Texas Instruments MSP430F249MPMEP

Overview

MSP430F249MPMEP from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 60KB+256B flash, 2KB RAM, a 12-bit ADC with internal reference, dual 16-bit timers (Timer_A3 and Timer_B7), four USCI modules (UART/IrDA/SPI/I²C), and operation from 1.8 V to 3.6 V. It targets battery-powered sensor systems and industrial control where sub-1-μs wake-up and <0.1 μA off-mode retention are critical.

For engineers reviewing the MSP430F249MPMEP datasheet, MSP430F249MPMEP pinout, MSP430F249MPMEP application, or MSP430F249MPMEP equivalent, key selection criteria include its −55°C to 125°C extended temperature rating, QFP-64 package with 48 GPIO, calibrated DCO enabling <1 μs active-mode wake-up, and integrated supply voltage supervisor with programmable brownout detection.

Technical Context

The MSP430F249MPMEP implements a 16-bit RISC CPU with seven addressing modes and constant generators for high code efficiency. Its basic clock module delivers ACLK, MCLK, and SMCLK from multiple sources: internal DCO (calibrated to 1%, up to 16 MHz), 32-kHz crystal (−40°C to 105°C), external digital clock, or resistor-tuned oscillator.

Peripherals include two independent 16-bit timers-Timer_A3 with three capture/compare registers and Timer_B7 with seven-and four USCI modules: USCI_A0/A1 support UART (with auto-baud), IrDA, and SPI; USCI_B0/B1 support I²C and SPI. The ADC12 provides 12-bit SAR conversion with sample-and-hold, autoscan, and internal 2.5-V reference.

Key Specifications

Pinout & Package

Package: 64-pin Plastic Quad Flat Package (QFP, PM), 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 mixed-signal microcontroller applications.

Compared with MSP430F249MPMEP, the MSP430F2619TPMR adds memory and acceleration for compute-heavy tasks, while the MSP430FR5969IPM replaces flash with FRAM for infinite write endurance and lower active power-both retain the same QFP-64 footprint and extended temperature range.

Availability

MSP430F249MPMEP is available at Aetrix Electronics and suitable for industrial sensor nodes, avionics health monitors, and harsh-environment PLC I/O modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MSP430F249MPMEP 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 focused on analog, embedded processing, and connectivity technologies, serving industrial, automotive, and communications markets.

The MSP430F249MPMEP belongs to TI's ultra-low-power mixed-signal MCU product line, designed specifically for extended-battery-life applications in sensor systems, industrial control, and metering where reliability across extreme temperatures is mandatory.

FAQ

What is the operating temperature range of the MSP430F249MPMEP?

The MSP430F249MPMEP is rated for −55°C to +125°C operation, making it suitable for aerospace, oil & gas, and military applications where standard commercial MCUs fail. This extended range is achieved through enhanced process screening and packaging, and is validated per TI's enhanced-product (EP) qualification standards-not just derated commercial specs.

Does the MSP430F249MPMEP include a hardware multiplier?

No, the MSP430F249MPMEP does not integrate a hardware multiplier peripheral. That feature appears in later-generation MSP430 devices such as the F26x and FR5xx families. For integer multiplication, the MSP430F249MPMEP relies on efficient software routines leveraging its 16-bit RISC architecture and constant generators.

Can the MSP430F249MPMEP operate without an external crystal?

Yes, the MSP430F249MPMEP can operate entirely from its internal digitally controlled oscillator (DCO), which is factory-calibrated to ±1% accuracy at 1/8/12/16 MHz. External crystals (e.g., 32-kHz watch crystal or 4–16 MHz XT2) are optional and used only when higher frequency stability or precision is required.

How many analog input channels does the ADC12 module support on the MSP430F249MPMEP?

The ADC12 module on the MSP430F249MPMEP supports eight analog input channels (A0–A7), accessible via P6.0 through P6.7. All channels share the same 12-bit SAR converter and internal 2.5-V reference, and support autoscan mode for sequential conversion without CPU involvement.

Is the MSP430F249MPMEP pin-compatible with the commercial-grade MSP430F249IPM?

Yes, the MSP430F249MPMEP is pin-compatible with the commercial MSP430F249IPM and shares identical QFP-64 (PM) pinout, register map, and peripheral functionality. The primary differences are extended temperature qualification (−55°C to +125°C vs. −40°C to +85°C) and enhanced screening-no PCB redesign is needed when upgrading to the EP version.