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Texas Instruments MSP430F5249IRGCR
- Part No.:
- MSP430F5249IRGCR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
MSP430F5249IRGCR.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
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Product details
Overview
MSP430F5249IRGCR from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 128 KB flash, 8 KB RAM, a 10-bit ADC with 12 input channels (10 external + 2 internal), four 16-bit timers (TA0/TA1/TA2/TB0), two USCI modules (UART/IrDA/SPI/I²C), and RTC with alarm. It operates from 1.8 V to 3.6 V and supports fast wake-up (3.5 µs) from LPM3 standby mode - ideal for battery-powered sensor nodes and portable data loggers.
For engineers reviewing the MSP430F5249IRGCR datasheet, MSP430F5249IRGCR pinout, MSP430F5249IRGCR application, or MSP430F5249IRGCR equivalent, key selection criteria include its 64-pin VQFN package, integrated ADC resolution and channel count, low-power timer architecture, RTC capability, and dual-USCI interface flexibility for sensor-to-host communication.
Technical Context
The MSP430F5249IRGCR implements a digitally controlled oscillator (DCO) with FLL stabilization, supporting system clock frequencies up to 25 MHz. Its unified clock system integrates XT1 (32-kHz crystal), XT2 (up to 32-MHz crystal), REFO (32.768-kHz trimmed internal reference), and VLO (10-kHz low-power oscillator) sources.
Power management includes a fully integrated LDO with programmable core voltage, supply supervision (SVM/SVS), brownout reset, and five low-power modes (LPM0–LPM4.5). The device uses a 16-bit RISC CPUXV2 core with constant generators and 32-bit hardware multiplier for efficient signal processing in resource-constrained embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with constant generators and 32-bit hardware multiplier for efficient math-intensive firmware |
| Flash / RAM | 128 KB flash memory with segment erase and 8 KB SRAM with full retention in LPM3/LPM4 |
| ADC | 10-bit SAR ADC (ADC10_A) with 200 ksps sampling rate, 12-channel input mux (10 external, 2 internal references) |
| Timers | Four independent 16-bit timers: TA0 (5 CC), TA1 (3 CC), TA2 (3 CC), TB0 (7 CC shadow registers) for PWM, capture, and RTC functions |
| USCI Interfaces | Two USCI modules: USCI_A0/A1 support UART/IrDA/SPI; USCI_B0/B1 support I²C/SPI - enabling dual-protocol peripheral connectivity |
| Low-Power Modes | LPM3 (1.9 µA @ 3.0 V, RTC active), LPM4 (1.1 µA), LPM4.5 (0.18 µA); wakeup in 3.5 µs from LPM3 |
| Supply Range | 1.8 V to 3.6 V operation with integrated LDO and programmable VCORE for optimized power/performance trade-offs |
Pinout & Package
VQFN-64 (RGC) package, 9 mm × 9 mm body size with exposed thermal pad (recommended connection to DVSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0CLK/ACLK | Port 1 bit 0 / Timer A0 clock / Auxiliary clock input | Configurable I/O supporting low-frequency timing source or system clock distribution |
| P5.4/XIN & P5.5/XOUT | XT1 crystal oscillator input/output | Connects 32.768-kHz watch crystal for RTC and low-power clocking |
| P5.2/XT2IN & P5.3/XT2OUT | XT2 crystal oscillator input/output | Supports high-frequency crystals up to 32 MHz for active-mode performance |
| P3.0–P3.4 / P4.0–P4.5 | USCI_A0/A1 and USCI_B0/B1 signal pins | Enable simultaneous UART/IrDA/SPI (A) and I²C/SPI (B) communication without external level shifters |
| P6.0–P6.7 / P5.0–P5.1 | ADC analog inputs (A0–A9) | 10 external analog channels with dedicated pins; P5.0/P5.1 also serve as external reference inputs (VeREF+/VeREF−) |
| RST/NMI | Reset and non-maskable interrupt input | Hardware reset trigger and edge-sensitive NMI source for critical fault handling |
| TEST/SBWTCK & PJ.x | Spy-Bi-Wire debug interface | 2-wire JTAG-compatible programming and debugging using minimal PCB footprint |
Key Features
| Feature | Design Value |
|---|---|
| FLL-stabilized DCO with multiple clock sources | Enables precise, low-jitter system clock generation without external high-frequency crystal in many applications |
| Integrated LDO with programmable VCORE | Reduces external component count and allows dynamic core voltage scaling to balance performance vs. power |
| RTC_A module with alarm and calibration | Provides autonomous timekeeping and scheduled wake-up events while consuming <2 µA in LPM3 |
| Three-channel DMA controller | Offloads CPU during ADC conversions, USCI transfers, and timer operations - extending battery life in burst-mode sensing |
| Comparator_B with 8 selectable inputs | Supports analog threshold detection, window monitoring, and battery voltage supervision without ADC overhead |
Applications
| Analog Sensor Systems | Digital Sensor Systems |
|---|---|
Use Scenario: Continuous temperature/humidity monitoring in wireless environmental nodes with periodic BLE transmission. IC Role / Device Role / Timing Role: Primary MCU managing analog front-end (via ADC10_A), RTC-triggered sampling, and low-power sleep/wake cycles. Use Value: 1.9 µA LPM3 current enables multi-year battery life; 10-bit ADC resolution supports ±0.5°C temperature accuracy with NTC thermistors. | Use Scenario: Industrial vibration sensor node using digital MEMS accelerometer (I²C interface) and local FFT preprocessing. IC Role / Device Role / Timing Role: Host controller for I²C sensor, real-time signal processing via hardware multiplier, and SPI-based flash logging. Use Value: Dual USCI modules allow concurrent I²C sensor readout and SPI memory write; 32-bit multiplier accelerates 16-point FFT in <1 ms. |
| Data Loggers | General-Purpose Embedded Control |
Use Scenario: Portable soil moisture logger recording capacitive sensor readings every 15 minutes onto microSD card. IC Role / Device Role / Timing Role: Central controller coordinating ADC sampling, RTC timestamping, FAT32 file writes, and deep-sleep between intervals. Use Value: Full RAM retention in LPM4 preserves file state across 15-minute sleep; 128 KB flash stores firmware + 7+ days of 10-sample/minute logs. | Use Scenario: Smart lighting control panel with pushbutton inputs, LED dimming (PWM), and UART diagnostics port. IC Role / Device Role / Timing Role: System manager handling GPIO debouncing, TA0/TA1 PWM generation, and UART command parsing. Use Value: Five 16-bit timers provide independent PWM channels for RGB LEDs and fan control; Schmitt-trigger inputs tolerate noisy panel wiring. |
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 |
|---|---|---|---|
| MSP430F5247IRGCR | 64 KB flash (vs. 128 KB), identical peripherals, same 64-pin VQFN package and pinout | Reduced firmware capacity limits complex protocol stacks or large lookup tables | Select when application firmware fits within 64 KB and cost sensitivity outweighs future scalability needs |
| MSP430F5244IRGZR | 48-pin VQFN (RGZ), 128 KB flash, but only 8 external ADC channels and 6 comparator inputs (vs. 10/8) | Smaller PCB footprint but fewer analog inputs; no P6.6/P6.7 or P7.x pins for expanded I/O | Choose for space-constrained designs where ADC channel count and I/O count are sufficient and BOM simplification is prioritized |
Compared with MSP430F5247IRGCR, the MSP430F5249IRGCR provides double flash capacity for field-upgradable firmware and larger data buffers; versus MSP430F5244IRGZR, it delivers 2 additional ADC channels and 17 more GPIOs in the same 64-pin footprint - critical for multi-sensor fusion or legacy interface compatibility.
Availability
MSP430F5249IRGCR is available at Aetrix Electronics and suitable for analog sensor systems, portable data loggers, and industrial embedded control requiring stable component supply and long-term manufacturability.
Supply support for MSP430F5249IRGCR 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 MSP430F5249IRGCR belongs to TI's MSP430F5xx ultra-low-power MCU family, designed specifically for extended-battery-life measurement applications requiring precision analog integration, real-time clock functionality, and robust low-power operation.
FAQ
What is the maximum system clock frequency supported by the MSP430F5249IRGCR?
The MSP430F5249IRGCR supports a maximum system clock (MCLK) frequency of 25 MHz, achieved using the FLL-controlled DCO with XT2 (high-frequency crystal) or internal REFO as reference. This frequency enables high-speed ADC sampling (200 ksps), fast USCI baud rates, and responsive real-time control loops while maintaining ultra-low-power efficiency in active mode.
Does the MSP430F5249IRGCR include an integrated real-time clock (RTC)?
Yes, the MSP430F5249IRGCR integrates the RTC_A module with calendar mode, alarm interrupt, and calibration capability. It operates from the 32.768-kHz XT1 crystal or VLO source and retains full functionality in LPM3 standby mode while drawing only 1.9 µA at 3.0 V - making it suitable for time-stamped data logging and scheduled wake-up applications.
How many analog input channels does the ADC on the MSP430F5249IRGCR support?
The MSP430F5249IRGCR features the ADC10_A module with 12 total input channels: 10 external analog inputs (A0–A9 mapped to P6.0–P6.7 and P5.0–P5.1) plus 2 internal references (temperature sensor and VCC/2). This configuration supports simultaneous multi-sensor acquisition in compact analog front-end designs without external multiplexers.
What debug interface does the MSP430F5249IRGCR use, and how many pins are required?
The MSP430F5249IRGCR uses the 2-wire Spy-Bi-Wire (SBW) interface for programming and debugging, requiring only TEST/SBWTCK (pin 59) and RSTDVCC/SBWTDIO (pin 64) - plus ground. This eliminates the need for a full 4-wire JTAG connector, reducing PCB layout complexity and test point count in space-constrained designs.
Is the MSP430F5249IRGCR pin-compatible with other devices in the MSP430F524x family?
Yes, the MSP430F5249IRGCR in the 64-pin VQFN (RGC) package shares identical pinout and electrical characteristics with MSP430F5247IRGCR, MSP430F5239IRGCR, and MSP430F5237IRGCR. This allows direct substitution within the same footprint when flash/RAM or ADC requirements align - simplifying design reuse and qualification across product variants.
MSP430F5249IRGCR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-VFQFN Exposed Pad
- Series:
- MSP430F5xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPUXV2
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- I2C, IrDA, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 53
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 12x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F5249IRGCR FAQ
1.How can I place an order for MSP430F5249IRGCR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5249IRGCR 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 MSP430F5249IRGCR reliable?
The price and inventory of MSP430F5249IRGCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5249IRGCR is usually 5 days.
3.What payment methods are accepted for MSP430F5249IRGCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F5249IRGCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F5249IRGCR?
MSP430F5249IRGCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F5249IRGCR 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 MSP430F5249IRGCR?
For technical support, including MSP430F5249IRGCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5249IRGCR requirements.
6.How does Aetrix verify that MSP430F5249IRGCR is sourced from the original manufacturer or authorized distributors?
All MSP430F5249IRGCR 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 MSP430F5249IRGCR meets industry standards.
7.What is the process for return or replacement of MSP430F5249IRGCR?
All MSP430F5249IRGCR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5249IRGCR, 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 MSP430F5249IRGCR part is unused and in its original packaging.
Return procedure for MSP430F5249IRGCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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