Texas Instruments MSP430F249TPM

Overview

MSP430F249TPM from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with 60KB+256B flash memory, 2KB RAM, a 12-bit ADC with 8 channels, two 16-bit timers (Timer_A with 3 capture/compare registers and Timer_B with 7 plus shadow registers), four USCI modules (dual UART/IrDA/SPI + dual SPI/I²C), and on-chip comparator - deployed in battery-powered sensor nodes and portable instrumentation.

For engineers reviewing the MSP430F249TPM datasheet, MSP430F249TPM pinout, MSP430F249TPM application, or MSP430F249TPM equivalent, key selection criteria include its 64-pin QFP package, 1.8–3.6 V supply range, <1 µs wake-up time from standby, integrated SVS/SVM, and full JTAG debug support via TCK/TMS/TDI/TDO pins.

Technical Context

The MSP430F249TPM implements a 16-bit CPU with constant generators and hardware multiplier for optimized code efficiency in low-power embedded control. Its basic clock system integrates a calibrated DCO (±1% accuracy at 1 MHz, 3 V), internal LF oscillator, 32-kHz crystal support (XT1), and optional high-frequency crystal (XT2 up to 16 MHz).

It features dual USCI modules per interface type: USCI_A0/A1 support enhanced UART with auto-baud detection and IrDA encoding/decoding; USCI_B0/B1 support synchronous SPI and I²C master/slave operation. The ADC12 module includes internal reference, sample-and-hold, and autoscan - directly controllable by Timer_A or software triggers.

Key Specifications

Pinout & Package

Package: 64-pin plastic quad flat pack (QFP, PM package), 10 mm × 10 mm, 0.5 mm pitch, lead-free and RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low-power microcontroller applications.

Compared with MSP430F248TPM and MSP430F2491TPM, the MSP430F249TPM uniquely balances maximum flash capacity (60KB) with full analog integration (ADC12 + comparator), making it optimal for feature-rich, sensor-inclusive firmware deployments requiring field-upgradable code space.

Availability

MSP430F249TPM is available at Aetrix Electronics and suitable for smart sensor nodes, portable data loggers, and industrial control modules requiring stable component supply, long-term lifecycle assurance, and TI-authorized traceability.

Supply support for MSP430F249TPM 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 MSP430F2xx family was designed specifically for ultra-low-power sensing and measurement applications - emphasizing rapid wake-up, intelligent peripheral autonomy, and energy-proportional computing across five power modes.

FAQ

What is the maximum operating frequency of the MSP430F249TPM?

The MSP430F249TPM supports a maximum system clock (MCLK) frequency of 16 MHz, achievable using the XT2 high-frequency crystal oscillator or internal DCO calibrated to ±1% accuracy at 1 MHz and 3 V. This enables deterministic real-time execution for time-critical control loops while maintaining ultra-low power consumption in active mode.

Does the MSP430F249TPM include hardware debugging support?

Yes, the MSP430F249TPM integrates a full Embedded Emulation Module (EEM) compliant with IEEE 1149.1 (JTAG). It supports real-time debugging, flash programming, and boundary-scan testing via dedicated TCK, TMS, TDI, and TDO pins - compatible with TI's MSP-FET430UIF and third-party JTAG tools.

Can the MSP430F249TPM operate from a single 3.3 V supply?

Yes, the MSP430F249TPM operates across a supply range of 1.8 V to 3.6 V, making 3.3 V a fully supported and commonly used nominal voltage. At 3.3 V, active-mode current is approximately 320 µA at 1 MHz, and all peripherals - including ADC12, USCI, and timers - function within specification.

How many analog input channels does the MSP430F249TPM ADC support?

The MSP430F249TPM ADC12 module supports eight analog input channels (A0–A7), mapped to pins P6.0 through P6.7 and P2.6. All channels are accessible simultaneously in autoscan mode, with configurable sample-and-hold timing and selectable internal or external reference voltage sources.

Is the MSP430F249TPM pin-compatible with other devices in the MSP430F24x family?

Yes, the MSP430F249TPM shares identical 64-pin QFP (PM) packaging and pinout with all MSP430F24x-series devices, including MSP430F247TPM, MSP430F248TPM, and MSP430F2491TPM. This enables hardware reuse across variants differing only in flash/RAM size or ADC inclusion - simplifying design scalability and inventory management.