MSP430F2121IRGET 16-Bit Low-Power Microcontroller

MSP430F2121IRGET Overview

The MSP430F2121IRGET is an ultra-low-power 16-bit microcontroller designed for compact embedded control and battery-powered systems. It combines a low-voltage operating range with integrated analog and timing peripherals to handle sensing, timing, and low-speed serial tasks. The part targets cost-sensitive designs that need more energy efficiency and tighter sleep currents than many 8-bit alternatives. For sourcing and additional procurement details visit IC Manufacturer.

MSP430F2121IRGET Technical Specifications

MSP430F2121IRGET Key Features

• 16-bit CPU ?? delivers more computational headroom compared to 8-bit MCUs for arithmetic and control tasks.
• Low-voltage operation ?? supports 1.8?C3.6 V supplies, which helps extend battery life in handheld and remote units.
• Integrated 10-bit ADC ?? eases sensor interfacing and reduces external component count for analog measurements.
• Compact memory ?? 2 KB flash and 128 B RAM provide a small, efficient footprint for control firmware and low-overhead RTOS use.
• 16-bit Timer_A ?? enables precise PWM, capture/compare, and timing functions for motor control and power regulation.
• Low-power modes ?? multiple sleep states and fast wake-up support ultra-low average power in duty-cycled systems.
• 20-pin SSOP package ?? compact footprint compared with larger QFP or TQFP alternatives, aiding dense PCB layouts.

Typical Applications

• Battery-operated sensor nodes where sub-milliamp standby and 1.8?C3.6 V operation extend run time and reduce maintenance cycles.
• Portable medical devices that require accurate analog readings and low-power timers for periodic sampling and alert functions.
• Consumer controls such as thermostats or remote controls that need low BOM cost, small flash for firmware, and reliable wake sequences.
• Industrial metering and simple data loggers where a 16-bit core and 10-bit ADC give better resolution and fewer external components.

MSP430F2121IRGET Advantages vs Typical Alternatives

The device offers a clear efficiency advantage over many 8-bit controllers because of its 16-bit core and multiple low-power modes. With a 1.8?C3.6 V supply range and fast wake-up, it reduces energy per transaction compared with older 8-bit parts. The integrated 10-bit ADC and Timer_A reduce external components and board area compared with systems that need discrete analog front ends. The compact 20-pin SSOP package enables denser mechanical and PCB designs than larger packages, lowering system cost and footprint.

MSP430F2121IRGET Brand Info

The MSP430F2121IRGET is part of Texas Instruments’ MSP430 family of ultra-low-power microcontrollers. TI positions this line for energy-focused embedded systems, offering tight integration of analog and timer peripherals and broad third-party toolchain support for development and production.

FAQ

What supply voltage does it need?

It operates across a low-voltage range of 1.8?C3.6 V, which is common for battery-powered designs and provides flexibility for single-cell and regulated two-cell applications.

How much on-chip memory is available?

The part includes 2 KB of flash for program storage and 128 bytes of RAM for runtime variables, suitable for compact control firmware and simple data buffering.

Which analog peripherals are included?

The MCU integrates a 10-bit analog-to-digital converter for sensor interfacing and precision measurement without adding an external ADC, reducing BOM and layout complexity.

What package should I plan for?

It comes in a 20-pin SSOP (RGE) package, offering a smaller board footprint than wide-body packages while keeping enough pins for essential I/O and peripheral signals.

Is it suitable for low-power designs?

Yes. The device includes multiple low-power modes and fast wake-up behavior, making it well suited to duty-cycled or event-driven systems that demand low average current.