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Texas Instruments MSP430FR5739CY
- Part No.:
- MSP430FR5739CY
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- Die
- Datasheet:
-
MSP430FR5739CY.pdf
- Description:
- IC MCU 16BIT 16KB FRAM DIESALE
- Quantity:
- Payment:
- Shipping:
Inventory:780
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Product details
Overview
MSP430FR5739CY 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 - deployed in battery-powered sensor nodes and energy-harvesting data loggers.
For engineers reviewing the MSP430FR5739CY datasheet, MSP430FR5739CY pinout, MSP430FR5739CY application, or MSP430FR5739CY equivalent, key selection criteria include FRAM endurance (10¹⁵ writes), RTC-with-calendar capability, LPM3.5 current (1.5 µA), 32 I/O pins in RHA package, and integrated hardware multiplier for real-time signal processing.
Technical Context
The MSP430FR5739CY implements the MSP430 CPUXV2 core with seven low-power modes, including LPM4.5 (0.32 µA shutdown) and RTC-enabled LPM3.5 (1.5 µA). Its FRAM memory replaces flash and EEPROM, enabling instant nonvolatile writes without erase cycles and eliminating write latency penalties.
Peripherals include five 16-bit timers (three Timer_A and three Timer_B instances), 16-channel analog comparator with programmable hysteresis, and dual eUSCI modules: eUSCI_A0/A1 support UART/IrDA/SPI, while eUSCI_B0 supports I²C and SPI - all configurable via register-level control without firmware overhead.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2, up to 24 MHz - enables deterministic real-time execution with 1-cycle instruction fetch |
| Nonvolatile Memory | 16 KB FRAM with ECC and MPU - provides true universal memory (code + data + storage) and 10¹⁵ write endurance |
| ADC | 12 external + 2 internal channel, 10-bit, 200 ksps at 100 µA - supports high-speed sensor sampling with low power budget |
| Low-Power Modes | LPM3.5 (RTC active, crystal): 1.5 µA typical - sustains calendar timekeeping and wake-up events during multi-year battery operation |
| eUSCI Peripherals | eUSCI_A0/A1 (UART/IrDA/SPI), eUSCI_B0 (I²C/SPI) - enables concurrent wired communication on multiple protocols without external transceivers |
| Supply Range | 2.0 V to 3.6 V - compatible with single-cell Li-ion, Li-SOCl₂, and alkaline battery systems |
| Operating Temperature | –40°C to +85°C - qualified for industrial and outdoor environmental monitoring deployments |
Pinout & Package
Package: 40-pin VQFN (RHA), 6 mm × 6 mm body size with 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 | RTC calibration output, ADC input A0, comparator input CD0, DMA trigger source - enables time-synchronized sensor capture |
| PJ.4/XIN & PJ.5/XOUT | Crystal oscillator terminals | Supports 32-kHz LFXT for RTC accuracy ±20 ppm or HFXT up to 16 MHz - critical for time-critical wake-up and timestamping |
| RST/NMI/SBWTDIO | Reset & debug interface | Single-wire JTAG (Spy-Bi-Wire) programming and debugging - eliminates need for 4-pin JTAG header in space-constrained designs |
| eUSCI_A0 TX/RX (P2.0/P2.1) | UART physical layer | Hardware UART with automatic baud-rate detection - simplifies interoperability with legacy modems and host controllers |
| eUSCI_B0 SCL/SDA (P1.6/P1.7) | I²C bus interface | Standard-mode (100 kbps) and fast-mode (400 kbps) I²C - connects directly to temperature, humidity, and motion sensors |
Key Features
| Feature | Design Value |
|---|---|
| FRAM memory architecture | Enables zero-latency writes and unlimited endurance - eliminates flash wear leveling and erase delays in logging applications |
| Hardware CRC module | Offloads checksum computation from CPU - ensures data integrity in FRAM-stored logs without runtime penalty |
| Integrated LDO regulator | Provides stable core voltage from wide input range - removes need for external DC-DC or LDO in single-supply systems |
| Real-time clock with calendar | Tracks date/time with alarm interrupt - supports scheduled wake-up, time-stamped sensor reads, and firmware update windows |
| Three-channel DMA controller | Transfers ADC samples or UART data directly to FRAM without CPU intervention - reduces active mode time by >40% in burst-read scenarios |
Applications
| Smart Meter Data Logger | Wireless Sensor Node |
|---|---|
Use Scenario: Continuous voltage/current measurement and hourly energy consumption logging in AMI smart meters. IC Role / Device Role / Timing Role: Primary MCU managing ADC sampling, FRAM-based circular buffer storage, RTC-triggered transmission, and secure BSL firmware updates. Use Value: 16KB FRAM stores 72+ hours of 10-bit sampled data; LPM3.5 (1.5 µA) extends battery life beyond 10 years with CR123A cells. |
Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and CO₂ every 5 minutes in HVAC ducts. IC Role / Device Role / Timing Role: System controller interfacing I²C sensors, executing low-power sleep/wake cycles, and transmitting via UART-to-LoRa bridge. Use Value: Hardware UART auto-baud detection simplifies integration with LoRa modules; 24-MHz DCO enables fast sensor readout before returning to LPM4.5 (0.32 µA). |
| Industrial Asset Tracker | Energy-Harvesting IoT Node |
Use Scenario: GPS-tracked equipment monitoring vibration, tilt, and tamper status in remote construction sites. IC Role / Device Role / Timing Role: Central processor acquiring analog/digital sensor inputs, timestamping events via RTC, and triggering cellular modem on alarm. Use Value: Comparator_D with programmable hysteresis detects mechanical shock events; built-in SVS prevents brownout-induced FRAM corruption during battery voltage sag. |
Use Scenario: Solar-powered soil moisture sensor using supercapacitor storage and duty-cycled operation. IC Role / Device Role / Timing Role: Power-aware controller managing solar charge management, ADC sampling only during peak irradiance, and FRAM buffering. Use Value: FRAM's ultra-low-power write (no erase) minimizes energy per sample; 2-V minimum supply allows operation down to near-dead battery states. |
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 |
|---|---|---|---|
| MSP430FR5735RHA | 8 KB FRAM, same 40-pin RHA package, identical peripherals except reduced ADC channels (12 ext/2 int → 12 ext/2 int, but no functional difference) | Lower memory footprint suits simpler sensor nodes without extended logging | Select when application requires ≤8 KB code+data storage and cost optimization is prioritized over future FRAM scalability |
| MSP430FR6989IPZ | 128 KB FRAM, 8 KB RAM, enhanced LCD controller, different 100-pin TQFP package - not pin-compatible | Targeted for display-driven HMI applications (e.g., building thermostats), not sensor-only nodes | Choose only if migrating to larger memory footprint and adding segment LCD; requires PCB redesign due to package and pinout mismatch |
Compared with MSP430FR5735RHA, the MSP430FR5739CY delivers double FRAM capacity for longer data retention and more complex firmware; versus MSP430FR6989IPZ, it offers identical ultra-low-power performance in a smaller, lower-cost package - ideal for compact, battery-limited sensor endpoints.
Availability
MSP430FR5739CY is available at Aetrix Electronics and suitable for smart metering, wireless sensor networks, industrial asset tracking, and energy-harvesting IoT devices requiring stable component supply across multi-year production cycles.
Supply support for MSP430FR5739CY 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 connectivity technologies, with decades of expertise in ultra-low-power design.
The MSP430FR573x family was engineered specifically for battery-operated sensing and telemetry applications where FRAM endurance, sub-µA RTC operation, and integrated analog peripherals reduce system component count and power budget.
FAQ
What is the maximum system clock frequency supported by the MSP430FR5739CY?
The MSP430FR5739CY 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 in sensor fusion algorithms while maintaining compatibility with TI's MSP430 toolchain and Code Composer Studio IDE for deterministic timing analysis.
Does the MSP430FR5739CY include hardware support for cryptographic operations?
No, the MSP430FR5739CY does not integrate dedicated cryptographic accelerators or hardware security modules. It relies on software-based implementations for AES or SHA functions. For secure boot or key storage, external secure elements or TI's later MSP430FR59xx series with AES-128 modules must be considered - the MSP430FR5739CY focuses on ultra-low-power sensing, not security-critical applications.
What package options are available for the MSP430FR5739CY, and which is documented in the datasheet?
The MSP430FR5739CY is specified in the SLAS639L datasheet for the 40-pin VQFN (RHA) package. While other variants like MSP430FR5739DA (38-pin TSSOP) exist in the same family, the CY suffix explicitly denotes the RHA package per TI's device nomenclature - confirmed by pin diagrams in Section 4.1 and mechanical data in Section 8.
Can the MSP430FR5739CY operate from a 1.8-V supply?
No, the MSP430FR5739CY has a minimum recommended supply voltage of 2.0 V per Section 5.3 (Recommended Operating Conditions) of the datasheet. Operation below 2.0 V risks unstable FRAM writes, incorrect ADC conversions, and potential core lockup - it is not characterized or guaranteed for 1.8-V operation.
How does the FRAM memory in the MSP430FR5739CY differ from traditional flash in terms of write endurance and speed?
The MSP430FR5739CY's 16KB FRAM offers 10¹⁵ write cycles - 100,000× greater than typical flash - and performs writes in 125 ns per word (16KB in 1 ms), with no erase-before-write requirement. This eliminates flash wear leveling overhead and enables reliable, high-frequency data logging directly to nonvolatile memory without buffering or wear management firmware.
MSP430FR5739CY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- Die
- Series:
- MSP430™ FRAM
- Packaging:
- Tray
- 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:
- 16
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR5739CY FAQ
1.How can I place an order for MSP430FR5739CY through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5739CY 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 MSP430FR5739CY reliable?
The price and inventory of MSP430FR5739CY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5739CY is usually 5 days.
3.What payment methods are accepted for MSP430FR5739CY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5739CY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5739CY?
MSP430FR5739CY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5739CY 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 MSP430FR5739CY?
For technical support, including MSP430FR5739CY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5739CY requirements.
6.How does Aetrix verify that MSP430FR5739CY is sourced from the original manufacturer or authorized distributors?
All MSP430FR5739CY 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 MSP430FR5739CY meets industry standards.
7.What is the process for return or replacement of MSP430FR5739CY?
All MSP430FR5739CY units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5739CY, 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 MSP430FR5739CY part is unused and in its original packaging.
Return procedure for MSP430FR5739CY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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