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Texas Instruments MSP430FR5725IRHAR
- Part No.:
- MSP430FR5725IRHAR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR5725IRHAR.pdf
- Description:
- IC MCU 16BIT 8KB FRAM 40VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,895
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Product details
Overview
MSP430FR5725IRHAR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 8KB FRAM nonvolatile memory, 1KB RAM, and integrated peripherals including a 12-channel 10-bit ADC, 16-channel analog comparator, dual eUSCI_A (UART/IrDA/SPI) and eUSCI_B (I²C/SPI), RTC with calendar, five 16-bit timers, and hardware multiplier - deployed in battery-powered sensor nodes for industrial monitoring.
For engineers reviewing the MSP430FR5725IRHAR datasheet, MSP430FR5725IRHAR pinout, MSP430FR5725IRHAR application, or MSP430FR5725IRHAR equivalent, key selection criteria include FRAM endurance (10¹⁵ write cycles), LPM3.5 RTC current (1.5 µA), 8-MHz DCO clock accuracy, 200 ksps ADC throughput at 100 µA, and RHA package pin compatibility across FR572x family variants.
Technical Context
The MSP430FR5725IRHAR implements the MSP430 CPUXV2 core with unified FRAM memory architecture enabling simultaneous read/write without erase cycles. Its power management includes SVS/BOR with zero-power brownout detection, integrated LDO, and seven low-power modes optimized for intermittent sensing duty cycles.
Peripherals are tightly coupled via three-channel DMA and shared clock domains: SMCLK drives Timer_A/B and eUSCI modules; ACLK sources RTC and comparator; MCLK feeds CPU and MPY32. The RHA package supports full peripheral mapping including PJ.x JTAG/SBW debug pins and P3.x extended analog inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2, up to 8-MHz operation - enables deterministic real-time control with low gate count and minimal power per instruction. |
| Nonvolatile Memory | 8KB FRAM with ECC and MPU - provides flash-equivalent retention with SRAM-like write speed (125 ns/word) and infinite endurance for logging and firmware updates. |
| ADC Performance | 12-channel 10-bit SAR ADC, 200 ksps @ 100 µA - supports high-resolution sensor sampling without external signal conditioning in compact nodes. |
| Low-Power Modes | LPM3.5 (RTC active): 1.5 µA typical - sustains calendar timekeeping and wake-on-compare while preserving full FRAM/RAM state for instant resume. |
| Communication Interfaces | eUSCI_A0/A1 (UART/IrDA/SPI), eUSCI_B0 (I²C/SPI) - enables dual-protocol connectivity to sensors, radios, and host controllers without external level shifters. |
| Operating Voltage | 2.0 V to 3.6 V - compatible with single-cell Li-ion, Li-SOCl₂, and two-cell alkaline battery systems without external regulators. |
| Temperature Range | –40°C to +85°C - qualified for industrial-grade deployment in uncontrolled environments such as utility metering and building automation. |
Pinout & Package
VQFN-40 (RHA) package, 6 mm × 6 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 | Primary RTC calibration output, ADC channel A0 input, comparator CD0, and DMA trigger - enables time-stamped sensor acquisition with hardware synchronization. |
| PJ.4/XIN & PJ.5/XOUT | Crytal oscillator terminals | Supports 32-kHz LFXT for RTC accuracy ±20 ppm or HFXT for system clock - critical for time-sensitive applications like energy metering. |
| RST/NMI/SBWTDIO | Reset & debug interface | Single-pin Spy-Bi-Wire debug entry and NMI source - reduces PCB footprint vs. full JTAG while supporting field firmware updates. |
| VCORE | Core voltage supply | Internal LDO output pin - decoupling required to stabilize 1.8-V core rail; enables independent core/peripheral voltage scaling. |
| DVCC / DVSS | Digital supply rails | Separate digital power domain (1.8–3.6 V) - allows isolation from analog noise sources and simplifies mixed-signal layout. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 8KB nonvolatile memory with 10¹⁵ write endurance and 125-ns word writes - eliminates wear leveling and enables true data logging at sensor sampling rates. |
| Real-Time Clock (RTC) | Calendar mode with alarm and 1.5 µA LPM3.5 current - maintains accurate timekeeping during multi-year battery operation without external crystals. |
| Hardware Multiplier (MPY32) | 32-bit integer multiply in one cycle - accelerates sensor fusion algorithms (e.g., RMS, FFT bins) without consuming CPU cycles or increasing code size. |
| Three-Channel DMA | Automates ADC-to-FRAM transfers and timer-triggered peripheral handshaking - removes CPU overhead for continuous data acquisition pipelines. |
| Comparator_D with Hysteresis | 16-channel analog comparator with programmable hysteresis and internal reference - replaces external window comparators in threshold-detection circuits (e.g., smoke alarms, voltage monitors). |
Applications
| Smart Utility Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Two-way communication and tamper detection in electricity/water meters with decade-long battery life. IC Role / Device Role / Timing Role: Primary MCU managing metrology ADC, RTC-based billing intervals, secure BSL updates, and UART/I²C comms to PLC or RF module. Use Value: FRAM enables secure, wear-free storage of consumption logs and cryptographic keys; LPM3.5 RTC ensures accurate billing timestamps at <2 µA system sleep current. | Use Scenario: Wireless temperature/humidity node in HVAC ducts or factory floors with periodic wake-up and BLE transmission. IC Role / Device Role / Timing Role: Sensor aggregator executing ADC reads, CRC validation, and SPI transfers to transceiver; RTC schedules wake-ups every 30 seconds. Use Value: 200 ksps ADC captures transient thermal events; DMA offloads data movement; FRAM stores calibration coefficients across power cycles. |
| Asset Tracking Beacon | Home Security Sensor |
Use Scenario: GPS-denied indoor location tag using RSSI triangulation from gateway beacons, powered by coin cell. IC Role / Device Role / Timing Role: Low-duty-cycle controller reading accelerometer/temperature, computing motion flags, and triggering UCA1 UART to BLE SoC on event. Use Value: 0.32 µA LPM4.5 shutdown extends 10-year battery life; comparator_D detects motion thresholds without CPU wake-up; FRAM retains last known position. | Use Scenario: Door/window contact sensor with magnetic reed switch and wireless reporting to hub. IC Role / Device Role / Timing Role: Always-on comparator monitoring reed switch state; RTC alarm wakes CPU only on open/close events for encrypted transmission. Use Value: Comparator_D with hysteresis prevents false triggers from EMI; VeREF+/- enables precise threshold setting; 6.3 µA LPM3 standby minimizes quiescent drain. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR5729IRHAR | 16KB FRAM, same peripherals and RHA package - differs only in FRAM capacity and TLV descriptor. | Required where firmware image size exceeds 8KB or long-term data logging needs >8KB buffer space. | Select when future firmware growth or extended event history storage is anticipated; pin-compatible drop-in upgrade. |
| MSP430FR5969IPZ | 64KB FRAM, 2KB RAM, enhanced USCI, different 100-pin TQFP package - not pin-compatible. | Suited for complex edge-processing tasks (e.g., FFT, protocol stacks) requiring larger code/data space and more GPIO. | Choose for next-generation designs needing scalability; requires PCB redesign but shares FRAM architecture and toolchain. |
Compared with MSP430FR5729IRHAR, the MSP430FR5725IRHAR trades FRAM capacity for cost-sensitive deployments, while MSP430FR5969IPZ offers architectural headroom at the expense of footprint and layout change - all three share identical low-power modes, FRAM reliability, and TI's MSP430 development ecosystem.
Availability
MSP430FR5725IRHAR is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, asset tracking beacons, and home security sensors requiring stable component supply and long-term manufacturability.
Supply support for MSP430FR5725IRHAR 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 targets ultra-low-power sensing and system management in building automation, smart grid, and industrial designs - leveraging FRAM to eliminate flash write limitations in battery-operated endpoints.
FAQ
What is the maximum operating frequency of the MSP430FR5725IRHAR?
The MSP430FR5725IRHAR supports a maximum system clock frequency of 8 MHz via its digitally controlled oscillator (DCO), factory-trimmed across six selectable frequencies. This allows deterministic real-time execution while maintaining ultra-low active-mode current of 81.4 µA/MHz - critical for energy-constrained applications where processing latency must be balanced against battery life.
Does the MSP430FR5725IRHAR support hardware encryption or secure boot?
The MSP430FR5725IRHAR does not integrate dedicated hardware encryption engines or secure boot ROM. It relies on software-based cryptographic libraries and the Bootloader (BSL) with password protection for firmware updates. For applications requiring certified security, external secure elements or higher-tier MSP430FR59xx devices with AES-128 modules should be evaluated - the MSP430FR5725IRHAR prioritizes ultra-low power over cryptographic acceleration.
How many analog input channels does the MSP430FR5725IRHAR ADC support?
The MSP430FR5725IRHAR integrates the ADC10_B module with 12 external analog input channels (A0–A11) plus 2 internal references (VeREF+ and VeREF−), totaling 14 configurable inputs. Channel mapping is fixed per pin (e.g., P1.0 = A0, P1.1 = A1), and all channels share the same 10-bit resolution and 200 ksps sampling rate - enabling simultaneous multi-sensor acquisition without external multiplexers.
Can the MSP430FR5725IRHAR operate from a single 1.8-V supply?
No - the MSP430FR5725IRHAR requires a minimum supply voltage of 2.0 V per its recommended operating conditions. While its internal LDO regulates VCORE to 1.8 V, the DVCC input must be ≥2.0 V to ensure proper FRAM write margins, comparator reference stability, and eUSCI electrical characteristics. Operating below 2.0 V risks data corruption, timing violations, and undefined reset behavior.
Is the MSP430FR5725IRHAR pin-compatible with other devices in the FR572x family?
Yes - the MSP430FR5725IRHAR in the RHA package is pin-compatible with MSP430FR5721IRHAR, MSP430FR5723IRHAR, MSP430FR5727IRHAR, and MSP430FR5729IRHAR. All share identical 40-pin VQFN layouts, peripheral pin mappings, and power/ground assignments, enabling hardware reuse across variants differentiated only by FRAM size (4KB/8KB/16KB) and ADC channel count.
MSP430FR5725IRHAR 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:
- 8KB (8K 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:
MSP430FR5725IRHAR FAQ
1.How can I place an order for MSP430FR5725IRHAR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5725IRHAR 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 MSP430FR5725IRHAR reliable?
The price and inventory of MSP430FR5725IRHAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5725IRHAR is usually 5 days.
3.What payment methods are accepted for MSP430FR5725IRHAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5725IRHAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5725IRHAR?
MSP430FR5725IRHAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5725IRHAR 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 MSP430FR5725IRHAR?
For technical support, including MSP430FR5725IRHAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5725IRHAR requirements.
6.How does Aetrix verify that MSP430FR5725IRHAR is sourced from the original manufacturer or authorized distributors?
All MSP430FR5725IRHAR 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 MSP430FR5725IRHAR meets industry standards.
7.What is the process for return or replacement of MSP430FR5725IRHAR?
All MSP430FR5725IRHAR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5725IRHAR, 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 MSP430FR5725IRHAR part is unused and in its original packaging.
Return procedure for MSP430FR5725IRHAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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