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Texas Instruments MSP430FR5739IDA
- Part No.:
- MSP430FR5739IDA
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 38-TSSOP (0.240", 6.10mm Width)
- Datasheet:
-
MSP430FR5739IDA.pdf
- Description:
- IC MCU 16BIT 16KB FRAM 38TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,328
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Product details
Overview
MSP430FR5739IDA from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 16KB ferroelectric RAM (FRAM), 1KB SRAM, 24-MHz system clock, 12-channel 10-bit ADC, and dual eUSCI modules supporting UART/IrDA/SPI/I²C. It operates from 2 V to 3.6 V across –40°C to 85°C and targets battery-powered sensor nodes requiring nonvolatile memory endurance, real-time clock functionality, and low-active/low-standby current.
For engineers reviewing the MSP430FR5739IDA datasheet, MSP430FR5739IDA pinout, MSP430FR5739IDA application, or MSP430FR5739IDA equivalent, key selection criteria include FRAM write endurance (10¹⁵ cycles), RTC-with-calendar support in LPM3.5 (1.5 µA), integrated hardware multiplier, three-channel DMA, and TSSOP-38 package compatibility with legacy MSP430 footprint constraints.
Technical Context
The MSP430FR5739IDA implements the MSP430 CPUXV2 core with seven low-power modes, including LPM3.5 (RTC active with crystal) and LPM4.5 (shutdown at 0.32 µA). Its FRAM architecture replaces flash and EEPROM, enabling byte-level writes without erase cycles and eliminating wear leveling overhead.
Peripherals are tightly coupled to power management: the 10-bit ADC achieves 200 ksps at 100 µA; eUSCI_A0/A1 support automatic baud-rate detection and IrDA encoding; eUSCI_B0 supports multi-slave I²C addressing; and five 16-bit timers (three Timer_A, three Timer_B) provide flexible capture/compare and PWM generation with independent clock sources (ACLK, SMCLK, MCLK).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2, up to 24-MHz operation - enables deterministic real-time control with low code footprint |
| Nonvolatile Memory | 16KB FRAM with ECC and MPU - provides instant-write, radiation-resistant storage for firmware, logs, and calibration data |
| SRAM | 1KB on-chip SRAM - sufficient for stack, heap, and real-time variable buffering in sensor firmware |
| ADC | 12 external + 2 internal channel, 10-bit, 200 ksps - supports simultaneous temperature/humidity/pressure sampling with internal reference |
| Low-Power Modes | LPM3.5 (RTC + crystal): 1.5 µA; LPM4.5 (shutdown): 0.32 µA - extends coin-cell battery life to >10 years in periodic wake-up applications |
| Communication | eUSCI_A0/A1 (UART/IrDA/SPI); eUSCI_B0 (I²C/SPI) - enables dual-interface connectivity to sensors, displays, and host controllers without external transceivers |
| Timers | Five 16-bit timers: TA0/TA1 (3 CC each), TB0/TB1/TB2 (3 CC each) - supports multi-channel PWM, input capture for encoder counting, and RTC calendar functions |
Pinout & Package
The MSP430FR5739IDA is housed in a 38-pin TSSOP (DA) package measuring 12.5 mm × 6.2 mm, with exposed thermal pad recommended for connection to DVSS. Pin assignments are validated per TI SLAS639L Figure 4-2 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 channel A0 input, comparator CD0 input, and DMA trigger source - enables time-stamped sensor data acquisition |
| 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 - supports precision ratiometric measurements |
| P1.4/TB0.1/UCA0STE/A4*/CD4 | Multi-function I/O | Slave transmit enable for eUSCI_A0 SPI, ADC channel A4 input, comparator CD4 input - allows daisy-chain SPI peripheral control with analog monitoring |
| PJ.4/XIN & PJ.5/XOUT | Clock input/output | 32-kHz crystal connections for RTC accuracy - requires external LFXT oscillator circuit for calendar-grade timekeeping |
| RST/NMI/SBWTDIO | Reset/debug I/O | Unified reset, non-maskable interrupt, and Spy-Bi-Wire debug interface - enables single-wire in-system programming and debugging |
| TEST/SBWTCK | Debug clock | Spy-Bi-Wire test clock input - required for JTAG/SBW programming; must be pulled high during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| FRAM endurance | 10¹⁵ write cycles - eliminates flash wear-out concerns in data-logging applications updating every second for >31 years |
| Hardware CRC module | 16-bit cyclic redundancy checker - validates FRAM integrity after power loss or brownout without software overhead |
| Real-time clock (RTC) | Calendar mode with alarm and 32-kHz crystal support - delivers accurate timestamping and scheduled wake-up without external RTC IC |
| Integrated LDO | Fully integrated low-dropout regulator - simplifies power design by accepting 2–3.6 V input and delivering stable VCORE without external components |
| Zero-power brownout detection | Always-on SVS with hysteresis - ensures safe shutdown before supply collapse, preserving FRAM contents during battery depletion |
Applications
| Smart Meter Sensor Node | Wireless Building Thermostat |
|---|---|
Use Scenario: Battery-powered utility meter collecting voltage, current, and temperature at 1-second intervals for tamper detection and load profiling. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing FRAM-based event log, and driving RTC-triggered wake-up and RF transmission bursts. Use Value: 16KB FRAM stores 30 days of 1-second samples; LPM3.5 RTC draws only 1.5 µA; integrated ADC eliminates external signal conditioning. | Use Scenario: Zigbee-enabled HVAC thermostat operating on two AA batteries, polling ambient temperature/humidity every 30 seconds and adjusting setpoint via cloud API. IC Role / Device Role / Timing Role: System-on-chip managing sensor fusion, local PID control, secure OTA updates, and low-duty-cycle wireless communication scheduling. Use Value: Hardware multiplier accelerates floating-point calculations; eUSCI_B0 handles I²C sensor bus; FRAM retains configuration and calibration across battery swaps. |
| Industrial Asset Monitor | Portable Gas Detector |
Use Scenario: Handheld tool monitoring vibration, temperature, and humidity on rotating machinery, with Bluetooth LE reporting to maintenance tablets. IC Role / Device Role / Timing Role: Data acquisition hub with DMA-driven ADC sampling, FFT preprocessing via MPY32, and real-time alert generation using comparator thresholds. Use Value: Three-channel DMA offloads CPU during burst sampling; comparator_D triggers immediate wake-up on anomaly detection; 24-MHz clock enables fast FFT execution. | Use Scenario: Intrinsically safe portable detector logging CO, H₂S, and O₂ concentrations every 5 seconds, with audible/visual alarms and 5-year battery life. IC Role / Device Role / Timing Role: Safety-critical controller performing gas sensor biasing, ADC conversion, fault checking, and alarm actuation with watchdog supervision. Use Value: Built-in SVS and BOR prevent undervoltage operation; FRAM stores calibration curves and alarm history; LPM4.5 shutdown draws just 0.32 µA between readings. |
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 |
|---|---|---|---|
| MSP430FR5969IPM | 256KB FRAM, 8KB RAM, integrated AES-128, higher pin count (64-QFN), no eUSCI_B0 I²C master | Targets secure IoT edge nodes requiring encryption and larger firmware; lacks native I²C master for sensor hubs | Select when cryptographic security and extended memory are prioritized over I²C sensor integration |
| MSP430F5529IPN | 128KB flash, 8KB RAM, USB PHY, no FRAM, higher active current (170 µA/MHz), no RTC-in-LPM3.5 | Suitable for USB-connected development tools or host-attached peripherals; not viable for long-life battery operation | Select only for USB-hosted applications where FRAM endurance and sub-µA RTC are unnecessary |
Compared with MSP430FR5969IPM and MSP430F5529IPN, the MSP430FR5739IDA uniquely balances FRAM capacity, ultra-low-power RTC operation, and dual-eUSCI flexibility in a compact TSSOP-38 package-making it optimal for cost-sensitive, long-life sensor endpoints where I²C sensor interfacing and calendar-grade timekeeping are essential.
Availability
MSP430FR5739IDA is available at Aetrix Electronics and suitable for smart metering, building automation, industrial condition monitoring, and portable safety instrumentation requiring stable component supply and long-term lifecycle assurance.
Supply support for MSP430FR5739IDA 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 digital signal technologies with over 90 years of innovation in power management and low-power systems.
The MSP430FR573x product line was designed specifically for ultra-low-power sensing and system management in energy-constrained environments such as battery-operated meters, wireless sensor networks, and portable medical devices.
FAQ
What is the maximum system clock frequency supported by the MSP430FR5739IDA?
The MSP430FR5739IDA supports a maximum system clock frequency of 24 MHz, achieved via its factory-trimmed DCO oscillator or external HFXT crystal. This speed enables real-time signal processing tasks such as FFT computation using the integrated 32-bit hardware multiplier while maintaining ultra-low-power operation in active mode (81.4 µA/MHz typical).
Does the MSP430FR5739IDA include a real-time clock with calendar functionality?
Yes, the MSP430FR5739IDA integrates an RTC_B module with full calendar support (year/month/day/hour/minute/second), alarm capability, and dedicated 32-kHz crystal inputs (PJ.4/XIN and PJ.5/XOUT). In LPM3.5 mode with crystal enabled, it consumes only 1.5 µA typical-making it ideal for time-stamped data logging in battery-powered applications.
How many analog input channels does the MSP430FR5739IDA ADC support?
The MSP430FR5739IDA features a 10-bit ADC10_B module with 12 external analog input channels (A0–A11) plus 2 internal channels (temperature sensor and VMID), totaling 14 configurable inputs. Channel mapping is fixed per pin assignment (e.g., P1.0 = A0, P1.1 = A1), and all channels share a common sample-and-hold circuit with programmable conversion timing.
What communication interfaces are available on the MSP430FR5739IDA?
The MSP430FR5739IDA provides three enhanced universal serial communication interfaces: eUSCI_A0 and eUSCI_A1 support UART, IrDA, and SPI; eUSCI_B0 supports I²C (with multi-slave addressing) and SPI. These interfaces operate independently, allowing concurrent UART debugging, SPI sensor reads, and I²C display control without resource contention.
Is the MSP430FR5739IDA pin-compatible with other devices in the MSP430FR573x family?
Yes, the MSP430FR5739IDA shares identical pinout and electrical characteristics with MSP430FR5731IDA, MSP430FR5733IDA, MSP430FR5735IDA, and MSP430FR5737IDA in the DA (TSSOP-38) package. This enables direct substitution within the same family for memory- or peripheral-scaling design iterations without PCB redesign.
MSP430FR5739IDA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 38-TSSOP (0.240", 6.10mm 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:
- 30
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FRAM
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 2V ~ 3.6V
- Data Converters:
- A/D 14x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR5739IDA FAQ
1.How can I place an order for MSP430FR5739IDA through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5739IDA 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 MSP430FR5739IDA reliable?
The price and inventory of MSP430FR5739IDA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5739IDA is usually 5 days.
3.What payment methods are accepted for MSP430FR5739IDA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5739IDA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5739IDA?
MSP430FR5739IDA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5739IDA 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 MSP430FR5739IDA?
For technical support, including MSP430FR5739IDA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5739IDA requirements.
6.How does Aetrix verify that MSP430FR5739IDA is sourced from the original manufacturer or authorized distributors?
All MSP430FR5739IDA 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 MSP430FR5739IDA meets industry standards.
7.What is the process for return or replacement of MSP430FR5739IDA?
All MSP430FR5739IDA units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5739IDA, 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 MSP430FR5739IDA part is unused and in its original packaging.
Return procedure for MSP430FR5739IDA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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