MSP430F2131IDW 16-bit Microcontroller IDW Package

MSP430F2131IDW Overview

The MSP430F2131IDW is a low?power, 16?bit microcontroller aimed at compact, battery?sensitive industrial and consumer designs. It combines a 16?bit RISC core with small nonvolatile memory and a compact 14?pin TSSOP package to save board area and BOM cost. Typical uses include sensor front?ends, control logic, and serial interface bridging where low power and simple mixed?signal peripherals matter. For procurement and factory sourcing see IC Manufacturer.

MSP430F2131IDW Technical Specifications

MSP430F2131IDW Key Features

• 16?bit RISC core ?C delivers efficient instruction execution and compact code density for simple control tasks.
• Small Flash and RAM ?C 2 KB Flash and 128 B RAM provide a low?cost footprint for firmware and quick boot.
• Integrated ADC10 ?C enables direct analog sensor sampling without external converters, reducing parts and layout.
• USI serial block ?C supports both SPI and I2C communications for flexible peripheral and bus interfacing.
• 16?bit Timer_A ?C offers accurate timing, PWM and capture/compare functions for motor control or timed sampling.
• Low operating voltage and multiple low?power modes ?C extend battery life and support energy?constrained systems.
• Compact 14?pin TSSOP package ?C reduces PCB area and cost compared with larger MCUs while keeping essential I/O.

Typical Applications

• Battery?powered sensor nodes and dataloggers that need sub???A standby and periodic ADC sampling for long service life.
• Simple industrial controls and relay drivers where a single 16?bit CPU and Timer_A can manage sequencing and timing tasks.
• Human?machine interface buttons and LED drivers with low pin count, using integrated GPIO and timer PWM for status indication.
• Serial bridge or peripheral controller for SPI/I2C sensors and displays in compact consumer products and embedded modules.

MSP430F2131IDW Advantages vs Typical Alternatives

The device is optimized for low power and compact BOM compared with larger 32?bit MCUs. With a 16?bit RISC core, small Flash and RAM, and integrated ADC and USI, it consolidates functions that otherwise require external ICs. In comparison to higher?end controllers it offers lower active and standby currents, a smaller package, and fewer pins, making it more cost?effective for simple control and sensing tasks.

MSP430F2131IDW Brand Info

MSP430F2131IDW is part of the MSP430 microcontroller family from Texas Instruments. The family is known for ultra?low power operation and flexible mixed?signal peripherals tailored to battery?sensitive, space?constrained embedded designs.

FAQ

What core does it use?

The device uses a 16?bit MSP430 RISC core designed for compact code and energy?efficient execution, suitable for simple control and sensing applications.

What supply voltage is required?

It operates from a nominal 1.8 V to 3.6 V supply range, allowing compatibility with common single?cell Li?ion and regulated 3.3 V systems.

Does it have analog inputs?

Yes, the MCU includes an ADC10 analog converter intended for sensor sampling and other single?ended measurements without extra ADC hardware.

Which serial interfaces are available?

The device integrates a Universal Serial Interface (USI) block that supports SPI and I2C modes, enabling connection to most serial peripherals and buses.

Is it suitable for battery applications?

Yes, multiple low?power modes and a low operating voltage range make it well suited to battery?powered designs that require long standby times and periodic wakeups.