MSP430G2221IPW14 16-bit Low-Power Microcontroller 14-pin TSSOP

MSP430G2221IPW14 Overview

The MSP430G2221IPW14 is a low-power, 16-bit microcontroller in a compact 14-pin package. It targets simple sensor nodes, battery-powered controllers, and cost-sensitive embedded designs that need more efficient power use and fewer external components. The device combines a small footprint with integrated timers, serial interfaces and analog inputs to reduce board area and BOM compared with larger MCUs. For procurement and distributor listings visit IC Manufacturer.

MSP430G2221IPW14 Technical Specifications

MSP430G2221IPW14 Key Features

• 16-bit RISC core with a compact instruction set that delivers faster code density and lower cycle counts versus 8-bit alternatives.
• Ultra-low supply range of 1.8?C3.6 V enables longer battery life and simpler power-rail design compared to higher-voltage MCUs.
• Integrated 10-bit ADC reduces the need for external converters, improving accuracy and lowering BOM in mixed-signal designs.
• 16-bit Timer_A for precise timing, PWM and event capture, helpful in motor control, lighting and time-critical sensing tasks.
• Universal Serial Interface (USI) supports UART, SPI and I2C modes for flexible connectivity with fewer pins and lower system cost.
• Small 14-pin TSSOP package saves PCB space and supports denser assemblies than larger 20?C40 pin devices.
• Minimal power modes and fast wake-up behavior allow efficient duty-cycling for battery-operated systems compared with always-on parts.

Typical Applications

• Battery-powered sensor nodes where 1.8?C3.6 V operation and low active/sleep currents extend runtime while keeping the PCB area small.
• Simple human-machine interfaces and portable controls using a single 10-bit ADC plus GPIO to minimize external components and cost.
• Small motor or actuator control that needs 16-bit Timer_A for accurate PWM generation and timing without a larger MCU.
• Serial bridging and configuration tools that use USI in SPI, I2C or UART modes to connect legacy sensors and peripherals in compact enclosures.

MSP430G2221IPW14 Advantages vs Typical Alternatives

Compared with many 8-bit MCUs, this device delivers broader arithmetic range and higher instruction density thanks to its 16-bit core, improving code efficiency and throughput. The combination of a compact 14-pin package and integrated ADC, timer and USI lowers BOM and PCB area versus multi-chip solutions. Its 1.8?C3.6 V range and low-power modes make it more suitable for long-life battery applications than higher-voltage competitors.

MSP430G2221IPW14 Brand Info

The MSP430 family is produced by Texas Instruments, a global semiconductor supplier known for low-power microcontrollers. This product line focuses on ultra-low-power operation and dense peripheral integration for embedded and industrial designs. The brand emphasizes reliable supply, broad documentation and long-term availability for production and sourcing teams.

FAQ

What package does this MCU use?

The part is offered in a 14-pin TSSOP package, denoted by the IPW14 suffix. That package is compact and suited to space-constrained PCBs while providing the full set of pins for I/O, power and debugging.

What voltage range is supported?

Designed for low-voltage systems, the device operates from 1.8 V to 3.6 V. This allows direct operation from single-cell Li-ion and many coin-cell battery chemistries without additional regulators.

How precise is the built-in ADC?

The integrated ADC provides 10-bit resolution suitable for many sensing and measurement tasks. It reduces the need for external converters and simplifies analog front-end design for common industrial sensors.

Can it run serial protocols like I2C or SPI?

Yes. The Universal Serial Interface (USI) supports UART, SPI and I2C modes, enabling flexible connectivity to sensors, memory and peripherals using fewer pins than separate hardware modules.

Is it suitable for battery-powered products?

Yes. The device targets battery-powered applications by combining low-voltage operation, low-power modes and a fast wake-up architecture, which together improve standby life and reduce average power consumption in duty-cycled systems.