My Inquiry
My Account
Texas Instruments MSP430FR5726IPWR
- Part No.:
- MSP430FR5726IPWR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 28-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430FR5726IPWR.pdf
- Description:
- IC MCU 16BIT 16KB FRAM 28TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,287
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MSP430FR5726IPWR from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller with 16KB nonvolatile memory, 1KB RAM, and integrated peripherals including a 10-bit ADC (6 external channels), 10-channel analog comparator, dual eUSCI modules (UART/I²C/SPI), RTC, five 16-bit timers, and hardware multiplier. It operates from 2 V to 3.6 V across –40°C to 85°C and targets battery-powered sensor nodes in industrial monitoring.
For engineers reviewing the MSP430FR5726IPWR datasheet, MSP430FR5726IPWR pinout, MSP430FR5726IPWR application, or MSP430FR5726IPWR equivalent, key selection criteria include FRAM endurance (10¹⁵ write cycles), LPM3.5 RTC current (1.5 µA), 24-pin TSSOP package compatibility, and absence of integrated ADC reference buffer - requiring external VREF+ sourcing for precision measurements.
Technical Context
The MSP430FR5726IPWR implements the MSP430 CPUXV2 core with seven low-power modes, leveraging FRAM for unified program/data/storage with ECC and MPU protection. Its clock system combines DCO (up to 8 MHz), VLO, LFXT (32 kHz crystal), and HFXT support - enabling precise timing control for real-time sensing tasks.
Analog subsystem includes ADC10_B with 200 ksps sampling at 100 µA, programmable hysteresis on Comp_D inputs, and independent voltage reference generation. Digital I/O supports wake-up from LPMx.5 via P1–P3 ports, while eUSCI_A0/A1 and eUSCI_B0 provide flexible serial communication with hardware UART bootloader (BSL) capability.
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 | 16KB FRAM with 10¹⁵ write endurance and 125 ns/word write speed - eliminates flash wear-out concerns and enables high-frequency data logging without erase delays. |
| ADC Resolution & Channels | 10-bit ADC10_B with 6 external + 2 internal input channels - supports simultaneous temperature/voltage monitoring in compact sensor nodes. |
| Low-Power Mode Current | LPM3.5 (RTC active with crystal): 1.5 µA typical - extends battery life to multi-year operation in always-on environmental monitors. |
| Supply Voltage Range | 2.0 V to 3.6 V - compatible with single-cell Li-ion, Li-SOCl₂, and dual-cell alkaline battery systems without external regulation. |
| Operating Temperature | –40°C to +85°C - qualified for deployment in uncontrolled industrial enclosures and outdoor metering applications. |
| eUSCI Peripherals | eUSCI_A0/A1 (UART/IrDA/SPI) and eUSCI_B0 (I²C/SPI) - enables dual-sensor interfacing (e.g., I²C temp sensor + UART telemetry) without external bus expanders. |
Pinout & Package
Package: TSSOP-28 (PW), 9.7 mm × 4.4 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 with RTC clock output | Enables direct connection to external RTC crystal load capacitors and provides calibrated clock output for system synchronization. |
| P1.1/TA0.2/TA1CLK/CDOUT/A1*/CD1/VeREF+ | Analog input / reference voltage input | Accepts external VREF+ for ADC; VeREF+ must be supplied externally since internal reference buffer is not available on MSP430FR5726IPWR. |
| P1.4/TB0.1/UCA0STE/A4*/CD4 | SPI slave transmit enable / ADC input | Configurable as SPI STE signal for daisy-chained peripheral control or as analog input A4 for multi-sensor acquisition. |
| P1.5/TB0.2/UCA0CLK/A5*/CD5 | SPI clock / ADC input | Provides master clock output in SPI master mode or serves as ADC channel A5 - supports time-multiplexed analog sampling and serial comms. |
| P2.5/TB0.0/UCA1TXD/UCA1SIMO | UART TX / SPI MOSI | Primary telemetry interface: drives UART TX line for wireless module communication or acts as SPI master out to external EEPROM/flash. |
| P2.6/TB1.0/UCA1RXD/UCA1SOMI | UART RX / SPI MISO | Receives telemetry data or reads back from SPI slaves; supports automatic baud-rate detection in UART mode for robust field firmware updates. |
| RST/NMI/SBWTDIO | Reset / NMI / Spy-Bi-Wire data I/O | Enables in-system programming and debugging via 2-wire SBW interface - no JTAG header required, reducing PCB footprint and BOM cost. |
| TEST/SBWTCK | Spy-Bi-Wire clock input | Provides synchronous clock for SBW programming; must be driven by debugger - no internal oscillator used for programming interface. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 16KB unified memory with ECC and MPU - allows safe over-the-air firmware updates and secure data logging without flash erase cycles or wear leveling. |
| Ultra-Low-Power RTC | 1.5 µA in LPM3.5 with 32-kHz crystal - delivers calendar/timekeeping with <±2 ppm accuracy over temperature, enabling precise event scheduling in energy-harvested devices. |
| Hardware Multiplier (MPY32) | 32-bit integer multiply in single cycle - accelerates sensor fusion algorithms (e.g., RMS calculation, FIR filtering) without consuming CPU bandwidth. |
| Three-Channel DMA | Enables autonomous ADC-to-FRAM transfers - frees CPU during burst sampling, reducing active-mode time and extending battery life in duty-cycled sensors. |
| Comparator_D with Hysteresis | 10-channel analog comparator with programmable hysteresis - detects threshold crossings (e.g., tamper, voltage sag) with noise immunity, eliminating need for external comparators. |
| Integrated Power Management | On-chip LDO, SVS, and zero-power brownout detection - ensures reliable reset behavior across battery discharge curves without external supervisors. |
Applications
| Smart Utility Metering | Wireless Sensor Node |
|---|---|
Use Scenario: Battery-powered gas/water meter with pulse counting, temperature compensation, and LoRaWAN telemetry. IC Role / Device Role / Timing Role: Main controller executing metrology algorithm, managing FRAM-based log storage, and driving UART-to-LoRa module interface. Use Value: 16KB FRAM enables 10+ years of hourly consumption logs; LPM3.5 RTC maintains accurate billing timestamps with 1.5 µA quiescent current. |
Use Scenario: Industrial vibration monitor using piezoelectric sensor, analog front-end, and BLE reporting. IC Role / Device Role / Timing Role: Signal acquisition controller performing ADC sampling, FFT preprocessing, and BLE packet assembly. Use Value: Hardware MPY32 accelerates spectral analysis; three-channel DMA offloads ADC→FRAM transfers, minimizing CPU wake-ups and power consumption. |
| Asset Tracking Beacon | Building Automation Controller |
Use Scenario: GPS-denied indoor asset tag using accelerometer wake-up, temperature/humidity sensing, and Bluetooth Low Energy broadcast. IC Role / Device Role / Timing Role: System manager handling motion-triggered wake-up, sensor polling, and BLE advertising interval timing. Use Value: FRAM's 10¹⁵ write endurance supports continuous sensor logging; 24-pin TSSOP enables compact PCB layout for space-constrained tags. |
Use Scenario: HVAC zone controller acquiring temperature, humidity, and CO₂ readings, then modulating valve actuators via PWM outputs. IC Role / Device Role / Timing Role: Real-time environmental supervisor coordinating ADC conversions, timer-driven PWM for actuator control, and I²C communication with display panel. Use Value: Dual eUSCI modules allow concurrent I²C display interface and UART diagnostics port; built-in RTC schedules maintenance alerts without external components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power FRAM microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR5728PW | Same 16KB FRAM, 1KB RAM, and 28-pin TSSOP package; differs in ADC configuration (6 ext/2 int vs. MSP430FR5726IPWR's 6 ext/2 int - identical), but includes full 12-channel ADC option in RHA variant (not applicable here). | Identical pinout and memory; suitable for drop-in replacement where identical ADC channel count and package are required. | Select MSP430FR5728PW only if migrating within TI's FR57xx family with identical feature set - no functional deviation from MSP430FR5726IPWR. |
| MSP430FR5969IPM | Higher integration: 64KB FRAM, 2KB RAM, enhanced ADC (12-bit, 16-channel), and integrated RC oscillator trimming; uses 48-pin QFN package - incompatible pinout and larger footprint. | Targeted at next-generation designs requiring higher memory density and precision measurement; not pin-compatible. | Choose MSP430FR5969IPM for new designs needing >16KB code space or 12-bit ADC resolution; requires PCB redesign due to different package and pin assignment. |
Compared with MSP430FR5728PW, the MSP430FR5726IPWR offers identical FRAM size, ADC channel count, and package - making it functionally interchangeable. Against MSP430FR5969IPM, it trades memory capacity and ADC resolution for smaller footprint and lower cost, better fitting constrained-space, cost-sensitive sensor endpoints.
Availability
MSP430FR5726IPWR is available at Aetrix Electronics and suitable for smart utility metering, wireless sensor node development, and building automation controllers requiring stable component supply across extended production lifecycles.
Supply support for MSP430FR5726IPWR 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 specializing in analog, embedded processing, and connectivity technologies, with decades of expertise in ultra-low-power microcontrollers.
The MSP430FR57xx family was designed specifically for energy-constrained sensing and telemetry applications, combining FRAM nonvolatility with sub-µA real-time clock operation and integrated analog peripherals to minimize external component count.
FAQ
What is the maximum operating frequency of the MSP430FR5726IPWR?
The MSP430FR5726IPWR supports a maximum system clock frequency of 8 MHz via its factory-trimmed DCO oscillator. This frequency is achievable across the full operating voltage range (2.0 V to 3.6 V) and temperature range (–40°C to +85°C), enabling deterministic real-time execution for time-critical sensor processing tasks without requiring external high-frequency crystals.
Does the MSP430FR5726IPWR include an internal voltage reference for the ADC?
The MSP430FR5726IPWR includes an internal voltage reference generator but does not integrate a reference buffer amplifier. Therefore, VeREF+ must be supplied externally when using the ADC - typically via a precision voltage reference IC or resistor divider from AVCC. This design choice reduces die area and power but requires careful external reference design for high-accuracy measurements.
How many I²C interfaces does the MSP430FR5726IPWR support?
The MSP430FR5726IPWR supports one dedicated I²C interface via eUSCI_B0, capable of standard-mode (100 kbps) and fast-mode (400 kbps) operation. It also supports multi-master arbitration and 7-bit/10-bit addressing. No second I²C peripheral is present - eUSCI_A0 and eUSCI_A1 are UART/IrDA/SPI-capable only and cannot be configured for I²C.
Is the MSP430FR5726IPWR pin-compatible with other devices in the FR57xx family?
The MSP430FR5726IPWR in the 28-pin TSSOP (PW) package shares identical pinout with MSP430FR5724PW, MSP430FR5728PW, and MSP430FR5720PW. However, it is not pin-compatible with RHA (40-pin) or DA (38-pin) variants. Functional differences - such as ADC channel count or timer configurations - remain consistent within the PW-package group, enabling hardware reuse across selected family members.
What debug interface does the MSP430FR5726IPWR use?
The MSP430FR5726IPWR uses the two-wire Spy-Bi-Wire (SBW) interface for debugging and programming, accessed via RST/NMI/SBWTDIO and TEST/SBWTCK pins. This interface replaces traditional 4-wire JTAG, reducing PCB routing complexity and connector cost while supporting full flash programming, breakpoint setting, and real-time variable inspection through Code Composer Studio™.
MSP430FR5726IPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 28-TSSOP (0.173", 4.40mm Width)
- Series:
- MSP430™ FRAM
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
MSP430FR5726IPWR FAQ
1.How can I place an order for MSP430FR5726IPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5726IPWR 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 MSP430FR5726IPWR reliable?
The price and inventory of MSP430FR5726IPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5726IPWR is usually 5 days.
3.What payment methods are accepted for MSP430FR5726IPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5726IPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5726IPWR?
MSP430FR5726IPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5726IPWR 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 MSP430FR5726IPWR?
For technical support, including MSP430FR5726IPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5726IPWR requirements.
6.How does Aetrix verify that MSP430FR5726IPWR is sourced from the original manufacturer or authorized distributors?
All MSP430FR5726IPWR 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 MSP430FR5726IPWR meets industry standards.
7.What is the process for return or replacement of MSP430FR5726IPWR?
All MSP430FR5726IPWR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5726IPWR, 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 MSP430FR5726IPWR part is unused and in its original packaging.
Return procedure for MSP430FR5726IPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MSP430FR5726IPWR 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…
