MSP430G2433IN20 16-bit Microcontroller 20-Pin DIP

MSP430G2433IN20 Overview

The MSP430G2433IN20 is a low-power, 16-bit microcontroller designed for small embedded systems that demand long battery life and compact packages. It combines a 16-bit RISC CPU, multiple low-power modes, and integrated peripherals in a 20-pin PDIP form factor. The device targets sensor nodes, portable instrumentation, and simple control tasks where low supply current and deterministic timing matter. For sourcing and additional technical resources, visit IC Manufacturer.

MSP430G2433IN20 Technical Specifications

MSP430G2433IN20 Key Features

• Single 16-bit RISC core that delivers efficient code density and faster integer math for control loops and signal processing.
• Low-voltage operation (1.8?C3.6 V) enabling battery-powered designs and compatibility with common battery chemistries.
• Integrated Timer_A with three capture/compare channels for precise PWM, pulse measurement, and timed control tasks.
• Universal Serial Interface (USI) that simplifies implementation of UART, SPI, or I2C without external protocol controllers.
• Small 20-pin PDIP package that eases prototyping and board-level replacement in legacy DIP sockets.
• Multiple low-power modes that reduce system current to microamp-levels for longer battery life in unattended systems.
• On-chip Flash and SRAM that eliminate external memory, reducing BOM cost and board area.
• Watchdog timer and brownout support for improved reliability in industrial and portable applications.

Typical Applications

• Battery-powered sensor nodes where sub-??A standby and 1.8?C3.6 V operation extend service life and minimize maintenance visits.
• Portable instrumentation that needs a compact PDIP form factor, deterministic timers, and a small flash footprint for firmware updates.
• Simple motor or actuator control using Timer_A PWM channels for precise duty cycle control and capture timing on feedback signals.
• Serial bridge and protocol converters that leverage the USI to implement UART, SPI, or I2C interfaces with minimal external components.

MSP430G2433IN20 Advantages vs Typical Alternatives

The device offers a compact, cost-efficient option compared with larger microcontrollers. With a 16-bit core and up to 16 MHz DCO, it provides more arithmetic headroom than 8-bit alternatives while maintaining lower power consumption than many 32-bit parts. The integrated Timer_A and USI reduce external peripheral count, lowering BOM and board area. The PDIP-20 package and wide voltage range (1.8?C3.6 V) make it easier to reuse designs across multiple product generations and battery types.

MSP430G2433IN20 Brand Info

The MSP430G2433IN20 is manufactured by Texas Instruments, a long-established semiconductor company known for low-power microcontrollers and analog ICs. TI??s MSP430 family emphasizes ultra-low power operation and integrated peripherals for industrial, portable, and consumer embedded applications.

FAQ

What is the supply voltage range?

The device operates from 1.8 V to 3.6 V. This allows safe operation from common single-cell and regulated supplies while supporting low-power battery designs.

Which package does this part use?

This variant is supplied in a 20-pin PDIP package (IN20), suitable for prototyping, through-hole assemblies, and legacy DIP-socket replacement.

Does it support hardware serial protocols?

Yes. The MCU includes a Universal Serial Interface (USI) that supports common protocols such as UART, SPI, and I2C, enabling versatile serial connectivity.

What low-power features are available?

The device provides several low-power modes that drop active current to microamp levels and reduce peripheral clocks. Use these modes to maximize battery life in standby or intermittent-sampling systems.

How many GPIOs are exposed?

Up to 16 general-purpose I/O pins are available, allowing direct connection to switches, LEDs, sensors, and external logic without extra port expander ICs.