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Texas Instruments MSP430FR5729IRHAT
- Part No.:
- MSP430FR5729IRHAT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR5729IRHAT.pdf
- Description:
- IC MCU 16BIT 16KB FRAM 40VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:229
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Product details
Overview
MSP430FR5729IRHAT from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 16KB ferroelectric RAM (FRAM), 1KB SRAM, 8-MHz CPU, 12-channel 10-bit ADC, 16-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 RTC functionality.
For engineers reviewing the MSP430FR5729IRHAT datasheet, MSP430FR5729IRHAT pinout, MSP430FR5729IRHAT application, or MSP430FR5729IRHAT equivalent, key selection criteria include FRAM write cycle endurance (10¹⁵), LPM3.5 RTC current (1.5 µA), 40-pin VQFN package compatibility, and integrated hardware multiplier for real-time signal processing in constrained power budgets.
Technical Context
The MSP430FR5729IRHAT implements a 16-bit RISC CPUXV2 core with seven low-power modes, including LPM4.5 (0.32 µA shutdown). Its FRAM architecture enables byte-level writes without erase cycles, supported by built-in ECC and MPU for code/data integrity. The device integrates three 16-bit timers (Timer_A ×2, Timer_B ×3), a 32-bit hardware multiplier, and DMA for autonomous peripheral data movement.
Analog subsystem includes a 10-bit ADC with 200 ksps sampling at 100 µA, programmable hysteresis on all 16 comparator inputs, and internal voltage reference generation. Clock system combines DCO (six factory-trimmed frequencies), VLO, LFXT (32-kHz crystal), and HFXT for flexible timing control across operating modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with 8-MHz max clock - enables deterministic real-time execution in ultra-low-power sensing applications |
| Nonvolatile Memory | 16KB FRAM - supports 10¹⁵ write cycles, 125 ns/word write speed, and zero-erase writes for logging and firmware updates |
| ADC Performance | 12 external + 2 internal channel 10-bit ADC @ 200 ksps - delivers high-speed sensor digitization with 100 µA active current |
| Low-Power RTC Mode | LPM3.5 with crystal: 1.5 µA typical - sustains calendar/timekeeping during extended sleep with minimal battery drain |
| Package & Pins | VQFN-40 (6 mm × 6 mm) - provides 32 GPIOs, 4 dedicated analog inputs, and thermal pad for industrial-grade thermal management |
| Supply Range | 2.0 V to 3.6 V - compatible with single-cell Li-ion, Li-SOCl₂, and dual-AA battery systems without external regulators |
| Operating Temp | –40°C to +85°C - qualified for deployment in outdoor environmental sensors and building automation endpoints |
Pinout & Package
VQFN-40 (RHA) package with exposed thermal pad (recommended connection to DVSS). Pin count: 40. Body size: 6 mm × 6 mm. Pitch: 0.5 mm.
| 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, and DMA trigger source - enables time-stamped sensor capture |
| 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 analog measurement chains |
| PJ.4/XIN & PJ.5/XOUT | Clock Input/Output | Connects 32-kHz crystal for RTC operation - required for sub-µA real-time clock mode (LPM3.5) |
| RST/NMI/SBWTDIO | Reset & Debug | Active-low reset with NMI capability and Spy-Bi-Wire debug interface - enables in-system programming without JTAG header |
| VCORE | Core Power | Internal regulated core voltage supply - decoupling capacitor required per datasheet Section 5.18 for stable 1.8-V operation |
Key Features
| Feature | Design Value |
|---|---|
| FRAM endurance | 10¹⁵ write cycles - eliminates flash wear-out concerns in data-logging applications with frequent writes |
| Hardware CRC module | 16-bit cyclic redundancy checker - offloads checksum computation from CPU for secure firmware updates and sensor data integrity |
| eUSCI_A0 & eUSCI_A1 | Dual enhanced UART/SPI/IrDA interfaces - enables simultaneous host communication and sensor network bridging (e.g., UART-to-I²C gateway) |
| Integrated LDO | Fully integrated low-dropout regulator - simplifies power design by eliminating external LDO for core voltage regulation |
| MPU + ECC | Memory Protection Unit with Error Correction Coding - prevents unauthorized code execution and corrects single-bit FRAM errors in safety-critical firmware |
Applications
| Smart Metering Endpoint | Wireless Sensor Node |
|---|---|
Use Scenario: Battery-powered electricity/water meter collecting pulse counts and temperature over 10+ years. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing FRAM-based event logging, and maintaining RTC calendar via 32-kHz crystal. Use Value: 1.5 µA LPM3.5 RTC current extends battery life; 16KB FRAM stores 10+ years of tamper-proof usage logs without wear degradation. | Use Scenario: Industrial vibration sensor node transmitting FFT data via BLE gateway every 5 minutes. IC Role / Device Role / Timing Role: Signal acquisition MCU triggering ADC on timer events, performing real-time FFT via 32-bit hardware multiplier, and waking radio only on data-ready interrupt. Use Value: Active-mode current of 81.4 µA/MHz minimizes energy per FFT; FRAM enables instant firmware patching without erase delays. |
| Building Automation Controller | Asset Tracking Beacon |
Use Scenario: HVAC zone controller reading temperature/humidity and modulating valve position via PWM outputs. IC Role / Device Role / Timing Role: System manager interfacing with I²C sensors, driving analog comparators for threshold detection, and generating PWM via Timer_B modules. Use Value: 16-channel comparator with programmable hysteresis reduces external component count; integrated LDO lowers BOM cost. | Use Scenario: GPS-denied indoor asset tag reporting location via RSSI triangulation using multiple BLE beacons. IC Role / Device Role / Timing Role: Low-duty-cycle controller sampling accelerometer every 30 s, storing motion history in FRAM, and initiating BLE advertisement on motion-triggered interrupt. Use Value: 0.32 µA LPM4.5 shutdown current maximizes shelf life; FRAM's radiation resistance ensures reliability in medical/industrial environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR5725IRHAT | 8KB FRAM, same 40-pin VQFN package, identical peripherals except reduced ADC channels (12 ext/2 int → 12 ext/2 int - same count but different channel mapping) | Lower memory footprint suffices for simpler sensor fusion tasks without long-term local storage | Select when FRAM capacity >8KB is unnecessary and cost optimization is prioritized |
| MSP430FR2476TRHBT | 16KB FRAM, 64-pin VQFN, higher I/O count (48 GPIO), no RTC_B module, different timer configuration (Timer_A ×2 only) | Targeted at larger control panels requiring more GPIOs and PWM outputs, but lacks crystal-based RTC for precise timekeeping | Select when board layout allows larger package and RTC functionality is not required |
Compared with MSP430FR5725IRHAT, the MSP430FR5729IRHAT provides double FRAM capacity for extended data logging; compared with MSP430FR2476TRHBT, it retains crystal-based RTC and tighter thermal profile in 40-pin VQFN - critical for space-constrained, time-sensitive edge nodes.
Availability
MSP430FR5729IRHAT is available at Aetrix Electronics and suitable for smart metering, wireless sensor networks, building automation controllers, and asset tracking beacons requiring stable component supply across multi-year production cycles.
Supply support for MSP430FR5729IRHAT 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 MSP430FR57xx family was designed specifically for ultra-low-power sensing and system management in battery-operated infrastructure monitoring applications where FRAM endurance and sub-µA RTC operation are mandatory.
FAQ
What is the maximum operating frequency of the MSP430FR5729IRHAT?
The MSP430FR5729IRHAT supports a maximum system clock frequency of 8 MHz. This is achieved using the digitally controlled oscillator (DCO) with six factory-trimmed frequencies, or optionally via external HFXT crystal. The 8-MHz capability enables real-time processing of sensor data while maintaining ultra-low-power efficiency in active mode (81.4 µA/MHz typical).
Does the MSP430FR5729IRHAT support crystal-based real-time clock operation?
Yes, the MSP430FR5729IRHAT supports crystal-based RTC operation using a 32-kHz external crystal connected to PJ.4/XIN and PJ.5/XOUT pins. In LPM3.5 mode with this crystal, the device achieves 1.5 µA typical current consumption while maintaining calendar and alarm functions - a key feature distinguishing it from lower-tier FRAM MCUs.
How many general-purpose I/O pins does the MSP430FR5729IRHAT provide in its VQFN-40 package?
The MSP430FR5729IRHAT in the RHA (VQFN-40) package provides 32 general-purpose I/O pins. These are distributed across Ports P1, P2, P3, P4, and PJ. All support interrupt and wake-up from low-power modes LPM3.5 and LPM4.5, enabling responsive event-driven operation in battery-powered systems.
What is the FRAM endurance specification for the MSP430FR5729IRHAT?
The MSP430FR5729IRHAT features 16KB of FRAM rated for 10¹⁵ write cycles - effectively unlimited for all practical embedded applications. Unlike flash memory, FRAM supports byte-level writes without erase overhead, enabling reliable data logging, parameter storage, and firmware updates even under frequent write conditions.
Is the MSP430FR5729IRHAT pin-compatible with other devices in the MSP430FR57xx family?
Yes, the MSP430FR5729IRHAT shares identical pinout and package (VQFN-40 RHA) with MSP430FR5721IRHAT, MSP430FR5723IRHAT, MSP430FR5725IRHAT, and MSP430FR5727IRHAT. This allows direct substitution within the same footprint when memory or peripheral requirements change - provided software accounts for differences in FRAM size and ADC/comparator channel availability.
MSP430FR5729IRHAT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 40-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:
- 8MHz
- Connectivity:
- I2C, IrDA, LINbus, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 32
- 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:
MSP430FR5729IRHAT FAQ
1.How can I place an order for MSP430FR5729IRHAT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5729IRHAT 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 MSP430FR5729IRHAT reliable?
The price and inventory of MSP430FR5729IRHAT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5729IRHAT is usually 5 days.
3.What payment methods are accepted for MSP430FR5729IRHAT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5729IRHAT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5729IRHAT?
MSP430FR5729IRHAT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5729IRHAT 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 MSP430FR5729IRHAT?
For technical support, including MSP430FR5729IRHAT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5729IRHAT requirements.
6.How does Aetrix verify that MSP430FR5729IRHAT is sourced from the original manufacturer or authorized distributors?
All MSP430FR5729IRHAT 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 MSP430FR5729IRHAT meets industry standards.
7.What is the process for return or replacement of MSP430FR5729IRHAT?
All MSP430FR5729IRHAT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5729IRHAT, 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 MSP430FR5729IRHAT part is unused and in its original packaging.
Return procedure for MSP430FR5729IRHAT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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