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Texas Instruments MSP430FR5730IPWR
- Part No.:
- MSP430FR5730IPWR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 28-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430FR5730IPWR.pdf
- Description:
- IC MCU 16BIT 4KB FRAM 28TSSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MSP430FR5730IPWR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 4KB FRAM nonvolatile memory, 1KB RAM, and integrated peripherals including a 10-bit ADC (6 external channels), 10-channel analog comparator, three eUSCI modules (two UART/IrDA/SPI, one I²C/SPI), five 16-bit timers, RTC with calendar, 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 systems.
For engineers reviewing the MSP430FR5730IPWR datasheet, MSP430FR5730IPWR pinout, MSP430FR5730IPWR application, or MSP430FR5730IPWR equivalent, key selection criteria include FRAM endurance (10¹⁵ write cycles), LPM3.5 RTC current (1.5 µA), 8-MHz DCO clock accuracy, TSSOP-28 package compatibility, and absence of internal HFXT support-requiring external crystal for high-frequency timing.
Technical Context
The MSP430FR5730IPWR implements the MSP430 CPUXV2 core with seven low-power modes, leveraging FRAM for unified program/data/storage with ECC and MPU protection. Its power management includes an integrated LDO, SVS with reset, and zero-power brownout detection-enabling reliable operation in energy-constrained deployments.
Peripherals are tightly coupled via three-channel DMA and synchronized to multiple clock domains (MCLK, SMCLK, ACLK). The device lacks HFXT oscillator circuitry, limiting crystal-based system clocks to LFXT (32 kHz) only; high-speed timing requires DCO calibration or external clock injection into XT1 pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| FRAM Size | 4 KB - Unified nonvolatile memory for code, data, and logging without erase cycles or wear leveling overhead. |
| RAM Size | 1 KB - Retained in LPM3; supports real-time data buffering during ultra-low-power sleep states. |
| ADC Resolution | 10-bit - Delivers 1 LSB = ~3.9 mV at 4-V reference; supports 200 ksps sampling at 100 µA typical current draw. |
| LPM3.5 Current | 1.5 µA - Enables calendar-driven wake-up from deep sleep using 32-kHz crystal, critical for multi-year battery life. |
| Max System Clock | 8 MHz - Achieved via factory-trimmed DCO; no internal HFXT, so external 32-kHz crystal required for RTC and precise low-frequency timing. |
| Package | TSSOP-28 - 9.7 mm × 4.4 mm footprint; compatible with standard reflow profiles and automated assembly. |
| I/O Count | 21 GPIO - Includes interrupt-capable pins with wake-up from all LPMx.5 modes; PJ.x pins support JTAG/SBW debug interface. |
Pinout & Package
TSSOP-28 package with exposed thermal pad recommended for connection to DVSS. Pin functions validated per TI SLASE35C Rev. December 2017, Section 4.4 (PW package diagram) and Table 4-1 signal descriptions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0.1/DMAE0/RTCCLK/A0*/CD0/VeREF- | GPIO / Timer_A0 capture / RTC cal output / ADC input / Comparator input | Primary wake-up pin with RTC clock output capability; supports analog sensing and event-triggered DMA transfers. |
| P1.1/TA0.2/TA1CLK/CDOUT/A1*/CD1/VeREF+ | GPIO / Timer_A0 compare / Timer_A1 clock / Comparator output / ADC reference input | Enables dual-role analog reference routing and synchronized timer chaining for PWM or capture sequences. |
| P1.4/TB0.1/UCA0STE/A4*/CD4 | GPIO / Timer_B0 capture / eUSCI_A0 SPI slave enable / ADC input / Comparator input | Configurable as SPI chip select or analog channel-supports concurrent serial comms and sensor acquisition. |
| P2.5/TB0.0/UCA1TXD/UCA1SIMO | GPIO / Timer_B0 capture / eUSCI_A1 UART TX / SPI master out | Dual-function pin for asynchronous communication or time-stamped event capture; no hardware flow control. |
| RST/NMI/SBWTDIO | Reset / Non-maskable interrupt / Spy-Bi-Wire data I/O | Single-pin debug interface enables programming and breakpoint debugging without dedicated JTAG header. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 4 KB nonvolatile memory with 10¹⁵ write endurance, 125 ns word write speed, and built-in ECC-eliminates flash erase latency and wear management firmware. |
| Ultra-Low-Power RTC | 1.5 µA active current in LPM3.5 with 32-kHz crystal enables decade-scale battery operation in time-critical sensor logging applications. |
| Three eUSCI Modules | eUSCI_A0/A1 (UART/IrDA/SPI) and eUSCI_B0 (I²C/SPI) allow simultaneous wired comms to multiple peripherals without software bit-banging overhead. |
| Hardware Multiplier & DMA | 32-bit MPY unit accelerates math-intensive algorithms; three-channel DMA offloads ADC, UART, and timer data movement-reducing CPU wake time by >60%. |
| Comparator_D with Hysteresis | 10-channel analog comparator with programmable hysteresis and internal voltage reference enables precision threshold detection for battery voltage monitoring or motion sensing. |
Applications
| Smart Meter Sensor Node | Industrial Temperature Monitor |
|---|---|
Use Scenario: Battery-powered gas/water meter collecting pulse counts and pressure readings every 15 minutes, transmitting via UART to LoRaWAN gateway. IC Role / Device Role / Timing Role: Main controller executing low-duty-cycle sensing, RTC-driven wake-up, FRAM-based event logging, and UART packet framing. Use Value: 1.5 µA LPM3.5 current extends CR2032 battery life beyond 10 years; 4 KB FRAM stores 2000+ timestamped events without degradation. | Use Scenario: DIN-rail mounted enclosure measuring ambient temperature via thermistor, logging min/max values hourly, and alerting on threshold breach via I²C-connected display. IC Role / Device Role / Timing Role: Analog front-end processor with 10-bit ADC, comparator-driven interrupt, and RTC calendar for scheduled data aggregation. Use Value: Programmable comparator hysteresis prevents false alarms from noise; 1 KB RAM buffers hourly aggregates before FRAM commit. |
| Wireless Building Occupancy Sensor | Portable Environmental Data Logger |
Use Scenario: PIR + ambient light sensor node in office ceiling, detecting motion/light changes and transmitting status over UART to BLE module. IC Role / Device Role / Timing Role: Dual-sensor fusion engine using GPIO interrupts, ADC sampling, and timer-based debouncing logic. Use Value: 21 GPIO support direct PIR output and photodiode bias control; FRAM retains last-seen occupancy state across power loss. | Use Scenario: Handheld device recording CO₂, humidity, and temperature every 30 seconds for 72 hours, then uploading via USB-UART bridge. IC Role / Device Role / Timing Role: Data concentrator with multi-channel ADC, RTC timestamping, and UART bootloader (BSL) for field firmware updates. Use Value: Hardware UART BSL allows firmware patching without debugger; 10¹⁵ FRAM writes ensure 10+ years of daily logging reliability. |
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 |
|---|---|---|---|
| MSP430FR5732IPWR | 8 KB FRAM, 12-channel ADC (12 ext), 16-channel comparator, RHA/DA packages only-no TSSOP-28 option. | Requires PCB redesign for 40-pin RHA or 38-pin DA; unsuitable for space-constrained TSSOP layouts. | Select only if FRAM capacity >4 KB and ADC channel count >6 are mandatory; verify pinout compatibility with existing layout. |
| MSP430FR2355TPWR | 16 KB FRAM, 12-bit SAR ADC, enhanced analog front-end (PGA, DAC), but no RTC_B module or crystal oscillator support. | Lacks calendar RTC and 32-kHz crystal interface-cannot replace MSP430FR5730IPWR in time-synchronized logging. | Prefer for analog-intensive designs without calendar-based wake-up; avoid where RTC accuracy or long-term timekeeping is required. |
Compared with MSP430FR5732IPWR and MSP430FR2355TPWR, the MSP430FR5730IPWR uniquely balances compact TSSOP-28 packaging, production-ready RTC_B with crystal support, and verified 4 KB FRAM endurance-making it optimal for cost-sensitive, battery-operated sensor nodes requiring precise time-stamping and field firmware update capability.
Availability
MSP430FR5730IPWR is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, building automation controllers, and portable environmental loggers requiring stable component supply and long-lifecycle support.
Supply support for MSP430FR5730IPWR 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 company delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The MSP430FR57xx family was designed specifically for ultra-low-power sensing and system management in battery-operated infrastructure monitoring applications-including smart grid endpoints, HVAC controls, and wireless sensor networks.
FAQ
What is the maximum operating frequency of the MSP430FR5730IPWR?
The MSP430FR5730IPWR supports a maximum system clock frequency of 8 MHz, achieved using its factory-trimmed digital controlled oscillator (DCO). It does not include an internal high-frequency crystal oscillator (HFXT), so external clock sources above 32 kHz must be provided via the XT1 input pins or derived from the DCO. This 8-MHz capability enables real-time signal processing while maintaining sub-100 µA/MHz active current efficiency.
Does the MSP430FR5730IPWR support hardware UART bootloading?
Yes, the MSP430FR5730IPWR includes a hardware UART bootloader (BSL) accessible via eUSCI_A0 or eUSCI_A1 modules. This allows in-system firmware updates over UART without requiring JTAG or Spy-Bi-Wire hardware, reducing production test complexity and enabling field upgrades. The BSL is protected by password security and resides in ROM, ensuring reliability across FRAM write cycles.
What package type is used for the MSP430FR5730IPWR?
The MSP430FR5730IPWR uses a 28-pin TSSOP (Thin Shrink Small Outline Package) with dimensions of 9.7 mm × 4.4 mm. This package includes an exposed thermal pad recommended for connection to DVSS to enhance thermal performance. It is compatible with standard surface-mount assembly processes and reflow profiles, making it suitable for high-volume manufacturing of compact sensor modules.
Can the MSP430FR5730IPWR operate with a 32-kHz crystal for real-time clock functionality?
Yes, the MSP430FR5730IPWR supports 32-kHz crystal operation through its LFXT (Low-Frequency Crystal Oscillator) circuit on PJ.4/XIN and PJ.5/XOUT pins. When configured in LPM3.5 mode, the RTC_B module draws only 1.5 µA typical current with this crystal, enabling accurate calendar-based wake-up and time-stamped data logging for multi-year battery life in remote sensor applications.
How much FRAM and RAM does the MSP430FR5730IPWR integrate?
The MSP430FR5730IPWR integrates 4 KB of ferroelectric RAM (FRAM) for nonvolatile program storage, data logging, and configuration retention, plus 1 KB of volatile RAM for runtime variables and stack operations. FRAM provides 10¹⁵ write endurance and 125 ns write speed-eliminating flash erase delays-and RAM remains powered in LPM3, supporting fast wake-up and buffered sensor data accumulation.
MSP430FR5730IPWR 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:
- 24MHz
- Connectivity:
- I2C, IrDA, LINbus, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 21
- Program Memory Size:
- 4KB (4K 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:
MSP430FR5730IPWR FAQ
1.How can I place an order for MSP430FR5730IPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5730IPWR 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 MSP430FR5730IPWR reliable?
The price and inventory of MSP430FR5730IPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5730IPWR is usually 5 days.
3.What payment methods are accepted for MSP430FR5730IPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5730IPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5730IPWR?
MSP430FR5730IPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5730IPWR 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 MSP430FR5730IPWR?
For technical support, including MSP430FR5730IPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5730IPWR requirements.
6.How does Aetrix verify that MSP430FR5730IPWR is sourced from the original manufacturer or authorized distributors?
All MSP430FR5730IPWR 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 MSP430FR5730IPWR meets industry standards.
7.What is the process for return or replacement of MSP430FR5730IPWR?
All MSP430FR5730IPWR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5730IPWR, 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 MSP430FR5730IPWR part is unused and in its original packaging.
Return procedure for MSP430FR5730IPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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