My Inquiry
My Account
Texas Instruments MSP430FR5729IRHAR
- Part No.:
- MSP430FR5729IRHAR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR5729IRHAR.pdf
- Description:
- IC MCU 16BIT 16KB FRAM 40VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:9,690
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MSP430FR5729IRHAR from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 16KB ferroelectric RAM (FRAM), 1KB SRAM, 8-MHz system clock, 12-channel 10-bit ADC, and dual eUSCI modules supporting UART/IrDA/SPI/I²C - deployed in battery-powered sensor nodes and industrial data loggers requiring nonvolatile memory endurance and sub-µA RTC operation.
For engineers reviewing the MSP430FR5729IRHAR datasheet, MSP430FR5729IRHAR pinout, MSP430FR5729IRHAR application, or MSP430FR5729IRHAR equivalent, key selection criteria include FRAM write endurance (10¹⁵ cycles), LPM3.5 RTC current (1.5 µA), 40-pin VQFN package thermal pad requirement, and eUSCI_A0/eUSCI_A1 UART auto-baud detection capability.
Technical Context
The MSP430FR5729IRHAR integrates a 16-bit CPUXV2 core with hardware multiplier and three-channel DMA, enabling deterministic real-time processing for time-critical sensor fusion. Its FRAM memory architecture eliminates erase-before-write latency and supports simultaneous read/write operations without blocking CPU execution.
Power management includes an integrated LDO, supply voltage supervisor with reset, and zero-power brownout detection. Clocking combines factory-trimmed DCO (up to 8 MHz), VLO, LFXT (32 kHz crystal), and HFXT - all configurable via software-controlled clock system registers for dynamic power/performance trade-offs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| FRAM Capacity | 16 KB nonvolatile memory with 125 ns/word write speed and 10¹⁵ write-cycle endurance - enables frequent logging without wear leveling. |
| ADC Resolution | 10-bit SAR ADC with 12 external + 2 internal channels, 200 ksps sampling at 100 µA - suitable for multi-sensor analog front-end acquisition. |
| LPM3.5 Current | 1.5 µA typical with 32-kHz crystal RTC active - extends battery life in always-on timekeeping applications. |
| eUSCI Interfaces | Two eUSCI_A (UART/IrDA/SPI) and one eUSCI_B (I²C/SPI) - supports concurrent wired communication protocols without external transceivers. |
| Operating Voltage | 2.0 V to 3.6 V - compatible with single-cell Li-ion, Li-SOCl₂, and two-cell alkaline battery systems. |
| Package | 40-pin VQFN (RHA), 6 mm × 6 mm, exposed thermal pad - requires PCB thermal via array for sustained 8-MHz operation. |
| Temperature Range | –40°C to +85°C - qualified for industrial and outdoor environmental monitoring deployments. |
Pinout & Package
40-pin VQFN (RHA) package with 0.5-mm pitch and exposed thermal pad connected to DVSS. Pin count and signal mapping align with MSP430FR5721/FR5723/FR5725/FR5727/FR5729 RHA variants per TI SLASE35C datasheet Figure 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 input, and DMA trigger source - enables synchronized timestamped sensor reads. |
| PJ.4/XIN & PJ.5/XOUT | Clock Input/Output | Connects to 32-kHz crystal for low-power RTC mode; XIN must be AC-coupled if driven externally. |
| RST/NMI/SBWTDIO | Reset & Debug | Active-low reset with NMI capability; functions as Spy-Bi-Wire data I/O for programming and debug without JTAG header. |
| VCORE | Core Power | Internal LDO output for CPU and FRAM - requires 1-µF ceramic decoupling close to pin. |
| DVCC / DVSS | Digital Supply | Primary digital domain supply (DVCC) and ground (DVSS); separate from AVCC/AVSS to minimize analog noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| FRAM Memory Protection | Built-in ECC and MPU prevent bit errors and unauthorized memory access - critical for firmware integrity in remote deployments. |
| Hardware CRC Engine | 16-bit cyclic redundancy checker accelerates data packet validation and memory checksums without CPU overhead. |
| Real-Time Clock (RTC) | Calendar mode with alarm interrupt and 32-kHz crystal support - delivers precise time-stamping for event-triggered logging. |
| Ultra-Low-Power Timers | Five 16-bit timers (TA0/TA1/TB0/TB1/TB2) with capture/compare and PWM - enable sensor wake-up scheduling and pulse-width modulation control. |
| Comparator_D | 16-channel analog comparator with programmable hysteresis and internal reference - replaces external comparators in threshold-detection circuits. |
Applications
| Smart Utility Metering | Wireless Sensor Node |
|---|---|
Use Scenario: Battery-powered electricity/water meter collecting consumption data every 15 minutes and transmitting via LPWAN. IC Role / Device Role / Timing Role: Main controller managing ADC sampling, FRAM-based data buffering, RTC-driven wakeup, and eUSCI_A0 UART communication to modem. Use Value: 1.5 µA LPM3.5 RTC current enables >10-year battery life; 16KB FRAM stores 30 days of interval data without flash wear-out. | Use Scenario: Environmental monitor measuring temperature, humidity, and CO₂ in HVAC ducts with periodic BLE transmission. IC Role / Device Role / Timing Role: Sensor hub aggregating analog inputs, executing calibration algorithms, and triggering eUSCI_B0 I²C reads from slave sensors. Use Value: Simultaneous FRAM read/write allows background logging while servicing communication interrupts - no data loss during burst transmissions. |
| Industrial Data Logger | Home Automation Hub |
Use Scenario: DIN-rail mounted logger recording vibration, current, and voltage waveforms from motor drives over 72-hour periods. IC Role / Device Role / Timing Role: High-speed data acquisition controller using DMA-driven ADC transfers to FRAM, with TB0/TB1 generating precise sample clocks. Use Value: 200 ksps ADC sampling at 100 µA enables high-resolution waveform capture while maintaining ultra-low average power. | Use Scenario: Central gateway coordinating Zigbee and Z-Wave devices, polling status and updating local rule engine. IC Role / Device Role / Timing Role: Protocol translator running dual eUSCI_A instances (one for Zigbee UART, one for Z-Wave UART) with IrDA support for legacy IR remotes. Use Value: Hardware UART auto-baud detection simplifies integration with third-party modules having variable baud rates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power FRAM MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR5725IRHAR | 8KB FRAM, same 40-pin RHA package, identical peripherals except reduced ADC channel count (12 ext/2 int → 12 ext/2 int, but FR5725 shares same spec table entry) | Lower memory density suits simpler data buffering needs; identical RTC and timer subsystems | Select when application requires ≤8KB nonvolatile storage and cost optimization is prioritized over future FRAM scalability. |
| MSP430FR5969IPZ | 64-pin LQFP, 64KB FRAM, enhanced USCI (eUSCI_A3), higher GPIO count, and integrated LCD driver - not pin-compatible | Targeted at feature-rich HMI and advanced metering with display; larger footprint and higher BOM cost | Choose for next-generation designs needing expanded memory, more I/O, or integrated display control - requires PCB redesign. |
Compared with MSP430FR5725IRHAR, the MSP430FR5729IRHAR provides double FRAM capacity for extended data retention without external memory, while MSP430FR5969IPZ offers architectural scalability at the cost of layout compatibility and component count increase.
Availability
MSP430FR5729IRHAR is available at Aetrix Electronics and suitable for smart utility metering, wireless sensor node development, and industrial data logging requiring stable component supply, long-term FRAM reliability, and verified ultra-low-power performance across temperature.
Supply support for MSP430FR5729IRHAR 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 with focus on energy efficiency and system-level innovation.
The MSP430FR57xx family was designed for ultra-low-power sensing and system management in building automation, smart grid infrastructure, and industrial IoT edge nodes where memory endurance and sub-µA sleep modes are critical.
FAQ
What is the maximum operating frequency of the MSP430FR5729IRHAR?
The MSP430FR5729IRHAR supports a maximum system clock frequency of 8 MHz, achieved using the factory-trimmed DCO oscillator. This frequency is fully operational across the full –40°C to +85°C temperature range and 2.0 V to 3.6 V supply voltage, enabling deterministic real-time response for time-critical sensor processing tasks within the MSP430FR5729IRHAR's power budget.
Does the MSP430FR5729IRHAR support hardware debugging without a JTAG header?
Yes, the MSP430FR5729IRHAR supports Spy-Bi-Wire (SBW) debugging using only two pins: TEST/SBWTCK and RST/NMI/SBWTDIO. This 2-wire interface enables full flash programming, breakpoint setting, and register inspection through Code Composer Studio™ without requiring a 4-wire JTAG connector, reducing PCB footprint and BOM cost for the MSP430FR5729IRHAR design.
How does FRAM endurance compare to flash in the MSP430FR5729IRHAR?
The MSP430FR5729IRHAR's 16KB FRAM offers 10¹⁵ write cycles - 100,000× greater than typical embedded flash - with no erase latency and byte-level writes. Unlike flash, FRAM in the MSP430FR5729IRHAR permits simultaneous read/write operations, eliminating blocking delays during firmware updates or high-frequency data logging scenarios.
What crystal specifications are required for RTC operation on the MSP430FR5729IRHAR?
For RTC operation in LPM3.5 mode, the MSP430FR5729IRHAR requires a 32.768-kHz tuning-fork crystal connected to PJ.4/XIN and PJ.5/XOUT. TI recommends crystals with load capacitance of 12.5 pF, frequency tolerance ≤20 ppm, and ESR ≤50 kΩ to ensure reliable 1.5 µA RTC current and calendar accuracy across temperature for the MSP430FR5729IRHAR.
Can the MSP430FR5729IRHAR drive an external crystal in high-frequency mode?
Yes, the MSP430FR5729IRHAR supports HFXT operation up to 16 MHz using an external crystal or resonator on PJ.4/XIN and PJ.5/XOUT. However, HFXT configuration requires disabling the LFXT oscillator first, and startup time increases significantly versus DCO - this mode is typically reserved for brief high-performance bursts rather than continuous operation in the MSP430FR5729IRHAR.
MSP430FR5729IRHAR 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:
MSP430FR5729IRHAR FAQ
1.How can I place an order for MSP430FR5729IRHAR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5729IRHAR 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 MSP430FR5729IRHAR reliable?
The price and inventory of MSP430FR5729IRHAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5729IRHAR is usually 5 days.
3.What payment methods are accepted for MSP430FR5729IRHAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5729IRHAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5729IRHAR?
MSP430FR5729IRHAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5729IRHAR 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 MSP430FR5729IRHAR?
For technical support, including MSP430FR5729IRHAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5729IRHAR requirements.
6.How does Aetrix verify that MSP430FR5729IRHAR is sourced from the original manufacturer or authorized distributors?
All MSP430FR5729IRHAR 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 MSP430FR5729IRHAR meets industry standards.
7.What is the process for return or replacement of MSP430FR5729IRHAR?
All MSP430FR5729IRHAR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5729IRHAR, 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 MSP430FR5729IRHAR part is unused and in its original packaging.
Return procedure for MSP430FR5729IRHAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MSP430FR5729IRHAR Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
