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Texas Instruments MSP430FR5728IPW
- Part No.:
- MSP430FR5728IPW
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 28-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430FR5728IPW.pdf
- Description:
- IC MCU 16BIT 16KB FRAM 28TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,536
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Product details
Overview
MSP430FR5728IPW from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 16KB ferroelectric RAM (FRAM), 1KB SRAM, 8-MHz system clock, 6-channel 10-bit ADC with internal reference, and dual eUSCI modules supporting UART, SPI, and I²C. It operates across 2 V–3.6 V and –40°C to 85°C, targeting battery-powered sensor nodes and energy-harvesting systems.
For engineers reviewing the MSP430FR5728IPW datasheet, MSP430FR5728IPW pinout, MSP430FR5728IPW application, or MSP430FR5728IPW equivalent, key selection criteria include FRAM endurance (10¹⁵ write cycles), RTC support in LPM3.5 (1.5 µA), low-power analog integration, TSSOP-28 package compatibility, and TI's MSP430FR57xx family toolchain support.
Technical Context
The MSP430FR5728IPW implements a 16-bit CPUXV2 core with seven low-power modes, including LPM4.5 (0.32 µA shutdown) and RTC-enabled LPM3.5. Its FRAM architecture eliminates erase-before-write latency and enables atomic writes without software overhead.
Analog subsystem includes a 16-channel comparator with programmable hysteresis and voltage reference generation, plus a 10-bit ADC delivering 200 ksps at 100 µA - optimized for high-resolution, low-duty-cycle sensing in constrained power budgets.
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 minimal code footprint |
| Nonvolatile Memory | 16KB FRAM with ECC and MPU - supports simultaneous read/write, 10¹⁵ write endurance, no wear leveling required |
| ADC Performance | 10-bit, 6 external + 2 internal channels, 200 ksps at 100 µA - suitable for fast, low-power analog acquisition in sensor hubs |
| Low-Power Modes | LPM3.5 (RTC active): 1.5 µA typical; LPM4.5 (shutdown): 0.32 µA - extends multi-year battery life in intermittent wake-up applications |
| Serial Interfaces | eUSCI_A0/A1 (UART/IrDA/SPI); eUSCI_B0 (I²C/SPI) - provides dual independent communication paths for sensor fusion and host interfacing |
| Supply Range | 2.0 V to 3.6 V - compatible with single-cell Li-ion, Li-SOCl₂, and energy-harvesting sources without external regulation |
| Operating Temperature | –40°C to +85°C - qualified for industrial and outdoor environmental monitoring deployments |
Pinout & Package
TSSOP-28 package (9.7 mm × 4.4 mm), thermally enhanced with exposed pad connected to DVSS. Pin count and signal mapping match TI's standard PW package footprint for drop-in compatibility within the MSP430FR57xx family.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / Non-maskable interrupt / Spy-Bi-Wire data I/O | Single-pin debug interface; enables in-system programming and real-time debugging without dedicated JTAG pins |
| TEST/SBWTCK | Spy-Bi-Wire clock input | Enables 2-wire SWD-like debug access using only two pins - reduces PCB routing complexity and cost |
| P1.0/TA0.1/DMAE0/RTCCLK | GPIO / Timer_A capture / DMA trigger / RTC clock output | Multi-function pin supports time-critical event capture, low-power RTC calibration, and autonomous peripheral triggering |
| P1.4/TB0.1/UCA0STE/A4 | GPIO / Timer_B capture / eUSCI_A0 SPI slave enable / ADC input | Enables hardware-controlled SPI slave mode and concurrent analog sampling - ideal for daisy-chained sensor interfaces |
| P2.5/TB0.0/UCA1TXD | GPIO / Timer_B capture / eUSCI_A1 UART transmit | Dedicated UART TX path allows asynchronous host communication while timers manage local timing events |
| PJ.4/XIN & PJ.5/XOUT | Crystal oscillator input/output | Supports 32-kHz crystal for precision RTC operation with ±20 ppm stability - critical for time-stamped data logging |
Key Features
| Feature | Design Value |
|---|---|
| FRAM memory architecture | Enables instant nonvolatile storage with zero write latency and no erase cycles - eliminates firmware overhead for logging and state retention |
| Hardware CRC module | Offloads checksum computation from CPU during firmware updates or data packet validation - improves system reliability and reduces active time |
| Three-channel DMA | Permits autonomous ADC-to-FRAM transfers without CPU intervention - extends sleep duration and lowers average current in sensor polling loops |
| Integrated LDO regulator | Provides stable core voltage from wide-input supply - simplifies power design and removes need for external regulators in space-constrained layouts |
| Real-time clock with calendar | Retains time/date across LPM3.5 with crystal backup - enables scheduled wake-ups and timestamped event recording without external RTC IC |
Applications
| Smart Metering Node | Wireless Sensor Hub |
|---|---|
Use Scenario: Battery-powered utility meter collecting voltage, current, and temperature at 15-minute intervals with secure firmware updates. IC Role / Device Role / Timing Role: Primary controller managing metrology ADC, secure boot, FRAM-based log storage, and AES-encrypted RF transmission via external transceiver. Use Value: 16KB FRAM stores >1 year of timestamped readings; LPM4.5 draw of 0.32 µA enables 10+ year battery life with CR2450 cell. |
Use Scenario: Multi-sensor environmental node (temp/humidity/pressure) transmitting data every 5 minutes over Sub-GHz or BLE radio. IC Role / Device Role / Timing Role: Central aggregator running sensor drivers, data fusion, and low-power scheduler; RTC triggers periodic wake-up and data consolidation. Use Value: Dual eUSCI interfaces allow simultaneous SPI to sensors and UART to radio; 200 ksps ADC supports oversampling for noise reduction without CPU load. |
| Industrial Condition Monitor | Energy-Harvesting IoT Endpoint |
Use Scenario: Vibration and temperature monitor on rotating machinery powered by primary battery with optional energy harvesting supplement. IC Role / Device Role / Timing Role: Real-time vibration analysis engine using Timer_A/B for precise pulse-width measurement and FRAM for burst-mode waveform capture. Use Value: Fast FRAM write (125 ns/word) captures transient events; built-in MPU prevents accidental corruption during brownout recovery. |
Use Scenario: Solar- or thermal-harvested endpoint powering ultra-low-duty-cycle sensing and LoRaWAN transmission. IC Role / Device Role / Timing Role: Power-aware supervisor managing energy buffer, sensor activation, and adaptive duty cycling based on harvested energy level. Use Value: Wide 2–3.6 V supply range accepts unregulated harvester output; zero-power brownout detection ensures safe reset during voltage sag. |
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 |
|---|---|---|---|
| MSP430FR5724IPW | 8KB FRAM, 6-channel ADC, same TSSOP-28 package and pinout | Lower memory capacity suits simpler sensor nodes with smaller firmware or shorter log history | Select when application requires <8KB nonvolatile storage and lower BOM cost is prioritized over future scalability |
| MSP430FR5738IPW | 16KB FRAM, 12-channel ADC, 32-pin TQFP package - not pin-compatible | Higher analog channel count and additional timers support complex multi-sensor systems requiring more peripherals | Choose when expanding to 12+ analog inputs or needing extra Timer_B instances; requires PCB redesign |
Compared with MSP430FR5724IPW, the MSP430FR5728IPW offers double FRAM capacity and identical low-power performance; versus MSP430FR5738IPW, it trades package size and analog channel count for compact TSSOP-28 integration in space-limited designs.
Availability
MSP430FR5728IPW is available at Aetrix Electronics and suitable for smart metering, wireless sensor networks, and industrial condition monitoring requiring stable component supply, long-term lifecycle assurance, and TI-qualified production-grade silicon.
Supply support for MSP430FR5728IPW 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 and industrial-grade reliability.
The MSP430FR57xx family was designed specifically for energy-constrained sensing and system management applications - combining FRAM nonvolatility, sub-µA real-time operation, and integrated analog to replace discrete memory + MCU + ADC solutions.
FAQ
What is the maximum operating frequency of the MSP430FR5728IPW?
The MSP430FR5728IPW supports a maximum system clock frequency of 8 MHz, achieved via its factory-trimmed DCO oscillator or external HFXT crystal. This speed enables responsive real-time control while maintaining ultra-low active-mode current consumption of 81.4 µA/MHz - critical for balancing performance and battery life in portable applications.
Does the MSP430FR5728IPW support hardware real-time clock (RTC) functionality?
Yes, the MSP430FR5728IPW integrates a full-featured RTC_B module with calendar, alarm, and calibration functions. When paired with a 32-kHz crystal on PJ.4/PJ.5, it maintains accurate timekeeping in LPM3.5 mode at just 1.5 µA typical - enabling time-stamped data logging and scheduled wake-up without external RTC components.
How many analog-to-digital converter (ADC) channels does the MSP430FR5728IPW have?
The MSP430FR5728IPW features a 10-bit ADC10_B module with six external analog input channels (A0–A5) and two internal references (temperature sensor and VMID). This configuration supports multi-sensor acquisition in compact designs where board space limits external ADC count.
Is the MSP430FR5728IPW pin-compatible with other devices in the MSP430FR57xx family?
The MSP430FR5728IPW in TSSOP-28 (PW) package shares identical pinout with MSP430FR5724IPW, MSP430FR5726IPW, and MSP430FR5720IPW. However, it is not pin-compatible with RHA, DA, or RGE package variants - mechanical and signal mapping differ across package types despite functional overlap.
What debug interface does the MSP430FR5728IPW use?
The MSP430FR5728IPW uses Spy-Bi-Wire (SBW), a 2-wire debug interface implemented on RST/NMI/SBWTDIO and TEST/SBWTCK pins. This eliminates the need for full 4-pin JTAG, reducing PCB footprint and test point count while supporting full flash programming, breakpoint debugging, and real-time register inspection via Code Composer Studio.
MSP430FR5728IPW 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:
- A/D 10x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR5728IPW FAQ
1.How can I place an order for MSP430FR5728IPW through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5728IPW 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 MSP430FR5728IPW reliable?
The price and inventory of MSP430FR5728IPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5728IPW is usually 5 days.
3.What payment methods are accepted for MSP430FR5728IPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5728IPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5728IPW?
MSP430FR5728IPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5728IPW 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 MSP430FR5728IPW?
For technical support, including MSP430FR5728IPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5728IPW requirements.
6.How does Aetrix verify that MSP430FR5728IPW is sourced from the original manufacturer or authorized distributors?
All MSP430FR5728IPW 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 MSP430FR5728IPW meets industry standards.
7.What is the process for return or replacement of MSP430FR5728IPW?
All MSP430FR5728IPW units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5728IPW, 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 MSP430FR5728IPW part is unused and in its original packaging.
Return procedure for MSP430FR5728IPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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