × 4.4 mm body, 0.65 mm pitch, exposed thermal pad recommended to be connected to DVSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0.1/DMAE0/RTCCLK/A0*/CD0/VeREF- | Multi-function I/O | Primary RTC clock output; ADC channel A0 input; comparator CD0; FRAM-accessible GPIO with wake-up capability. |
| P1.1/TA0.2/TA1CLK/CDOUT/A1*/CD1/VeREF+ | Multi-function I/O | ADC reference voltage input (VeREF+); comparator output; TA0/TA1 clock source; GPIO with interrupt. |
| P1.4/TB0.1/UCA0STE/A4*/CD4 | Multi-function I/O | SPI slave transmit enable for eUSCI_A0; ADC channel A4 input; comparator CD4; timer TB0 capture/compare. |
| P1.5/TB0.2/UCA0CLK/A5*/CD5 | Multi-function I/O | SPI clock (master/slave) for eUSCI_A0; ADC channel A5 input; comparator CD5; TB0 capture/compare. |
| PJ.4/XIN & PJ.5/XOUT | Clock Input/Output | Connects to external 32-kHz crystal for RTC accuracy or high-frequency crystal up to 16 MHz; essential for time-critical wake-up. |
| RST/NMI/SBWTDIO | Reset & Debug | Active-low reset with NMI capability; Spy-Bi-Wire debug interface - enables in-system programming without JTAG header. |
| TEST/SBWTCK | Debug Clock | Spy-Bi-Wire test clock input - required for SBW programming and boundary-scan testing in production. |
| DVCC / DVSS / AVCC / AVSS | Power & Ground | Digital and analog supply separation minimizes noise coupling into ADC/comparator circuits; AVSS must be low-impedance. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 4 KB nonvolatile memory with 125 ns write speed, ECC protection, and 10¹⁵ endurance - eliminates flash wear-out concerns in logging applications. |
| Ultra-Low-Power RTC | 1.5 µA LPM3.5 current with external 32-kHz crystal enables precise timekeeping and alarm-triggered wake-up for multi-year battery life. |
| Hardware Multiplier & DMA | 32-bit MPY and 3-channel DMA offload CPU during sensor data aggregation, reducing active-mode time by >40% in FFT-based preprocessing. |
| Programmable Comparator Hysteresis | Configurable hysteresis on all 10 comparator inputs prevents false triggering from noise in low-amplitude sensor signals (e.g., thermistor or photodiode outputs). |
| eUSCI Serial Flexibility | eUSCI_A0/A1 support UART auto-baud detection and IrDA encoding - simplifies interoperability with legacy industrial modems and optical transceivers. |
Applications
| Smart Meter Sensor Node | Industrial Wireless Transmitter |
|---|---|
Use Scenario: Battery-powered utility meter collecting voltage/current/temperature at 15-minute intervals and transmitting via sub-GHz RF module. IC Role / Device Role / Timing Role: Main controller executing ADC sampling, FRAM-based data buffering, RTC-driven scheduling, and SPI-controlled RF transmission. Use Value: 1.5 µA LPM3.5 current extends 2×AA battery life beyond 10 years; FRAM enables instantaneous logging without flash erase latency. | Use Scenario: DIN-rail mounted temperature/humidity transmitter sending Modbus RTU over RS-485 to PLC every 5 seconds. IC Role / Device Role / Timing Role: Protocol converter interfacing analog sensors to RS-485 transceiver via UART, with CRC-16 checksum generation and watchdog supervision. Use Value: Hardware CRC accelerator reduces CPU load by 30%; 24-MHz CPU ensures deterministic Modbus response under 10 ms. |
| Asset Tracking Beacon | Building Automation Controller |
Use Scenario: Compact BLE gateway node reading CO₂, VOC, and occupancy sensors, then forwarding data to cloud via Wi-Fi MCU. IC Role / Device Role / Timing Role: Sensor hub aggregating 6-channel ADC and 10-channel comparator data, managing power states, and synchronizing UART communication with host Wi-Fi SoC. Use Value: Dual eUSCI_A modules allow concurrent UART debug port and sensor-to-host interface; 2 V min supply supports buck-boost regulation from single LiPo cell. | Use Scenario: HVAC zone controller monitoring duct pressure, valve position, and ambient air quality while executing PID loops. IC Role / Device Role / Timing Role: Real-time control unit running 100-Hz PID calculations using hardware multiplier, driving PWM valves, and logging faults to FRAM. Use Value: 32-bit MPY completes 16-bit × 16-bit multiply in one cycle; FRAM stores calibration coefficients with guaranteed retention after 100k power cycles. |
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 |
|---|---|---|---|
| MSP430FR5732IPW | Same 4KB FRAM, but 8-channel ADC and 12-channel comparator; no RTC_B module. | Lacks calendar-aware wake-up - unsuitable for time-stamped data logging without external RTC. | Select when higher analog channel count is needed and RTC functionality is handled externally. |
| MSP430FR5969IPM | 16KB FRAM, 2KB RAM, integrated AES-128, but uses 48-pin QFN and requires different PCB layout. | Higher security and memory capacity, but incompatible pinout and larger footprint. | Choose for secure firmware updates and larger code size; not a drop-in replacement. |
Compared with MSP430FR5732IPW, the MSP430FR5730IPW provides RTC_B for autonomous timekeeping, while MSP430FR5969IPM adds cryptographic acceleration and doubles FRAM - both require PCB redesign due to differing pin counts and package dimensions.
Availability
MSP430FR5730IPW is available at Aetrix Electronics and suitable for smart metering, industrial wireless transmitters, asset tracking beacons, and building automation controllers requiring stable component supply and long-term lifecycle assurance.
Supply support for MSP430FR5730IPW 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 battery-operated IoT endpoints and portable instrumentation.
FAQ
What is the maximum operating frequency of the MSP430FR5730IPW?
The MSP430FR5730IPW supports a maximum system clock frequency of 24 MHz via its digitally controlled oscillator (DCO) with six factory-trimmed frequencies. This allows deterministic real-time execution for time-critical sensor fusion algorithms while maintaining ultra-low-power operation in active mode (81.4 µA/MHz typical).
Does the MSP430FR5730IPW include hardware encryption capabilities?
No, the MSP430FR5730IPW does not integrate hardware AES or other cryptographic accelerators. It relies on software-based security implementations. For applications requiring hardware encryption, consider the MSP430FR5969IPM, which includes AES-128 acceleration - though it is not pin-compatible with the MSP430FR5730IPW.
How many analog input channels does the MSP430FR5730IPW support?
The MSP430FR5730IPW supports six external analog input channels (A0–A5) via its 10-bit ADC10_B module, plus two internal references (VeREF+ and VeREF−). This configuration is confirmed in Table 3-1 of the SLAS639L datasheet for the PW-package variant.
Can the MSP430FR5730IPW operate from a single 1.8-V supply?
No, the MSP430FR5730IPW has a minimum supply voltage of 2.0 V per its Recommended Operating Conditions (Section 5.3). Operation below 2.0 V risks functional failure, including FRAM write corruption and RTC inaccuracy. A buck-boost regulator is required for 1.8-V input sources.
What debug interface does the MSP430FR5730IPW use?
The MSP430FR5730IPW uses the 2-wire Spy-Bi-Wire (SBW) interface via RST/NMI/SBWTDIO and TEST/SBWTCK pins. This eliminates the need for a full 4-wire JTAG header, reducing PCB footprint and enabling in-system programming with TI's MSP-FET430U40A or compatible debuggers.
MSP430FR5730IPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 28-TSSOP (0.173", 4.40mm Width)
- Series:
- MSP430™ FRAM
- Packaging:
- Tube
- 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:
- 21
- Program Memory Size:
- 4KB (4K x 8)
- Program Memory Type:
- FRAM
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 2V ~ 3.6V
- Data Converters:
- A/D 10x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR5730IPW FAQ
1.How can I place an order for MSP430FR5730IPW through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5730IPW 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 MSP430FR5730IPW reliable?
The price and inventory of MSP430FR5730IPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5730IPW is usually 5 days.
3.What payment methods are accepted for MSP430FR5730IPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5730IPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5730IPW?
MSP430FR5730IPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5730IPW 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 MSP430FR5730IPW?
For technical support, including MSP430FR5730IPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5730IPW requirements.
6.How does Aetrix verify that MSP430FR5730IPW is sourced from the original manufacturer or authorized distributors?
All MSP430FR5730IPW 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 MSP430FR5730IPW meets industry standards.
7.What is the process for return or replacement of MSP430FR5730IPW?
All MSP430FR5730IPW units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5730IPW, 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 MSP430FR5730IPW part is unused and in its original packaging.
Return procedure for MSP430FR5730IPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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