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Texas Instruments MSP430FR5738IRGET
- Part No.:
- MSP430FR5738IRGET
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR5738IRGET.pdf
- Description:
- IC MCU 16BIT 16KB FRAM 24VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,126
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Product details
Overview
MSP430FR5738IRGET from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 16KB ferroelectric RAM (FRAM), 24-MHz CPU, 10-bit ADC with 6 external channels, 10-channel analog comparator, 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 and real-time data logging.
For engineers reviewing the MSP430FR5738IRGET datasheet, MSP430FR5738IRGET pinout, MSP430FR5738IRGET application, or MSP430FR5738IRGET equivalent, key selection criteria include FRAM write endurance (10¹⁵ cycles), LPM3.5 RTC current (1.5 µA), 24-pin VQFN package footprint, integrated hardware multiplier, and eUSCI_A0/eUSCI_B0 peripheral flexibility for low-power communication stacks.
Technical Context
The MSP430FR5738IRGET implements a 16-bit RISC CPUXV2 core with seven low-power modes, including LPM4.5 shutdown (0.32 µA). Its FRAM architecture enables simultaneous read/write without erase cycles and built-in ECC/MPU for data integrity in safety-critical sensing applications.
Peripherals include three 16-bit timers (TA0/TA1/TB0), 32-bit hardware multiplier, 16-bit CRC engine, RTC with calendar/alarm, and eUSCI modules configured for UART bootloading, I²C slave addressing, and SPI master clocking up to 8 MHz - all synchronized via a flexible clock system with DCO, VLO, LFXT, and HFXT sources.
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 gate count and minimal power per instruction. |
| Nonvolatile Memory | 16KB FRAM with 10¹⁵ write cycles - eliminates flash wear-out concerns in frequent data-logging applications like metering or environmental monitoring. |
| ADC | 10-bit SAR ADC with 6 external + 2 internal channels, 200 ksps at 100 µA - supports high-resolution analog sensing with sub-100 µs conversion time per sample. |
| Low-Power Modes | LPM3.5 (RTC active): 1.5 µA typical; LPM4.5 (shutdown): 0.32 µA - extends coin-cell battery life to multi-year operation in always-on sensor endpoints. |
| eUSCI Peripherals | eUSCI_A0 (UART/IrDA/SPI) + eUSCI_B0 (I²C/SPI) - enables dual-protocol communication without external level shifters or protocol translators. |
| Package | 24-pin VQFN (RGE), 4 mm × 4 mm - provides compact layout for space-constrained IoT edge nodes while maintaining thermal pad for reliable power dissipation. |
| Supply Range | 2.0 V to 3.6 V - compatible with single-cell Li-ion, Li-SOCl₂, or dual-cell alkaline battery systems without external regulators. |
Pinout & Package
24-pin VQFN (RGE) package with 0.5-mm pitch and exposed thermal pad connected to DVSS. Pin count and signal mapping align with TI's MSP430FR573x family RGE variant specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0.1/DMAE0/RTCCLK/A0*/CD0/VeREF- | Multi-function I/O | Primary ADC input A0, RTC calibration output, TA0 capture input, and DMA trigger source - enables time-stamped sensor sampling with hardware acceleration. |
| P1.1/TA0.2/TA1CLK/CDOUT/A1*/CD1/VeREF+ | Multi-function I/O | ADC reference input VeREF+, comparator output CDOUT, and timer clock source - supports precision ratiometric measurements and PWM synchronization. |
| P1.3/TA1.2/UCB0STE/A3*/CD3 | Multi-function I/O | eUSCI_B0 SPI slave transmit enable and ADC channel A3 input - allows daisy-chained sensor interfaces with automatic peripheral handshaking. |
| P1.4/TB0.1/UCA0STE/A4*/CD4 | Multi-function I/O | eUSCI_A0 SPI slave transmit enable and ADC channel A4 input - enables concurrent analog acquisition and serial command response in sensor hubs. |
| PJ.0/TDO/TB0OUTH/SMCLK/CD6 | Multi-function I/O | JTAG test data output, SMCLK clock source, and comparator input CD6 - supports in-system debug, clock distribution, and analog threshold detection on same pin. |
| RST/NMI/SBWTDIO | Reset & debug I/O | Unified reset/NMI input and Spy-Bi-Wire debug interface - reduces board routing complexity versus separate JTAG pins. |
Key Features
| Feature | Design Value |
|---|---|
| FRAM memory | 16KB unified nonvolatile memory enabling instant write, zero-latency execution from memory, and elimination of flash erase delays in firmware updates. |
| Hardware multiplier | 32-bit MPY unit accelerates math-intensive tasks (e.g., FFT, filtering) in <1 µs per multiply - critical for real-time signal processing at ultra-low power. |
| Integrated RTC | Calendar-mode RTC with alarm and crystal support in LPM3.5 draws only 1.5 µA - delivers precise timekeeping for scheduled wake-up and timestamped data logging. |
| Three-channel DMA | Automates data movement between ADC, FRAM, and eUSCI without CPU intervention - reduces active mode time by >40% in continuous acquisition scenarios. |
| Voltage supervisor | On-chip SVS with reset capability monitors both core (VCORE) and supply (DVCC) rails - ensures robust operation during brownout or battery sag without external supervisors. |
Applications
| Smart Utility Metering | Wireless Sensor Node |
|---|---|
Use Scenario: Gas/water meter with pulse counting, temperature compensation, and RF transmission every 15 minutes. IC Role / Device Role / Timing Role: Main controller managing metrology ADC, RTC-triggered wake-up, FRAM-based event logging, and eUSCI-driven sub-GHz transceiver interface. Use Value: 16KB FRAM stores 30+ days of hourly consumption logs with 10¹⁵ write cycles; LPM4.5 current (0.32 µA) enables 10-year battery life on CR2450. |
Use Scenario: Battery-powered environmental node measuring temperature, humidity, and CO₂ via analog sensors and transmitting via BLE gateway. IC Role / Device Role / Timing Role: Central sensor aggregator performing ADC sampling, digital filtering, FRAM buffering, and UART-to-BLE bridge via eUSCI_A0. Use Value: Simultaneous ADC + FRAM write + eUSCI transmit enabled by 3-channel DMA cuts active time to <50 µs per sample - extending 2000 mAh battery to >5 years. |
| Industrial Condition Monitoring | Home Automation Hub |
Use Scenario: Vibration and temperature monitor on motor drives with predictive maintenance alerts sent over RS-485. IC Role / Device Role / Timing Role: Real-time signal processor capturing analog waveforms via ADC, executing FFT using hardware MPY, and storing spectral features in FRAM before transmission. Use Value: 32-bit MPY completes 64-point FFT in <200 µs; FRAM retains waveform metadata across power loss - enabling post-failure diagnostics. |
Use Scenario: Zigbee/Z-Wave hub collecting data from door/window sensors, motion detectors, and smart plugs. IC Role / Device Role / Timing Role: Protocol translator interfacing I²C sensors (eUSCI_B0), managing secure OTA updates in FRAM, and coordinating timed polling via RTC alarm interrupts. Use Value: Dual eUSCI modules handle concurrent I²C sensor reads and Zigbee UART traffic; FRAM's fast write enables atomic firmware update rollback without external EEPROM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR5738IPW | 28-pin TSSOP package (9.7 mm × 4.4 mm); 8 external ADC channels; 12-channel comparator | Higher I/O count and larger PCB footprint; better suited for prototyping or designs requiring more analog inputs | Select when board layout permits larger package and additional ADC/comparator channels are needed for multi-sensor fusion. |
| MSP430FR5739IRHA | 40-pin VQFN package; 12 external ADC channels; 16-channel comparator; full Timer_B implementation (3 instances) | Enhanced analog and timing capability for complex metrology or motor control; requires larger PCB area and higher BOM cost | Choose for applications needing >6 ADC channels, full 3-Timer_B PWM generation, or extended I/O for display/interface peripherals. |
Compared with MSP430FR5738IPW and MSP430FR5739IRHA, the MSP430FR5738IRGET offers the smallest footprint (4 mm × 4 mm) and lowest system-level power in compact sensor endpoints, trading off ADC channel count and timer depth for space and energy efficiency.
Availability
MSP430FR5738IRGET is available at Aetrix Electronics and suitable for smart metering, wireless sensor networks, and industrial condition monitoring requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MSP430FR5738IRGET 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, and industrial applications - leveraging FRAM to eliminate flash limitations in data-intensive edge devices.
FAQ
What is the maximum operating frequency of the MSP430FR5738IRGET?
The MSP430FR5738IRGET supports a maximum system clock frequency of 24 MHz via its digitally controlled oscillator (DCO) with six factory-trimmed frequencies. This enables high-speed computation for real-time signal processing while maintaining ultra-low power in active mode (81.4 µA/MHz typical). The MSP430FR5738IRGET achieves deterministic timing for time-critical tasks such as PWM generation and ADC sampling without performance throttling.
Does the MSP430FR5738IRGET support hardware UART bootloading?
Yes, the MSP430FR5738IRGET includes a hardware UART bootloader (BSL) accessible via eUSCI_A0, allowing field firmware updates without JTAG hardware. The BSL operates at standard baud rates and supports password-protected memory access. This feature is fully integrated into the MSP430FR5738IRGET silicon and requires no external components - simplifying remote device maintenance and reducing bill-of-materials cost.
How many ADC input channels does the MSP430FR5738IRGET have?
The MSP430FR5738IRGET integrates a 10-bit ADC (ADC10_B) with 6 external analog input channels (A0–A5) plus 2 internal references (VeREF+ and VeREF−). This configuration is confirmed in Table 3-1 of the SLAS639L datasheet for the RGE package variant. The MSP430FR5738IRGET does not support the 8- or 12-channel ADC configurations found in larger-package variants like PW or RHA.
What low-power modes are available on the MSP430FR5738IRGET?
The MSP430FR5738IRGET supports seven low-power modes: LPM0–LPM4 and two deep-sleep variants (LPM3.5 and LPM4.5). Key currents include 6.3 µA in LPM3 (VLO active), 1.5 µA in LPM3.5 (RTC + crystal), and 0.32 µA in LPM4.5 (full shutdown). These values are measured under recommended operating conditions (2 V–3.6 V, 25°C) and are specified in Section 5.5 of the SLAS639L datasheet for the MSP430FR5738IRGET.
Is the MSP430FR5738IRGET pin-compatible with other MSP430FR573x devices in the RGE package?
Yes, the MSP430FR5738IRGET shares identical pinout, electrical characteristics, and signal mapping with all RGE-package MSP430FR573x devices (e.g., MSP430FR5730IRGE, MSP430FR5734IRGE), as defined in Figure 4-3 and Table 4-1 of the SLAS639L datasheet. This allows direct substitution within the same package family for design reuse - though functional differences (e.g., ADC channel count, timer instances) must be verified in software.
MSP430FR5738IRGET Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 24-VFQFN Exposed Pad
- Series:
- MSP430™ FRAM
- Packaging:
- Tape & Reel (TR)
- 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:
- 17
- 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 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR5738IRGET FAQ
1.How can I place an order for MSP430FR5738IRGET through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5738IRGET 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 MSP430FR5738IRGET reliable?
The price and inventory of MSP430FR5738IRGET are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5738IRGET is usually 5 days.
3.What payment methods are accepted for MSP430FR5738IRGET?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5738IRGET transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5738IRGET?
MSP430FR5738IRGET orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5738IRGET 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 MSP430FR5738IRGET?
For technical support, including MSP430FR5738IRGET datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5738IRGET requirements.
6.How does Aetrix verify that MSP430FR5738IRGET is sourced from the original manufacturer or authorized distributors?
All MSP430FR5738IRGET 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 MSP430FR5738IRGET meets industry standards.
7.What is the process for return or replacement of MSP430FR5738IRGET?
All MSP430FR5738IRGET units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5738IRGET, 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 MSP430FR5738IRGET part is unused and in its original packaging.
Return procedure for MSP430FR5738IRGET:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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