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Texas Instruments MSP430FR5736IRGET
- Part No.:
- MSP430FR5736IRGET
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR5736IRGET.pdf
- Description:
- IC MCU 16BIT 16KB FRAM 24VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,751
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Product details
Overview
MSP430FR5736IRGET from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller with 16KB nonvolatile memory, 1KB RAM, 10-bit ADC (12 external + 2 internal channels), 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 fast write endurance and RTC-based data logging.
For engineers reviewing the MSP430FR5736IRGET datasheet, MSP430FR5736IRGET pinout, MSP430FR5736IRGET application, or MSP430FR5736IRGET equivalent, key selection criteria include FRAM write cycle endurance (10¹⁵), real-time clock with calendar mode, low-power LPM3.5 current (1.5 µA with crystal), and 24-pin VQFN (RGE) package compatibility with space-constrained IoT endpoints.
Technical Context
The MSP430FR5736IRGET implements the MSP430 CPUXV2 core with 16-bit RISC architecture and integrated FRAM memory controller enabling byte-level writes without erase. Its power management system includes an on-chip LDO, SVS with reset, and zero-power brownout detection - all optimized for intermittent wake-up operation in energy-harvesting systems.
Peripherals are tightly coupled via three-channel DMA and synchronized to multiple clock domains: MCLK (up to 8 MHz), SMCLK, and ACLK (32 kHz crystal or VLO). The device supports simultaneous UART bootloading (BSL) and active peripheral operation, with eUSCI_A0/A1 and eUSCI_B0 providing protocol-flexible serial interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit MSP430 CPUXV2 with 8-MHz max clock - enables deterministic real-time control at ultra-low power |
| FRAM Size | 16 KB nonvolatile memory - supports firmware storage, data logging, and parameter retention without wear leveling |
| ADC Resolution | 10-bit SAR ADC with 12 external + 2 internal channels - delivers 200 ksps sampling at 100 µA, suitable for multi-sensor analog front-ends |
| Low-Power Mode LPM3.5 | 1.5 µA typical with 32-kHz crystal RTC - enables calendar-triggered wake-up for time-stamped sensor reads |
| Package | VQFN-24 (RGE), 4 mm × 4 mm - surface-mount footprint compatible with high-density PCB layouts |
| Operating Voltage | 2.0 V to 3.6 V - supports direct connection to single Li-ion or two alkaline cells without external regulation |
| Temperature Range | –40°C to +85°C - qualified for industrial and outdoor environmental monitoring deployments |
Pinout & Package
VQFN-24 (RGE) package with exposed thermal pad (recommended connection to DVSS). Pin count and signal mapping match the MSP430FR5728RGE variant per TI SLASE35C datasheet Section 4.3 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, and DMA trigger source - enables time-synced analog capture |
| P1.1/TA0.2/TA1CLK/CDOUT/A1*/CD1/VeREF+ | Multi-function I/O | ADC reference voltage input (VeREF+), comparator output, and timer clock source - supports ratiometric sensor measurements |
| 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 interface with local analog conversion |
| P1.4/TB0.1/UCA0STE/A4*/CD4 | Multi-function I/O | eUSCI_A0 SPI slave transmit enable and ADC channel A4 input - enables dual SPI peripheral control with on-chip signal conditioning |
| PJ.4/XIN & PJ.5/XOUT | Clock Input/Output | 32-kHz crystal connections for RTC accuracy - required for calendar-mode operation and low-jitter wake-up timing |
| RST/NMI/SBWTDIO | Reset & Debug | Three-in-one pin for reset assertion, non-maskable interrupt, and Spy-Bi-Wire debug I/O - reduces board routing complexity |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 16 KB nonvolatile memory with 125 ns/word write speed and 10¹⁵ write-cycle endurance - eliminates flash erase delays and wear-out concerns in frequent-data-update applications |
| Real-Time Clock (RTC_B) | Calendar mode with alarm and calibration registers - enables precise timestamping and scheduled wake-up without external RTC IC |
| Hardware Multiplier (MPY32) | 32-bit integer multiply-accumulate unit - accelerates sensor fusion algorithms and digital filtering in firmware |
| Three-Channel DMA | Autonomous data movement between peripherals and memory - offloads CPU during ADC-to-FRAM transfers and UART streaming |
| Enhanced USCI Modules | eUSCI_A0/A1 (UART/IrDA/SPI) and eUSCI_B0 (I²C/SPI) - provides concurrent wired communication paths for sensor aggregation and host connectivity |
Applications
| Smart Metering Endpoint | Wireless Sensor Node |
|---|---|
Use Scenario: Utility meter collecting voltage, current, and temperature at 15-minute intervals with tamper detection. IC Role / Device Role / Timing Role: Main controller executing metrology firmware, managing FRAM-based event logs, and driving RTC-triggered ADC sampling. Use Value: 10¹⁵ FRAM write cycles ensure >10-year log retention without degradation; LPM3.5 current of 1.5 µA extends battery life beyond 10 years on primary cells. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ in HVAC ducts. IC Role / Device Role / Timing Role: Sensor hub aggregating analog inputs via 10-bit ADC, formatting data via eUSCI_B0 I²C, and transmitting via eUSCI_A0 UART to LoRaWAN module. Use Value: Dual eUSCI modules enable simultaneous sensor readout and radio communication; 2.0–3.6 V operation matches lithium-thionyl chloride cell discharge curve. |
| Industrial Condition Monitoring | Asset Tracking Beacon |
Use Scenario: Vibration and temperature monitoring on rotating machinery with predictive maintenance alerts. IC Role / Device Role / Timing Role: Real-time data acquisition engine using TA0/TB0 timers for PWM-driven analog excitation and DMA-assisted FFT preprocessing. Use Value: 16-bit timers with 3 capture/compare registers support precise pulse-width modulation for piezoelectric sensor drive; FRAM stores calibration coefficients immune to power loss. | Use Scenario: GPS-denied indoor asset tracker logging location via BLE RSSI and motion via accelerometer interrupts. IC Role / Device Role / Timing Role: Low-power state manager waking on motion interrupt (P1.x), reading sensors, writing to FRAM, then entering LPM4.5 (0.32 µA). Use Value: Shutdown current of 0.32 µA enables multi-year operation on coin-cell batteries; RTC calendar mode schedules periodic BLE advertising bursts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power FRAM microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR5728RGE | Same 16KB FRAM, 1KB RAM, and RGE package; differs in ADC channel count (6 ext + 2 int vs. 12 ext + 2 int) and comparator inputs (10 vs. 16) | Suitable for simpler analog sensing where fewer external sensor inputs are required | Select when full 12-channel ADC capability is unnecessary and BOM cost optimization is prioritized |
| MSP430FR5969IRHAT | Higher FRAM (64 KB), same CPU and peripherals, but 40-pin RHA package (6 mm × 6 mm) and extended temperature range (–40°C to 105°C) | Better suited for complex firmware with large code footprint or automotive-adjacent industrial environments | Choose when additional memory headroom or extended temperature rating is mandatory, accepting larger footprint |
Compared with MSP430FR5728RGE, the MSP430FR5736IRGET provides 2× more external ADC channels and 60% more comparator inputs for richer analog front-end integration; versus MSP430FR5969IRHAT, it trades memory capacity and temperature grade for smaller size and lower unit cost in space-constrained consumer-grade deployments.
Availability
MSP430FR5736IRGET is available at Aetrix Electronics and suitable for smart metering endpoints, wireless sensor nodes, industrial condition monitoring systems, and asset tracking beacons requiring stable component supply and long-term production continuity.
Supply support for MSP430FR5736IRGET 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 building automation, smart grid infrastructure, and industrial IoT edge nodes - emphasizing FRAM reliability, RTC precision, and multi-protocol serial connectivity.
FAQ
What is the maximum operating frequency of the MSP430FR5736IRGET?
The MSP430FR5736IRGET supports a maximum system clock frequency of 8 MHz, achieved via its factory-trimmed DCO oscillator or external HFXT crystal. This frequency enables real-time execution of sensor processing routines while maintaining ultra-low active-mode current consumption of 81.4 µA/MHz - critical for extending battery life in duty-cycled applications.
Does the MSP430FR5736IRGET include hardware encryption or secure boot features?
No, the MSP430FR5736IRGET does not integrate hardware cryptographic accelerators or secure boot functionality. It relies on software-based security measures and external secure elements for authentication or encrypted firmware updates. For designs requiring built-in security, consider TI's MSP430FR59xx series with integrated AES-128 modules.
Can the MSP430FR5736IRGET operate from a single 1.8-V supply?
No, the MSP430FR5736IRGET requires a minimum supply voltage of 2.0 V per its recommended operating conditions. Operation below 2.0 V risks functional failure, including FRAM write corruption and RTC inaccuracy. For 1.8-V systems, select the MSP430FR2355 or MSP430FR2476, which are rated down to 1.8 V.
How many independent serial interfaces does the MSP430FR5736IRGET support simultaneously?
The MSP430FR5736IRGET integrates three independent enhanced USCI modules: eUSCI_A0, eUSCI_A1, and eUSCI_B0. These support concurrent UART, IrDA, SPI, and I²C protocols - enabling simultaneous communication with a host MCU (via UART), external sensors (via I²C), and auxiliary peripherals (via SPI) without time-division multiplexing.
Is the MSP430FR5736IRGET pin-compatible with other devices in the MSP430FR57xx family?
Yes, the MSP430FR5736IRGET shares the 24-pin VQFN (RGE) package and identical pinout with the MSP430FR5728RGE, as confirmed by TI's SLASE35C datasheet Section 4.3 and Table 4-1. This allows direct substitution in existing designs targeting that package variant, provided ADC channel and comparator requirements align.
MSP430FR5736IRGET 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:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR5736IRGET FAQ
1.How can I place an order for MSP430FR5736IRGET through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5736IRGET 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 MSP430FR5736IRGET reliable?
The price and inventory of MSP430FR5736IRGET are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5736IRGET is usually 5 days.
3.What payment methods are accepted for MSP430FR5736IRGET?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5736IRGET transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5736IRGET?
MSP430FR5736IRGET orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5736IRGET 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 MSP430FR5736IRGET?
For technical support, including MSP430FR5736IRGET datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5736IRGET requirements.
6.How does Aetrix verify that MSP430FR5736IRGET is sourced from the original manufacturer or authorized distributors?
All MSP430FR5736IRGET 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 MSP430FR5736IRGET meets industry standards.
7.What is the process for return or replacement of MSP430FR5736IRGET?
All MSP430FR5736IRGET units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5736IRGET, 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 MSP430FR5736IRGET part is unused and in its original packaging.
Return procedure for MSP430FR5736IRGET:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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