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Texas Instruments MSP430FR5724IPWR
- Part No.:
- MSP430FR5724IPWR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 28-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430FR5724IPWR.pdf
- Description:
- IC MCU 16BIT 8KB FRAM 28TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,731
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Product details
Overview
MSP430FR5724IPWR from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller with 8 KB nonvolatile memory, 1 KB SRAM, and integrated 10-bit ADC (6 external + 2 internal channels), 16-channel comparator, dual eUSCI modules (UART/I²C/SPI), and five 16-bit timers - designed for battery-powered sensor management and data acquisition in industrial and building automation systems.
For engineers reviewing the MSP430FR5724IPWR datasheet, MSP430FR5724IPWR pinout, MSP430FR5724IPWR application, or MSP430FR5724IPWR equivalent, key selection criteria include FRAM endurance (1015 write cycles), LPM3.5 RTC current (1.5 µA), 2–3.6 V supply range, 24-pin TSSOP package compatibility, and peripheral mix supporting low-duty-cycle sensing with fast wake-up and zero-external-voltage programming.
Technical Context
The MSP430FR5724IPWR implements the MSP430xV2 CPU core with unified FRAM memory architecture enabling simultaneous read/write, hardware CRC engine for data integrity, and three-channel DMA to offload CPU during ADC or serial transfers. Its clock system integrates DCO (up to 8 MHz), VLO, LFXT (32 kHz crystal), and HFXT support - all managed via PMM with SVS and BOR for robust operation across temperature and voltage variation.
Peripherals are tightly coupled to low-power modes: eUSCI_A0/A1 and eUSCI_B0 retain functionality in LPM3, RTC operates with crystal in LPM3.5, and comparator_D supports windowed wake-up without CPU intervention. The device lacks Timer_B instances beyond TB0, distinguishing it from higher-pin-count variants like MSP430FR5729.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| FRAM Size | 8 KB - unified nonvolatile memory for code, data, and logging; eliminates flash erase latency and enables byte-level writes. |
| SRAM Size | 1 KB - volatile working memory for stack, variables, and real-time buffers; retained in LPM3/LPM3.5. |
| ADC Resolution & Channels | 10-bit, 6 external + 2 internal analog inputs - supports direct sensor interfacing with internal reference and sample-and-hold. |
| Ultra-Low-Power Modes | LPM3.5 (RTC + crystal): 1.5 µA typical - enables calendar-based wake-up with sub-µA quiescent current. |
| Supply Voltage Range | 2.0 V to 3.6 V - compatible with single-cell Li-ion, Li-SOCl₂, and dual-cell alkaline battery systems. |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments including HVAC controls and metering endpoints. |
| Max System Clock | 8 MHz - sufficient for real-time sensor fusion, UART communication at 115.2 kbps, and periodic ADC sampling at 200 ksps. |
Pinout & Package
Package: 24-pin TSSOP (PW), 9.7 mm × 4.4 mm body, 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 | Primary RTC calibration output, ADC channel A0 input, comparator CD0, and DMA trigger source - critical for time-synchronized sensing. |
| P1.1/TA0.2/TA1CLK/CDOUT/A1*/CD1/VeREF+ | Multi-function I/O | ADC reference input (VeREF+), comparator output, and timer clock source - enables precision ratiometric measurements. |
| P1.3/TA1.2/UCB0STE/A3*/CD3 | Multi-function I/O | eUSCI_B0 SPI slave transmit enable and ADC channel A3 input - supports daisy-chained sensor networks. |
| P1.4/TB0.1/UCA0STE/A4*/CD4 | Multi-function I/O | eUSCI_A0 SPI slave transmit enable and ADC channel A4 input - allows concurrent serial control and analog monitoring. |
| P1.5/TB0.2/UCA0CLK/A5*/CD5 | Multi-function I/O | eUSCI_A0 SPI clock (master/slave) and ADC channel A5 input - synchronizes external peripherals while acquiring analog data. |
| PJ.0/TDO/TB0OUTH/SMCLK/CD6 | Multi-function I/O | JTAG test data output, SMCLK output, and comparator CD6 input - enables debug visibility and clock distribution to external logic. |
| RST/NMI/SBWTDIO | Reset & Debug | Three-in-one pin: reset assertion, non-maskable interrupt, and Spy-Bi-Wire bidirectional debug I/O - reduces PCB footprint vs. dedicated JTAG. |
| TEST/SBWTCK | Debug Clock | Spy-Bi-Wire clock input only - enables single-wire debugging without external programmer voltage. |
| DVCC / DVSS | Power Supply | Digital core supply (2.0–3.6 V) and ground - decoupling required per TI layout guidelines to maintain LPM stability. |
| AVCC / AVSS | Analog Supply | Separate analog power and ground pins - must be filtered independently to preserve ADC and comparator accuracy. |
| PJ.4/XIN & PJ.5/XOUT | Clock Input/Output | Crystal oscillator terminals for 32 kHz LFXT - required for RTC operation in LPM3.5 with 1.5 µA current. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 8 KB nonvolatile memory with 1015 write endurance, 125 ns word write time, and built-in ECC - enables reliable data logging without wear leveling. |
| Real-Time Clock (RTC_B) | Calendar mode with alarm, calibration, and LPM3.5 operation at 1.5 µA - supports time-stamped sensor events with no external RTC chip. |
| Enhanced USCI Peripherals | eUSCI_A0 (UART/IrDA/SPI) + eUSCI_A1 (UART/SPI) + eUSCI_B0 (I²C/SPI) - provides flexible connectivity for multi-protocol sensor hubs. |
| Low-Power Analog Subsystem | 16-channel comparator with programmable hysteresis and internal voltage reference - enables autonomous threshold detection and wake-up. |
| Hardware Acceleration | 32-bit hardware multiplier and 16-bit CRC engine - accelerates signal processing and ensures firmware/data integrity without CPU load. |
Applications
| Smart Meter Sensor Node | Wireless HVAC Controller |
|---|---|
|
Use Scenario: Battery-powered endpoint collecting temperature, humidity, and flow data every 15 minutes, transmitting via UART to LPWAN module. IC Role / Device Role / Timing Role: Main controller executing sensor polling, FRAM-based circular buffer storage, RTC-triggered wake-up, and UART packet framing. Use Value: 1.5 µA LPM3.5 current extends 2-AA battery life to >10 years; FRAM enables instant logging of transient events without flash wear concerns. |
Use Scenario: Wall-mounted thermostat using thermistor and occupancy sensor to modulate HVAC actuator via I²C. IC Role / Device Role / Timing Role: System manager handling analog sensing, PID computation, I²C communication with valve driver, and user interface timing. Use Value: Integrated 10-bit ADC with internal reference eliminates external precision references; comparator_D enables motion-triggered display wake-up. |
| Industrial Asset Monitor | Security Sensor Hub |
|
Use Scenario: Vibration and temperature monitor on rotating machinery, logging FFT coefficients to FRAM before wireless upload. IC Role / Device Role / Timing Role: Real-time data acquisition engine with DMA-driven ADC, hardware multiplier for FFT pre-processing, and FRAM scratchpad. Use Value: 200 ksps ADC sampling at 100 µA enables high-fidelity vibration capture; FRAM's fast write speed avoids data loss during burst acquisition. |
Use Scenario: Door/window contact, PIR, and glass-break sensor aggregator sending alerts via UART to security panel. IC Role / Device Role / Timing Role: Low-power event concentrator using comparator_D for analog sensor thresholds and GPIO for digital sensors. Use Value: Programmable hysteresis on comparator_D prevents false triggers from noise; LPM4.5 shutdown (0.32 µA) minimizes standby drain between events. |
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 |
|---|---|---|---|
| MSP430FR5728IPW | 16 KB FRAM, 6 external ADC channels, same 24-pin TSSOP package and peripheral set. | Higher nonvolatile storage capacity for extended data logging or larger firmware images. | Select when firmware size exceeds 8 KB or long-term sensor history retention is required. |
| MSP430FR5739IRHA | 16 KB FRAM, 12 external ADC channels, 40-pin RHA package, adds Timer_B instances and more I/O. | Supports complex multi-sensor systems requiring additional analog inputs, PWM outputs, or SPI/I²C slaves. | Select when expanding I/O count, adding motor control, or needing full 12-channel ADC capability. |
Compared with MSP430FR5724IPWR, MSP430FR5728IPW offers double FRAM capacity in identical packaging for seamless upgrade, while MSP430FR5739IRHA trades compactness for expanded analog and timing resources - making MSP430FR5724IPWR optimal for cost- and space-constrained sensor nodes where 8 KB FRAM suffices.
Availability
MSP430FR5724IPWR is available at Aetrix Electronics and suitable for smart metering, industrial asset monitoring, and wireless HVAC control applications requiring stable component supply, long-lifecycle assurance, and consistent FRAM-based firmware update capability.
Supply support for MSP430FR5724IPWR 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 with emphasis on energy efficiency, reliability, and system integration.
The MSP430FR57xx family was engineered specifically for ultra-low-power sensing and system management in building automation, smart grid infrastructure, and industrial IoT endpoints - leveraging FRAM to eliminate flash limitations in battery-operated devices.
FAQ
What is the maximum operating frequency of the MSP430FR5724IPWR?
The MSP430FR5724IPWR supports a maximum system clock frequency of 8 MHz, achieved via its factory-trimmed DCO oscillator. This frequency is sufficient for real-time sensor processing, UART communication at standard baud rates (e.g., 115.2 kbps), and ADC sampling up to 200 ksps. The device maintains timing accuracy across its full –40°C to +85°C operating range without external crystal dependency for core operation.
Does the MSP430FR5724IPWR support hardware UART bootloading?
Yes, the MSP430FR5724IPWR includes a factory-programmed hardware UART bootloader (BSL) accessible via eUSCI_A0 or eUSCI_A1. It requires no external voltage supply and supports firmware updates over UART using standard TI BSL protocols. The BSL resides in ROM and remains functional even if user code is corrupted, enabling field recovery without JTAG hardware.
How many ADC channels does the MSP430FR5724IPWR support, and what types are available?
The MSP430FR5724IPWR integrates a 10-bit ADC10_B module with six external analog input channels (A0–A5) and two internal channels (temperature sensor and VMID). It supports internal reference (1.5 V or 2.5 V), sample-and-hold, and configurable conversion sequences - enabling direct connection to resistive sensors, thermistors, and voltage dividers without external signal conditioning.
What low-power modes are available on the MSP430FR5724IPWR, and what is the lowest active current?
The MSP430FR5724IPWR offers seven low-power modes (LPM0–LPM4.5). Active mode current is 81.4 µA/MHz (typical); LPM3 (VLO-based) draws 6.3 µA; LPM3.5 (RTC + 32-kHz crystal) draws 1.5 µA; and LPM4.5 (shutdown) draws 0.32 µA. These values are measured at 3 V and 25°C per SLASE35C datasheet Section 5.5.
Is the MSP430FR5724IPWR pin-compatible with other devices in the MSP430FR57xx family?
The MSP430FR5724IPWR uses the 24-pin TSSOP (PW) package and shares pinout compatibility with MSP430FR5720IPW, MSP430FR5722IPW, MSP430FR5726IPW, and MSP430FR5728IPW. All share identical terminal numbering, power, ground, and primary peripheral mappings - enabling drop-in replacement within the PW-package subset when FRAM size or ADC channel count permits.
MSP430FR5724IPWR 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:
- 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:
- 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 10x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR5724IPWR FAQ
1.How can I place an order for MSP430FR5724IPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5724IPWR 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 MSP430FR5724IPWR reliable?
The price and inventory of MSP430FR5724IPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5724IPWR is usually 5 days.
3.What payment methods are accepted for MSP430FR5724IPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5724IPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5724IPWR?
MSP430FR5724IPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5724IPWR 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 MSP430FR5724IPWR?
For technical support, including MSP430FR5724IPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5724IPWR requirements.
6.How does Aetrix verify that MSP430FR5724IPWR is sourced from the original manufacturer or authorized distributors?
All MSP430FR5724IPWR 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 MSP430FR5724IPWR meets industry standards.
7.What is the process for return or replacement of MSP430FR5724IPWR?
All MSP430FR5724IPWR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5724IPWR, 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 MSP430FR5724IPWR part is unused and in its original packaging.
Return procedure for MSP430FR5724IPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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