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Texas Instruments MSP430FR5738IRGER
- Part No.:
- MSP430FR5738IRGER
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR5738IRGER.pdf
- Description:
- IC MCU 16BIT 16KB FRAM 24VQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MSP430FR5738IRGER 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, 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 MSP430FR5738IRGER datasheet, MSP430FR5738IRGER pinout, MSP430FR5738IRGER application, or MSP430FR5738IRGER equivalent, key selection criteria include FRAM endurance (10¹⁵ write cycles), LPM3.5 RTC current (1.5 µA), 24-pin VQFN package footprint, and verified compatibility with TI's MSP-FET430U40A debugger and MSP-EXP430FR5739 launchpad.
Technical Context
The MSP430FR5738IRGER implements a 16-bit RISC CPUXV2 core with hardware multiplier and three-channel DMA, enabling deterministic real-time control. Its memory subsystem integrates 16KB FRAM with built-in ECC and MPU for code/data/storage consolidation, eliminating separate flash and RAM partitions.
Peripherals include two eUSCI_A modules (UART/IrDA/SPI) and one eUSCI_B module (I²C/SPI), plus five 16-bit timers (TA0/TA1/TB0/TB1/TB2), RTC with calendar/alarm, and a 10-bit ADC sampling at 200 ksps with internal reference - all optimized for sub-µA low-power mode operation including LPM4.5 (0.32 µA shutdown).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with 32-bit hardware multiplier and three-channel DMA |
| FRAM Capacity | 16KB nonvolatile memory with 10¹⁵ write endurance, 125 ns/word write speed, and integrated ECC |
| ADC Resolution & Channels | 10-bit SAR ADC with 6 external + 2 internal input channels, 200 ksps max sample rate |
| Comparator Channels | 10-channel analog comparator with programmable hysteresis and internal voltage reference |
| Timers | Five 16-bit timers: TA0/TA1 (3 capture/compare registers each), TB0/TB1/TB2 (3, 3, 3 registers) |
| eUSCI Peripherals | eUSCI_A0/A1 (UART/IrDA/SPI), eUSCI_B0 (I²C/SPI); hardware UART bootloader (BSL) included |
| Supply Voltage Range | 2.0 V to 3.6 V - supports direct connection to single Li-ion or dual alkaline cells |
Pinout & Package
Package: 24-pin VQFN (RGE), 4 mm × 4 mm body, 0.5 mm pitch, 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 clock output, ADC channel A0 input, comparator CD0 input, DMA trigger source |
| P1.1/TA0.2/TA1CLK/CDOUT/A1*/CD1/VeREF+ | Multi-function I/O | ADC reference input (VeREF+), comparator output, TA0/TA1 clock source |
| P1.2/TA1.1/TA0CLK/CDOUT/A2*/CD2 | Multi-function I/O | ADC channel A2 input, comparator CD2 input, timer clock input |
| P1.3/TA1.2/UCB0STE/A3*/CD3 | Multi-function I/O | ADC channel A3 input, comparator CD3 input, eUSCI_B0 SPI slave transmit enable |
| P1.4/TB0.1/UCA0STE/A4*/CD4 | Multi-function I/O | ADC channel A4 input, comparator CD4 input, eUSCI_A0 SPI slave transmit enable |
| P1.5/TB0.2/UCA0CLK/A5*/CD5 | Multi-function I/O | ADC channel A5 input, comparator CD5 input, eUSCI_A0 SPI clock signal |
| PJ.0/TDO/TB0OUTH/SMCLK/CD6 | Multi-function I/O | JTAG test data output, TB0 PWM high-impedance control, SMCLK output, comparator CD6 input |
| PJ.1/TDI/TCLK/TB1OUTH/MCLK/CD7 | Multi-function I/O | JTAG test data/clock input, TB1 PWM high-impedance control, MCLK output, comparator CD7 input |
| PJ.2/TMS/TB2OUTH/ACLK/CD8 | Multi-function I/O | JTAG test mode select, TB2 PWM high-impedance control, ACLK output, comparator CD8 input |
| PJ.3/TCK/CD9 | Multi-function I/O | JTAG test clock input, comparator CD9 input |
| RST/NMI/SBWTDIO | Reset & debug I/O | Reset input, non-maskable interrupt, Spy-Bi-Wire bidirectional debug data line |
| TEST/SBWTCK | Debug I/O | Spy-Bi-Wire test clock input - enables single-wire debugging without JTAG header |
| DVCC / DVSS | Power supply | Digital core supply (DVCC) and ground (DVSS) - decoupling required per layout guidelines |
| AVCC / AVSS | Analog supply | Analog domain supply (AVCC) and ground (AVSS) - separate from digital rails for noise isolation |
| PJ.4/XIN / PJ.5/XOUT | Clock input/output | Crystal oscillator connections for LFXT (32 kHz) or HFXT (up to 16 MHz) operation |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 16KB unified memory with 10¹⁵ write cycles, zero wait-state execution, and no erase-before-write overhead |
| Ultra-Low-Power Modes | LPM3.5 (RTC active): 1.5 µA; LPM4.5 (shutdown): 0.32 µA - extends coin-cell battery life to >10 years |
| Integrated Power Management | Fully integrated LDO, always-on brownout detection, and supply voltage supervisor with reset capability |
| Hardware Security | Memory Protection Unit (MPU) enforces privilege levels and prevents unauthorized memory access |
| Development Ecosystem | Full support for Code Composer Studio IDE, MSP-FET430U40A debugger, and MSP-EXP430FR5739 launchpad |
Applications
| Smart Sensor Node | Industrial Data Logger |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor transmitting readings via UART to gateway every 5 minutes. IC Role / Device Role / Timing Role: Primary controller executing sensor acquisition, FRAM-based data buffering, RTC-triggered wake-up, and low-power UART transmission. Use Value: 16KB FRAM stores 72 hours of 10-bit samples at 1 Hz; LPM3.5 current (1.5 µA) enables 5-year CR2032 battery life. | Use Scenario: Standalone environmental monitor logging voltage, current, and temperature in factory equipment cabinets. IC Role / Device Role / Timing Role: System manager acquiring analog inputs via ADC, timestamping with RTC calendar, and storing results in FRAM before USB upload. Use Value: Built-in 10-bit ADC with internal reference eliminates external precision components; FRAM write speed (125 ns/word) ensures no sample loss during burst logging. |
| Wireless Metering Endpoint | Low-Power Security Sensor |
Use Scenario: Sub-GHz RF meter reading device capturing pulse counts and voltage sag events for utility billing. IC Role / Device Role / Timing Role: Real-time event processor using comparator_D for fast edge detection on pulse inputs and FRAM for tamper-proof event storage. Use Value: 10-channel comparator with programmable hysteresis detects microsecond-level pulses; FRAM radiation resistance ensures data integrity in EM-noisy substations. | Use Scenario: Door/window contact sensor with magnetic reed switch and local alarm activation. IC Role / Device Role / Timing Role: Ultra-low-power state machine monitoring GPIO interrupts, managing wake-from-LPMx.5 transitions, and driving buzzer via timer PWM. Use Value: LPM4.5 shutdown current (0.32 µA) allows 10+ year operation on CR2032; integrated LDO enables stable 3.3 V rail from declining battery voltage. |
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); same FRAM, ADC, and peripheral set | Better manual solderability and prototyping visibility; larger PCB footprint than RGE | Select for breadboard evaluation or legacy TSSOP-compatible designs |
| MSP430FR5739IRHA | 40-pin VQFN (6 mm × 6 mm); adds 6 extra ADC channels (12 ext), 2 additional Timer_B instances, and 32 I/Os | Higher channel count for multi-sensor fusion; larger package limits space-constrained nodes | Select when expanding analog front-end or requiring more GPIO/timers without redesigning layout |
Compared with MSP430FR5738IPW and MSP430FR5739IRHA, the MSP430FR5738IRGER offers the smallest footprint (4 mm × 4 mm) while retaining full FRAM endurance and LPM3.5 RTC functionality - ideal for miniaturized sensor endpoints where board area and battery life are co-constrained.
Availability
MSP430FR5738IRGER is available at Aetrix Electronics and suitable for smart sensor nodes, industrial data loggers, and wireless metering endpoints requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for MSP430FR5738IRGER 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 delivers ultra-low-power mixed-signal MCUs with FRAM for battery-operated sensing, metering, and system management in building automation and smart grid infrastructure.
FAQ
What is the maximum operating frequency of the MSP430FR5738IRGER?
The MSP430FR5738IRGER supports a maximum system clock frequency of 24 MHz, achieved via its factory-trimmed DCO oscillator or external crystal (HFXT). This enables real-time processing of sensor data and communication protocols without compromising ultra-low-power operation in active or low-power modes.
Does the MSP430FR5738IRGER include hardware encryption or secure boot features?
The MSP430FR5738IRGER does not include dedicated hardware encryption accelerators or secure boot circuitry. It provides a Memory Protection Unit (MPU) for privilege-level memory access control and ECC for FRAM integrity, but cryptographic functions require software implementation or external secure elements.
Can the MSP430FR5738IRGER operate from a single 3.3-V supply without external regulators?
Yes, the MSP430FR5738IRGER integrates a fully functional LDO regulator and operates across 2.0 V to 3.6 V. When powered directly from a regulated 3.3-V source, it requires only standard DVCC/DVSS and AVCC/AVSS decoupling capacitors - no external regulator is needed for core or analog domains.
How many I²C interfaces does the MSP430FR5738IRGER support?
The MSP430FR5738IRGER supports one dedicated I²C interface via eUSCI_B0. It does not include a second I²C peripheral; eUSCI_A0 and eUSCI_A1 are configured for UART or SPI only. For multi-I²C bus designs, external multiplexing or software bit-banging is required.
Is the MSP430FR5738IRGER pin-compatible with other devices in the MSP430FR57xx family?
No, the MSP430FR5738IRGER (24-pin RGE) is not pin-compatible with other MSP430FR57xx variants. Pinouts differ significantly between RGE (24-pin), PW (28-pin), YQD (24-pin DSBGA), DA (38-pin), and RHA (40-pin) packages - even functionally identical pins occupy different physical locations.
MSP430FR5738IRGER 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:
MSP430FR5738IRGER FAQ
1.How can I place an order for MSP430FR5738IRGER through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5738IRGER 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 MSP430FR5738IRGER reliable?
The price and inventory of MSP430FR5738IRGER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5738IRGER is usually 5 days.
3.What payment methods are accepted for MSP430FR5738IRGER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5738IRGER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5738IRGER?
MSP430FR5738IRGER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5738IRGER 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 MSP430FR5738IRGER?
For technical support, including MSP430FR5738IRGER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5738IRGER requirements.
6.How does Aetrix verify that MSP430FR5738IRGER is sourced from the original manufacturer or authorized distributors?
All MSP430FR5738IRGER 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 MSP430FR5738IRGER meets industry standards.
7.What is the process for return or replacement of MSP430FR5738IRGER?
All MSP430FR5738IRGER units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5738IRGER, 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 MSP430FR5738IRGER part is unused and in its original packaging.
Return procedure for MSP430FR5738IRGER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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