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Texas Instruments MSP430FR5725IDAR
- Part No.:
- MSP430FR5725IDAR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 38-TSSOP (0.240", 6.10mm Width)
- Datasheet:
-
MSP430FR5725IDAR.pdf
- Description:
- IC MCU 16BIT 8KB FRAM 38TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,108
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Product details
Overview
MSP430FR5725IDAR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 8KB ferroelectric RAM (FRAM), 1KB SRAM, and a 10-bit ADC with 12 external + 2 internal channels. It operates from 2 V to 3.6 V across –40°C to 85°C and supports real-time clock (RTC) functionality with calendar and alarm. It targets battery-powered sensor nodes in industrial monitoring systems requiring nonvolatile memory endurance and low active/standby current.
For engineers reviewing the MSP430FR5725IDAR datasheet, MSP430FR5725IDAR pinout, MSP430FR5725IDAR application, or MSP430FR5725IDAR equivalent, key selection criteria include FRAM write endurance (10¹⁵ cycles), RTC accuracy with crystal support, eUSCI_A0/A1 UART/IrDA/SPI and eUSCI_B0 I²C capability, and LPM3.5 current of 1.5 µA with RTC + 32-kHz crystal.
Technical Context
The MSP430FR5725IDAR integrates a 16-bit CPUXV2 core with hardware multiplier and three-channel DMA, enabling efficient signal processing in low-power sensor firmware. Its FRAM architecture eliminates erase-before-write latency and supports simultaneous read/write operations without wear leveling overhead.
It features dual enhanced universal serial communication interfaces (eUSCI_A0/A1 for UART/IrDA/SPI; eUSCI_B0 for I²C/SPI), five 16-bit timers (including Timer_A with two 3-CC instances and Timer_B with three 3-CC instances), and a 16-channel analog comparator with programmable hysteresis - all optimized for deterministic timing in event-driven sensing applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| FRAM Size | 8 KB - Nonvolatile program/data storage with 125 ns/word write speed and no erase cycle required. |
| CPU Speed | Up to 8 MHz - Enables real-time control loops and fast ADC sampling at 200 ksps with 100 µA active current. |
| ADC Resolution | 10-bit - Supports precision sensor digitization across 12 external + 2 internal analog inputs. |
| LPM3.5 Current | 1.5 µA (typ.) - Enables years of operation on coin-cell batteries when paired with 32-kHz crystal and RTC. |
| eUSCI Interfaces | 2 × eUSCI_A (UART/IrDA/SPI), 1 × eUSCI_B (I²C/SPI) - Provides flexible wired connectivity without external level shifters. |
| Operating Voltage | 2.0 V to 3.6 V - Compatible with single-cell Li-ion, Li-SOCl₂, and alkaline battery systems. |
| Temperature Range | –40°C to +85°C - Qualified for industrial and outdoor environmental monitoring deployments. |
Pinout & Package
Package: TSSOP-38 (DA package), 12.5 mm × 6.2 mm body size, exposed thermal pad recommended to be connected to DVSS.
| 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. |
| P1.1/TA0.2/TA1CLK/CDOUT/A1*/CD1/VeREF+ | Multi-function I/O | ADC reference voltage input (VeREF+), comparator output, and TA0/TA1 clock source. |
| P1.4/TB0.1/UCA0STE/A4*/CD4 | Multi-function I/O | Slave transmit enable for eUSCI_A0 SPI, ADC channel A4 input, and TB0 capture/compare input. |
| P2.5/TB0.0/UCA1TXD/UCA1SIMO | Multi-function I/O | Transmit data for eUSCI_A1 UART, master-out/slave-in for eUSCI_A1 SPI, and TB0 capture/compare input. |
| P2.6/TB1.0/UCA1RXD/UCA1SOMI | Multi-function I/O | Receive data for eUSCI_A1 UART, master-in/slave-out for eUSCI_A1 SPI, and TB1 capture/compare input. |
| PJ.4/XIN & PJ.5/XOUT | Clock Input/Output | Connects to external 32-kHz crystal for RTC operation with ±20 ppm stability over temperature. |
| RST/NMI/SBWTDIO | Reset/Debug | Active-low reset, non-maskable interrupt, and bidirectional Spy-Bi-Wire debug interface pin. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 8 KB nonvolatile memory with 10¹⁵ write cycles, zero write latency, and immunity to radiation-induced bit flips. |
| Real-Time Clock (RTC_B) | Calendar mode with alarm, prescaler, and 32-kHz crystal support - enables precise time-stamped sensor logging. |
| Ultra-Low-Power Modes | LPM3.5 draws only 1.5 µA with RTC active; LPM4.5 shutdown consumes 0.32 µA - extends battery life by >10× vs flash-based MCUs. |
| Hardware Acceleration | 32-bit hardware multiplier and three-channel DMA offload CPU during math-intensive sensor fusion or filtering tasks. |
| Analog Integration | 16-channel comparator with internal reference and hysteresis, plus 10-bit ADC with sample-and-hold - reduces external component count. |
Applications
| Smart Utility Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Battery-powered gas/water meter with hourly pulse counting, temperature compensation, and wireless reporting. IC Role / Device Role / Timing Role: Primary system controller managing pulse capture via GPIO interrupts, RTC-triggered ADC reads, and FRAM-based data logging. Use Value: 8 KB FRAM stores 30+ days of timestamped consumption data without wear degradation; LPM3.5 enables 10-year battery life. |
Use Scenario: Wireless vibration/temperature node on rotating machinery with predictive maintenance analytics. IC Role / Device Role / Timing Role: Signal acquisition controller using ADC oversampling, FFT preprocessing via hardware multiplier, and RTC-synchronized wake-up. Use Value: Simultaneous ADC sampling and FRAM write avoids data loss during burst capture; 1.5 µA LPM3.5 minimizes self-heating in sealed enclosures. |
| Building Automation Controller | Environmental Monitoring Beacon |
|
Use Scenario: Occupancy-aware HVAC zone controller with CO₂, humidity, and motion sensing. IC Role / Device Role / Timing Role: Central sensor hub interfacing I²C sensors (eUSCI_B0), driving local displays via GPIO, and scheduling periodic BLE advertisements. Use Value: Dual eUSCI_A ports support UART debug and IrDA remote configuration; FRAM enables rapid firmware updates without erase delays. |
Use Scenario: Solar-powered outdoor air quality station measuring PM2.5, NO₂, and ambient temperature/humidity. IC Role / Device Role / Timing Role: Power-gated system manager that wakes every 15 minutes to acquire sensor data, compute averages, and store results. Use Value: 0.32 µA LPM4.5 shutdown preserves energy between measurements; built-in SVS ensures reliable brownout recovery during solar intermittency. |
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 |
|---|---|---|---|
| MSP430FR5729IDAR | 16 KB FRAM, same peripherals and pinout in RHA/DA packages; higher memory density. | Preferred where extended data logging or larger firmware image is required. | Select when >8 KB nonvolatile storage is needed without changing PCB layout. |
| MSP430FR5739IPW | Same FRAM size (8 KB), but adds integrated RF front-end (sub-GHz transceiver) and 28-pin PW package. | Suitable for compact, wireless sensor endpoints needing direct RF transmission. | Choose when replacing wired sensor nodes with battery-operated LoRa/proprietary RF links. |
Compared with MSP430FR5729IDAR, the MSP430FR5725IDAR trades 8 KB FRAM capacity for identical low-power performance and peripheral set in the same DA package footprint; versus MSP430FR5739IPW, it omits RF but offers full 38-pin I/O access and broader analog integration for wired sensor aggregation.
Availability
MSP430FR5725IDAR is available at Aetrix Electronics and suitable for smart utility metering, industrial sensor nodes, building automation controllers, and environmental monitoring beacons requiring stable component supply and long-term manufacturability.
Supply support for MSP430FR5725IDAR 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 and embedded processing solutions, with decades of expertise in ultra-low-power microcontrollers and precision analog signal chains.
The MSP430FR57xx family was designed specifically for energy-constrained sensing and system management applications in building automation, smart grid infrastructure, and industrial IoT edge nodes - prioritizing FRAM reliability, sub-µA sleep modes, and integrated analog front-ends.
FAQ
What is the maximum operating frequency of the MSP430FR5725IDAR?
The MSP430FR5725IDAR supports a system clock up to 8 MHz, derived from its factory-trimmed DCO or external crystals (LFXT/HFXT). This frequency enables real-time execution of sensor fusion algorithms and high-speed ADC sampling at 200 ksps while maintaining ultra-low power consumption in active mode (81.4 µA/MHz typical).
Does the MSP430FR5725IDAR support real-time clock functionality with calendar mode?
Yes, the MSP430FR5725IDAR includes the RTC_B module with full calendar mode (year/month/day/hour/minute/second), alarm registers, and automatic leap-year correction. When paired with a 32-kHz crystal on PJ.4/PJ.5, it achieves 1.5 µA typical current in LPM3.5 - making it ideal for time-stamped data logging in battery-powered devices.
How much FRAM and SRAM does the MSP430FR5725IDAR integrate?
The MSP430FR5725IDAR integrates 8 KB of ferroelectric RAM (FRAM) for nonvolatile code and data storage, and 1 KB of volatile SRAM for runtime variables and stack. The FRAM supports 10¹⁵ write cycles, 125 ns per word write speed, and built-in ECC - eliminating flash erase limitations while enabling true "universal memory" usage.
Which communication interfaces are available on the MSP430FR5725IDAR?
The MSP430FR5725IDAR provides two eUSCI_A modules (eUSCI_A0 and eUSCI_A1) supporting UART, IrDA, and SPI, plus one eUSCI_B module (eUSCI_B0) supporting I²C and SPI. These interfaces operate independently, allowing concurrent wired sensor communication (e.g., I²C temperature sensor + UART debug + SPI FRAM expansion) without CPU intervention.
What low-power modes are supported by the MSP430FR5725IDAR, and what are their typical currents?
The MSP430FR5725IDAR supports seven low-power modes. Key examples include LPM3 with VLO (6.3 µA), LPM3.5 with 32-kHz crystal and RTC active (1.5 µA), and LPM4.5 shutdown (0.32 µA). These modes are controlled via the PMM and allow rapid wake-up (<1 µs from LPM0) - critical for duty-cycled sensor applications demanding multi-year battery life.
MSP430FR5725IDAR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 38-TSSOP (0.240", 6.10mm Width)
- 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:
- 30
- 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:
MSP430FR5725IDAR FAQ
1.How can I place an order for MSP430FR5725IDAR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5725IDAR 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 MSP430FR5725IDAR reliable?
The price and inventory of MSP430FR5725IDAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5725IDAR is usually 5 days.
3.What payment methods are accepted for MSP430FR5725IDAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5725IDAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5725IDAR?
MSP430FR5725IDAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5725IDAR 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 MSP430FR5725IDAR?
For technical support, including MSP430FR5725IDAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5725IDAR requirements.
6.How does Aetrix verify that MSP430FR5725IDAR is sourced from the original manufacturer or authorized distributors?
All MSP430FR5725IDAR 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 MSP430FR5725IDAR meets industry standards.
7.What is the process for return or replacement of MSP430FR5725IDAR?
All MSP430FR5725IDAR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5725IDAR, 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 MSP430FR5725IDAR part is unused and in its original packaging.
Return procedure for MSP430FR5725IDAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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