MSP430G2233IRHB32T 16-bit Low-Power Microcontroller, 32-Pin

MSP430G2233IRHB32T Overview

The MSP430G2233IRHB32T is a low-power 16-bit microcontroller optimized for simple sensing, control, and serial communication tasks. It combines a compact 16-bit RISC core with on-chip nonvolatile memory and basic analog and timing peripherals. Designers benefit from ultra-low active and standby currents, a small memory footprint suitable for cost-sensitive designs, and a 32-pin package option for increased I/O. For sourcing and detailed manufacturer resources visit IC Manufacturer.

MSP430G2233IRHB32T Technical Specifications

MSP430G2233IRHB32T Key Features

• 16-bit RISC core that delivers efficient instruction throughput for compact control loops and fast interrupt handling.
• Low-voltage operation (1.8?C3.6 V) enabling battery-powered designs with longer run time compared to higher-voltage alternatives.
• Small nonvolatile memory footprint (2 KB Flash) that supports compact firmware and reduces BOM cost for simple embedded tasks.
• On-chip comparator and Timer_A for analog threshold detection and precise event timing without extra external components.
• USI serial interface allowing both SPI and I2C-style connectivity for sensors and peripherals with fewer pins and less software overhead.
• 32-pin package option which provides more GPIO lines than smaller SOIC parts, enabling richer peripheral connections in the same family.

Typical Applications

• Low-cost battery-powered sensors and data loggers that require ultra-low standby current and a small firmware image for long field life.
• Simple motor or actuator control nodes where a 16-bit timer and fast interrupt response reduce latency and improve control stability.
• Serial bridge or protocol translators that use USI to interface SPI or I2C peripherals with basic command sets and minimal memory use.
• Portable medical or consumer devices that need reliable threshold detection via an on-chip comparator and low-power operation to extend battery runtimes.

MSP430G2233IRHB32T Advantages vs Typical Alternatives

The device stands out for combining a true 16-bit core with very low operating voltages and small nonvolatile memory. Compared to 8-bit microcontrollers at similar price points, it offers wider arithmetic headroom and simpler code for certain algorithms. Versus larger MSP430 family members, it trades memory and peripheral depth for lower cost and lower power, making it better for constrained, battery-driven designs. The 32-pin package gives more I/O than many ultra-small alternatives while keeping package cost moderate.

MSP430G2233IRHB32T Brand Info

The MSP430G2233IRHB32T is part of Texas Instruments’ MSP430 family. Texas Instruments provides long-term documentation, development tools, and ecosystem support for rapid integration and firmware development targeted at low-power embedded applications.

FAQ

What is the operating voltage?

The device operates from 1.8 V to 3.6 V. This voltage window supports common single-cell lithium and multiple alkaline battery configurations for low-power portable designs.

How much program memory is available?

There is 2 KB of on-chip flash memory. This amount suits compact control firmware and simple communication stacks but is limited compared with larger microcontrollers.

Does it support SPI or I2C?

Yes. The on-chip USI serial interface supports SPI and I2C-style communication modes, enabling standard peripheral connectivity without adding external UART/SPI controllers.

What analog functions are provided?

An on-chip comparator (Comparator_A+) provides analog threshold detection and window functions. It reduces the need for external comparators in simple sensing applications.

Which temperatures are supported?

The part supports industrial-range operation from -40 ??C to +85 ??C, making it suitable for many field-deployed and industrial control use cases.