Manufacturer Part Number

MSP430F6731AIPN

Description

16-bit microcontroller with 32KB flash and 80-pin LQFP package. Texas Instruments MSP430F6xx series. Designed for low-power and cost-sensitive applications. Features advanced MSP430 CPUXV2 processor core operating at up to 25MHz.

Specifications

Core: MSP430 CPUXV2

Core Size: 16-bit

Program Memory: 32KB Flash

RAM: 2KB

Data Converters: Five 10-bit ADCs, three 24-bit ADCs

Number of I/O Pins: 52

Supply Voltage: 1.8V to 3.6V

Operating Temp: -40°C to 85°C

Connectivity: I2C, IrDA, LINbus, SCI, SPI, UART/USART

Peripherals: Brown-out Detect/Reset, DMA, LCD controller, Power-on Reset, PWM, watchdog timer

Oscillator: Internal

Package: 80-LQFP (12mm x 12mm)

RoHS Status: ROHS3 Compliant

REACH Status: REACH Unaffected

MSL: Level 3 (168 hours)

ECCN: EAR99

HTSUS: 8542.31.0001

Device Structure

The microcontroller has a single-chip architecture integrating CPU, flash memory, RAM, timers, ADCs, communication modules, and peripheral controllers. Housed in an 80-pin LQFP package, fits easy on PCBs using surface-mount technology.

Performance Characteristics

Runs at up to 25MHz for efficient processing with low power. Up to 52 GPIO for flexible I/O. Optimized for battery use with low-voltage range from 1.8V to 3.6V. Fast flash access and code execution. Multiple communication protocols supported. Integrated LCD control and power management functions.

Application Environments

Good for energy metering, industrial control, portable devices, medical electronics, and smart sensors. Performs reliably under wide temperature range, suitable for harsh industrial or outdoor conditions. Ideal for designs needing high integration and low power consumption.

Selection Guidelines

Choose this model for 16-bit processing, medium-size flash memory, wide connectivity, and compact 80-pin package. Preferred when SPI, UART, I2C, and LCD interface are required. Make sure 32KB flash and 2KB RAM meet your application’s needs. Voltage and temperature range suitable for industrial or portable designs.

Usage Considerations

Ensure maximum moisture exposure does not exceed MSL 3 (168 hours). Observe proper ESD handling. Flash memory endurance and RAM size are ideal for many embedded tasks, but evaluate your software requirements. Proper PCB layout for LQFP is important. Check regulator and decoupling for stable voltage. ADC resolution suits both control and sensor applications.

Potential Equivalent/Replacement Models

Texas Instruments MSP430F6731 (different part code or package options for similar specs)

MSP430F6733 – larger memory models for more complex applications

MSP430F6736 – higher pin count alternatives

MSP430F5358 – related MSP430F5xx series with comparable performance

If you need other brands or more alternatives, please contact the Ariat-Tech sales team for a detailed list and sourcing advice. Some alternatives may require review for pin compatibility and feature matching.

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