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Texas Instruments MSP430F2481TPMR
- Part No.:
- MSP430F2481TPMR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MSP430F2481TPMR.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MSP430F2481TPMR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller featuring 48KB+256B flash memory, 4KB RAM, a 16-bit Timer_B with seven capture/compare registers and shadow registers, dual USCI modules (UART/IrDA/SPI/I²C), and on-chip comparator - designed for battery-powered sensor nodes and portable instrumentation requiring sub-1µs wake-up and <0.1 µA off-mode retention.
For engineers reviewing the MSP430F2481TPMR datasheet, MSP430F2481TPMR pinout, MSP430F2481TPMR application, or MSP430F2481TPMR equivalent, key selection considerations include its ADC12 omission (vs. F248), 64-pin QFP package, 1.8–3.6 V operation, JTAG debug interface, and compatibility with MSP-FET430UIF and MSP-TS430PM64 development tools.
Technical Context
The MSP430F2481TPMR implements the MSP430x2xx architecture with a 16-bit CPU, constant generators, and five low-power modes optimized for extended battery life. Its basic clock system integrates a calibrated DCO (±1% over temperature/voltage), LF oscillator, and support for external crystals (XT1 up to 32 kHz, XT2 up to 16 MHz).
This device belongs to the MSP430F24x1 variant group: identical to MSP430F24x but with ADC12 module omitted. It retains full Timer_A (3 CC), Timer_B (7 CC + shadow), two USCI_A (UART/SPI) and two USCI_B (SPI/I²C) modules, 48 general-purpose I/O pins, and SVS/SVM monitoring circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 62.5-ns instruction cycle; enables high code efficiency in memory-constrained embedded applications. |
| Flash / RAM | 48 KB + 256 B flash program memory and 4 KB RAM; supports in-system programming and secure code protection via fuse. |
| Supply Voltage | 1.8 V to 3.6 V operation; allows direct integration with single-cell Li-ion or dual-cell alkaline power sources. |
| Ultra-Low Power | 0.1 µA in off-mode with RAM retention; 0.3 µA in standby (VLO); 270 µA active at 1 MHz/2.2 V - critical for multi-year battery life. |
| Wake-Up Time | Less than 1 µs from standby to active mode; enables rapid response to external events without sacrificing energy efficiency. |
| Peripherals | Dual USCI_A (UART/IrDA/SPI) and USCI_B (SPI/I²C); 16-bit Timer_A (3 CC) and Timer_B (7 CC + shadow); comparator; SVS/SVM. |
| Package | 64-pin plastic quad flat pack (QFP, PM package); 10 mm × 10 mm footprint with 0.5 mm pitch - compatible with standard PCB assembly processes. |
Pinout & Package
Package: 64-pin QFP (PM), RoHS-compliant, surface-mountable with exposed thermal pad (DVSS-connected per TI recommendation).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DVCC (Pin 1) | Digital supply voltage input | Primary power rail for all digital logic; requires local 100 nF decoupling to DVSS. |
| DVSS (Pin 63) | Digital ground reference | Return path for digital I/O and core logic; must be low-impedance and separated from AVSS where noise-sensitive analog functions exist. |
| AVCC (Pin 64) | Analog supply input | Power for comparator only (no ADC12); must be filtered and isolated from DVCC to prevent digital switching noise coupling. |
| AVSS (Pin 62) | Analog ground reference | Ground return for comparator; should connect to DVSS at single point near device to minimize ground loops. |
| RST/NMI (Pin 58) | Reset and non-maskable interrupt input | Active-low reset source; also serves as NMI trigger or BSL entry signal when pulled low during power-up. |
| TCK/TMS/TDI/TDO (Pins 57,56,55,54) | JTAG test interface | Enables full-speed debugging, flash programming, and boundary-scan testing using MSP-FET430UIF or compatible emulators. |
| P1.x–P6.x (Pins 12–19,20–27,28–35,36–43,44–51,59–6,2,3,4,5,6) | General-purpose I/O ports | 48 total GPIOs with interrupt capability; multiple pins support peripheral functions (e.g., UCA0TXD, TB1, A0–A7) - configurable per application needs. |
Key Features
| Feature | Design Value |
|---|---|
| Calibrated DCO with ±1% accuracy | Eliminates need for external crystal in cost-sensitive timing applications while maintaining reliable wake-up and clock stability. |
| Dual USCI modules (A0/A1/B0/B1) | Supports simultaneous UART (with auto-baud), IrDA, SPI, and I²C communication - ideal for multi-protocol sensor gateways. |
| Timer_B with shadow registers | Enables glitch-free PWM updates and precise time-critical control in motor or lighting applications without CPU intervention. |
| SVS/SVM with programmable threshold | Monitors supply voltage in real time and triggers reset or interrupt before brownout-induced corruption occurs. |
| Bootstrap loader (BSL) | Allows field firmware updates via UART without external programmer - reduces service cost and enables remote maintenance. |
Applications
| Smart Utility Metering | Wireless Sensor Node |
|---|---|
Use Scenario: Battery-powered gas/water meter with pulse counting, LCD display, and RF telemetry. IC Role / Device Role / Timing Role: Main system controller managing sensor interface, real-time clock, low-power sleep scheduling, and UART-based RF module control. Use Value: Sub-1µs wake-up and 0.1 µA off-mode enable >10-year battery life; dual USCI supports simultaneous LCD SPI and RF UART communication. |
Use Scenario: Environmental monitoring node measuring temperature/humidity and transmitting data via sub-GHz transceiver. IC Role / Device Role / Timing Role: Central MCU coordinating sensor reads, data logging, low-power timer-triggered transmission, and watchdog supervision. Use Value: SVS prevents data loss during voltage sag; calibrated DCO ensures accurate timing for duty-cycled radio operation without crystal cost. |
| Portable Medical Instrument | Industrial Control Panel |
Use Scenario: Handheld blood glucose meter with touch interface, LED indicators, and USB charging detection. IC Role / Device Role / Timing Role: System-on-chip handling analog sensor signal conditioning (via comparator), button debouncing, display driving, and USB enumeration. Use Value: Comparator replaces external op-amp for strip detection; ultra-low active current extends clinical use between charges. |
Use Scenario: DIN-rail mounted HMI panel with keypad, LED status indicators, and RS-485 Modbus connectivity. IC Role / Device Role / Timing Role: Interface controller managing keypad scan, LED PWM dimming, and half-duplex RS-485 communication via USCI_B. Use Value: Timer_B shadow registers ensure flicker-free LED control; dual USCI enables concurrent local display update and fieldbus communication. |
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 |
|---|---|---|---|
| MSP430F248TPMR | Includes 12-bit ADC12 (8-channel) not present in MSP430F2481TPMR; otherwise identical flash/RAM/peripherals/package. | Suitable where analog sensing (e.g., thermistor, battery voltage) is required on-board; adds ~1.5 mW active power overhead. | Select MSP430F248TPMR if ADC functionality is needed; MSP430F2481TPMR saves cost and power when comparator-only analog front-end suffices. |
| MSP430F2682TPMR | Higher integration: includes hardware multiplier, enhanced USCI, and 12-bit DAC; 116 KB flash, 8 KB RAM; same 64-pin QFP package. | Targeted at more complex control algorithms (e.g., PID, FFT) and mixed-signal feedback systems requiring DAC output. | Choose MSP430F2682TPMR for advanced signal processing; MSP430F2481TPMR remains optimal for cost/power-constrained sensor endpoints. |
Compared with MSP430F248TPMR, the MSP430F2481TPMR removes ADC12 to reduce die size and static power, making it preferable for comparator-based threshold detection. Against MSP430F2682TPMR, it trades computational capability for lower BOM cost and simpler firmware validation in deterministic control tasks.
Availability
MSP430F2481TPMR is available at Aetrix Electronics and suitable for smart metering, wireless sensor networks, and portable medical devices requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for MSP430F2481TPMR 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 microcontroller innovation.
The MSP430F2481TPMR belongs to the MSP430x2xx ultra-low-power MCU family, engineered specifically for energy-harvesting and battery-operated measurement systems where nanowatt-level sleep currents and sub-microsecond wake-up are mandatory design requirements.
FAQ
Does the MSP430F2481TPMR include an integrated ADC?
No, the MSP430F2481TPMR is part of the MSP430F24x1 variant series and explicitly omits the ADC12 module. It retains the on-chip comparator (Comp_A+) for threshold detection but does not support analog-to-digital conversion. This distinguishes it from the pin-compatible MSP430F248TPMR, which includes the 12-bit ADC12. The MSP430F2481TPMR datasheet confirms ADC12 is not implemented.
What development tools are supported for the MSP430F2481TPMR?
The MSP430F2481TPMR is fully supported by Texas Instruments' MSP430 development ecosystem, including the MSP-FET430UIF USB debugger, MSP-TS430PM64 target socket board for 64-pin QFP packages, and Code Composer Studio IDE. Its JTAG interface (TCK/TMS/TDI/TDO pins) enables full-speed debugging, flash programming, and boundary-scan verification - all validated for MSP430F2481TPMR in SLAS547I.
Is the MSP430F2481TPMR pin-compatible with other MSP430F24x devices?
Yes, the MSP430F2481TPMR shares identical 64-pin QFP (PM) packaging and pinout with MSP430F248TPMR, MSP430F249TPMR, and MSP430F2491TPMR. All share the same terminal functions per Table 3 of SLAS547I. However, functional differences exist - notably the absence of ADC12 - so firmware and schematic design must account for peripheral availability.
What is the maximum operating frequency of the MSP430F2481TPMR?
The MSP430F2481TPMR supports a maximum system clock (MCLK) frequency of 16 MHz, achievable via the internal DCO (calibrated to ±1% across voltage/temperature) or external XT2 crystal/resonator. Its 16-bit RISC core executes instructions at 62.5 ns per cycle at this rate, enabling real-time processing in demanding sensor fusion or communication stack applications.
How does the power consumption of the MSP430F2481TPMR compare across operating modes?
The MSP430F2481TPMR delivers industry-leading low power: 0.1 µA in off-mode (RAM retention), 0.3 µA in standby (VLO), and 270 µA active at 1 MHz/2.2 V. These values are measured and specified in SLAS547I. Its five low-power modes allow dynamic scaling - e.g., entering LPM3 with ACLK active for RTC while disabling CPU and MCLK - making it ideal for intermittent-sensing applications.
MSP430F2481TPMR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-LQFP
- Series:
- MSP430F2xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, IrDA, LINbus, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 48
- Program Memory Size:
- 48KB (48K x 8 + 256B)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F2481TPMR FAQ
1.How can I place an order for MSP430F2481TPMR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F2481TPMR 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 MSP430F2481TPMR reliable?
The price and inventory of MSP430F2481TPMR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F2481TPMR is usually 5 days.
3.What payment methods are accepted for MSP430F2481TPMR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F2481TPMR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F2481TPMR?
MSP430F2481TPMR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F2481TPMR 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 MSP430F2481TPMR?
For technical support, including MSP430F2481TPMR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F2481TPMR requirements.
6.How does Aetrix verify that MSP430F2481TPMR is sourced from the original manufacturer or authorized distributors?
All MSP430F2481TPMR 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 MSP430F2481TPMR meets industry standards.
7.What is the process for return or replacement of MSP430F2481TPMR?
All MSP430F2481TPMR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F2481TPMR, 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 MSP430F2481TPMR part is unused and in its original packaging.
Return procedure for MSP430F2481TPMR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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