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Texas Instruments MSP430FR5726IPW
- Part No.:
- MSP430FR5726IPW
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 28-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430FR5726IPW.pdf
- Description:
- IC MCU 16BIT 16KB FRAM 28TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,564
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Product details
Overview
MSP430FR5726IPW from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 16KB ferroelectric RAM (FRAM), 1KB SRAM, 8-MHz system clock, 10-bit ADC with 12 external channels, and 10-channel analog comparator. It operates across 2 V–3.6 V supply and –40°C to 85°C, targeting battery-powered sensor nodes and data acquisition systems.
For engineers reviewing the MSP430FR5726IPW datasheet, MSP430FR5726IPW pinout, MSP430FR5726IPW application, or MSP430FR5726IPW equivalent, key selection criteria include FRAM endurance (10¹⁵ writes), RTC support in LPM3.5 (1.5 µA), eUSCI_A0/A1 UART/IrDA/SPI, eUSCI_B0 I²C/SPI, and TSSOP-28 package compatibility with space-constrained industrial sensing designs.
Technical Context
The MSP430FR5726IPW implements a 16-bit CPUXV2 core with hardware multiplier and three-channel DMA, enabling efficient signal processing in low-power modes. Its FRAM memory architecture eliminates write latency and wear leveling overhead while supporting simultaneous read/write operations.
It integrates dual enhanced USCI modules: eUSCI_A0/A1 each support UART with auto-baud detection and IrDA encoding/decoding, while eUSCI_B0 supports I²C with multi-slave addressing and SPI-enabling robust communication in noisy industrial environments without external level shifters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit CPUXV2 RISC, up to 8-MHz operation for deterministic real-time control |
| Nonvolatile Memory | 16KB FRAM with ECC and MPU-enables instant write, 10¹⁵ cycle endurance, no erase before write |
| ADC | 10-bit SAR ADC with 12 external + 2 internal channels, 200 ksps at 100 µA-supports high-speed sensor sampling |
| Low-Power Modes | LPM3.5 (RTC + crystal): 1.5 µA; LPM4.5 (shutdown): 0.32 µA-extends coin-cell battery life to years |
| Communication Peripherals | eUSCI_A0/A1 (UART/IrDA/SPI); eUSCI_B0 (I²C/SPI)-dual serial interfaces for sensor hub and host connectivity |
| Package | TSSOP-28 (9.7 mm × 4.4 mm)-surface-mount compatible with automated PCB assembly |
| Operating Voltage | 2.0 V to 3.6 V-direct interface with Li-ion, Li-SOCl₂, and 2×AA battery stacks |
Pinout & Package
TSSOP-28 (PW) package with exposed thermal pad recommended for connection to DVSS. Pin count and I/O mapping match TI's standardized MSP430FR572x PW footprint.
| 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 |
| P1.1/TA0.2/TA1CLK/CDOUT/A1*/CD1/VeREF+ | Multi-function I/O | ADC reference input (VeREF+), comparator output, TA0/TA1 clock source, and ADC channel A1 |
| P1.4/TB0.1/UCA0STE/A4*/CD4 | Multi-function I/O | eUSCI_A0 SPI slave transmit enable, ADC channel A4, and comparator CD4 input |
| P1.5/TB0.2/UCA0CLK/A5*/CD5 | Multi-function I/O | eUSCI_A0 SPI clock (master out/slave in), ADC channel A5, and comparator CD5 input |
| P2.5/TB0.0/UCA1TXD/UCA1SIMO | Multi-function I/O | eUSCI_A1 UART transmit / SPI master-out-slave-in, TB0 capture/compare input |
| P2.6/TB1.0/UCA1RXD/UCA1SOMI | Multi-function I/O | eUSCI_A1 UART receive / SPI master-in-slave-out, TB1 capture/compare input |
| RST/NMI/SBWTDIO | Reset & debug | Active-low reset, non-maskable interrupt, and Spy-Bi-Wire bidirectional debug I/O |
| TEST/SBWTCK | Debug clock | Spy-Bi-Wire test clock input for programming and emulation without JTAG header |
Key Features
| Feature | Design Value |
|---|---|
| FRAM memory architecture | Enables zero-wait-state writes at 125 ns/word and eliminates flash erase cycles-critical for logging burst sensor data |
| Hardware CRC module | Offloads checksum computation from CPU, ensuring data integrity in firmware updates and sensor packet transmission |
| Real-Time Clock (RTC) with calendar | Operates in LPM3.5 at 1.5 µA using 32-kHz crystal-provides time-stamped sensor readings without waking CPU |
| Three 16-bit timers (Timer_A ×2, Timer_B ×1) | Supports simultaneous PWM generation, input capture, and interval timing-ideal for motor control and pulse-width measurement |
| Integrated LDO and SVS | On-chip voltage regulation and supply voltage supervisor with reset-reduces BOM count and improves brownout resilience |
Applications
| Smart Metering Node | Wireless Sensor Transmitter |
|---|---|
Use Scenario: Battery-powered electricity/water meter collecting pulse counts and temperature every 15 minutes. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing FRAM-based data logging, and driving RF wake-up via RTC alarm. Use Value: 1.5 µA RTC current extends 2-AA battery life beyond 10 years; FRAM enables atomic write of timestamped consumption records. | Use Scenario: Industrial vibration sensor node transmitting FFT-derived health metrics over sub-GHz RF every hour. IC Role / Device Role / Timing Role: Signal acquisition controller running ADC-triggered DMA transfers to FRAM, then initiating RF transmission in active mode. Use Value: 200 ksps ADC captures high-fidelity waveforms; 10¹⁵ FRAM write cycles ensure reliable lifetime logging under continuous monitoring. |
| Building Automation Controller | Portable Data Logger |
Use Scenario: HVAC zone controller reading temperature/humidity sensors, driving relays, and communicating via I²C to gateway MCU. IC Role / Device Role / Timing Role: Local decision engine using comparator_D for fast threshold detection and eUSCI_B0 for I²C slave communication. Use Value: 16-channel comparator with programmable hysteresis eliminates external comparators; I²C multi-address support simplifies bus topology. | Use Scenario: Handheld environmental logger recording CO₂, light, and pressure at user-defined intervals during field surveys. IC Role / Device Role / Timing Role: Human-interface MCU managing button inputs, LCD refresh, and FRAM-backed circular buffer storage. Use Value: TSSOP-28 footprint fits compact enclosures; 32 general-purpose I/O pins support diverse sensor interfaces and status LEDs. |
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 |
|---|---|---|---|
| MSP430FR5728PW | Same FRAM/SRAM/clock; 6 external ADC channels vs. 12 on MSP430FR5726IPW; identical TSSOP-28 package | Reduced analog channel count limits multi-sensor front-end use; suitable for simpler sensing tasks | Select when fewer ADC inputs are needed and cost optimization is prioritized over channel flexibility |
| MSP430FR5969IPM | Higher FRAM (64KB), integrated AES accelerator, 48-pin QFN; no RTC in LPM3.5 (uses VLO only) | Better security and memory for firmware-over-the-air; lacks crystal-based RTC precision for time-critical logging | Choose for secure wireless edge nodes requiring encryption; avoid if sub-second RTC accuracy with crystal is mandatory |
Compared with MSP430FR5728PW and MSP430FR5969IPM, the MSP430FR5726IPW uniquely balances 12-channel ADC capability, crystal-backed RTC in LPM3.5, and TSSOP-28 footprint-making it optimal for cost-sensitive, space-constrained, time-aware sensor endpoints.
Availability
MSP430FR5726IPW is available at Aetrix Electronics and suitable for smart metering, industrial sensor management, and portable data acquisition requiring stable component supply and long-term manufacturability.
Supply support for MSP430FR5726IPW 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 for industrial, automotive, and consumer markets.
The MSP430FR572x product line was designed for ultra-low-power sensing and system management in building automation, smart grid, and industrial IoT-leveraging FRAM to eliminate flash write bottlenecks in battery-operated endpoints.
FAQ
What is the maximum ADC sampling rate supported by the MSP430FR5726IPW?
The MSP430FR5726IPW supports a maximum ADC sampling rate of 200 ksps at 100 µA supply current. This performance is achieved using the 10-bit SAR ADC with internal reference and sample-and-hold circuitry, enabling high-fidelity acquisition of fast-changing sensor signals while maintaining ultra-low power consumption in active mode.
Does the MSP430FR5726IPW support real-time clock operation with external 32-kHz crystal in low-power mode?
Yes, the MSP430FR5726IPW supports real-time clock (RTC) operation with an external 32-kHz crystal in LPM3.5 mode at a typical current draw of 1.5 µA. This configuration provides calendar functionality, alarm interrupts, and precise timekeeping without waking the CPU-essential for time-stamped data logging in battery-powered applications.
How many eUSCI modules does the MSP430FR5726IPW integrate, and what protocols do they support?
The MSP430FR5726IPW integrates three eUSCI modules: eUSCI_A0 and eUSCI_A1 each support UART with automatic baud-rate detection and IrDA encoding/decoding, plus SPI; eUSCI_B0 supports I²C with multi-slave addressing and SPI. These interfaces enable concurrent communication with sensors, gateways, and debug tools without protocol conflict.
What is the FRAM endurance specification for the MSP430FR5726IPW, and how does it compare to flash memory?
The MSP430FR5726IPW features 10¹⁵ write cycle endurance for its 16KB FRAM-orders of magnitude higher than typical flash memory (10⁴–10⁵ cycles). Unlike flash, FRAM requires no erase-before-write, supports byte-level writes, and operates with zero write latency, making it ideal for frequent data logging and firmware updates in the MSP430FR5726IPW.
Is the MSP430FR5726IPW pin-compatible with other devices in the MSP430FR572x family in the same TSSOP-28 package?
Yes, the MSP430FR5726IPW shares identical pinout and electrical characteristics with MSP430FR5728PW in the TSSOP-28 (PW) package. Both devices support the same peripheral mappings and I/O functions on each pin, enabling direct substitution where ADC channel count and timer configuration requirements align.
MSP430FR5726IPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 28-TSSOP (0.173", 4.40mm Width)
- Series:
- MSP430™ FRAM
- Packaging:
- Tube
- 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:
- 21
- 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:
MSP430FR5726IPW FAQ
1.How can I place an order for MSP430FR5726IPW through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5726IPW 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 MSP430FR5726IPW reliable?
The price and inventory of MSP430FR5726IPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5726IPW is usually 5 days.
3.What payment methods are accepted for MSP430FR5726IPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5726IPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5726IPW?
MSP430FR5726IPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5726IPW 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 MSP430FR5726IPW?
For technical support, including MSP430FR5726IPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5726IPW requirements.
6.How does Aetrix verify that MSP430FR5726IPW is sourced from the original manufacturer or authorized distributors?
All MSP430FR5726IPW 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 MSP430FR5726IPW meets industry standards.
7.What is the process for return or replacement of MSP430FR5726IPW?
All MSP430FR5726IPW units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5726IPW, 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 MSP430FR5726IPW part is unused and in its original packaging.
Return procedure for MSP430FR5726IPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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