MSP430F2121IRGER 16-Bit Low-Power Microcontroller (IRGER package)

MSP430F2121IRGER Overview

The MSP430F2121IRGER is an ultra-low-power 16-bit microcontroller optimized for battery-powered and industrial control tasks. It combines a single 16-bit RISC CPU core with low-voltage operation, multiple low-power modes, and on-chip analog and timing peripherals for real-time sensing and control. The device targets compact designs where fewer external components, lower standby current, and deterministic timing are more important than higher CPU throughput. See the manufacturer’s resources at IC Manufacturer for ordering and support.

MSP430F2121IRGER Technical Specifications

MSP430F2121IRGER Key Features

• Single 16-bit RISC CPU core that delivers efficient code density and faster interrupt response for control tasks.
• Wide 1.8?C3.6 V supply range enabling compatibility with single-cell Li-ion and common industrial rails.
• Multiple ultra-low-power modes to maximize battery life; ideal for long-term, duty-cycled sensing applications.
• Integrated 10-bit ADC and 16-bit timer for accurate analog measurement and precise timing without external components.

Typical Applications

• Portable sensor nodes and handheld instruments where low standby current plus reliable analog measurement extend battery life and reduce maintenance intervals.
• Industrial process controls that require robust operation across -40 ??C to +85 ??C and deterministic timing for closed-loop tasks.
• Metering and utility endpoints that benefit from small board area, integrated ADC, and low-power sleep states to meet long-term deployment goals.
• Consumer low-power control circuits such as remote controls and compact user interfaces that need a small code footprint and few external parts.

MSP430F2121IRGER Advantages vs Typical Alternatives

The device offers a more power-efficient balance of features than many 8-bit controllers and simpler MCUs. With a 16-bit core, integrated 10-bit ADC, and 16-bit timer, it provides higher resolution and finer time control than typical low-end alternatives. The 1.8?C3.6 V supply range and five low-power modes make it more suitable for battery-operated designs that require months or years of life. Its small 20-pin package reduces board area compared with multi-chip solutions.

MSP430F2121IRGER Brand Info

The MSP430F2121IRGER is part of Texas Instruments’ MSP430 family of ultra-low-power microcontrollers. TI positions this series for energy-sensitive embedded designs, combining efficient 16-bit processing with on-chip analog and timing peripherals to minimize BOM and optimize battery runtime.

FAQ

What core does it use?

It uses a 16-bit RISC CPU core common to the MSP430 family. The core emphasizes low power and compact code size for embedded control tasks.

What supply voltages are supported?

The device runs from 1.8 V up to 3.6 V. This range supports single-cell batteries and common industrial supply rails without extra regulators.

Is it suitable for industrial temperatures?

Yes. The industrial-grade version is specified for operation from -40 ??C to +85 ??C, making it suitable for many outdoor and factory-floor environments.

What analog resources are integrated?

The MCU includes a on-chip 10-bit ADC and comparator resources to measure sensors directly, reducing the need for external ADC components and lowering system cost.

How does it save power in battery systems?

It implements five defined low-power modes plus a low-voltage operating range and an on-chip oscillator. These features allow designers to minimize current draw during idle intervals and extend battery runtime.