MCU, 8-Bit 16KB Flash 20MHz 5V TQFP-32

ATMEGA168-20AU – 8-Bit AVR® Microcontroller – 20MHz, 16KB Flash – Microchip Technology

Upgrade your embedded designs with the high-performance ATMEGA168-20AU microcontroller from Microchip Technology. This robust 8-bit IC delivers exceptional processing efficiency with 16KB Flash memory and versatile I/O capabilities, ideal for energy-sensitive applications. Order from PCX for guaranteed authentic components, lightning-fast shipping, and dedicated technical support.

Key Features

• Core & Speed: 8-Bit AVR processor @ 20MHz clock frequency
• Memory: 16KB Flash, 1KB RAM, 512B EEPROM
• Voltage Range: 2.7V to 5.5V (low-power operation)
• I/O & Connectivity: 23 programmable I/O pins with I²C, SPI, UART/USART interfaces
• Robust Operation: -40°C to 85°C industrial temperature range
• Integrated Peripherals: Brown-out detection, Power-on Reset, PWM, Watchdog Timer

Technical Specifications

This surface-mount microcontroller (32-TQFP package) features an internal oscillator and 8-channel 10-bit ADC for precise analog measurements. Its Harvard architecture ensures efficient code execution, while the 2.7–5.5V operating range enables seamless battery-powered operation. The device supports In-System Programming (ISP) for flexible firmware updates.

Typical Applications

• Industrial control systems and sensor interfaces
• Consumer electronics and IoT edge devices
• Automotive accessories and battery management
• Home automation controllers and smart sensors
• Medical handheld diagnostic equipment

About Microchip Technology

Microchip Technology stands as a global leader in microcontroller and analog semiconductor solutions, renowned for innovation in embedded control systems. With over three decades of industry expertise, their products set benchmarks in power efficiency, reliability, and design flexibility across automotive, industrial, and consumer markets.

The company maintains rigorous quality certifications (IATF 16949, ISO 9001), ensuring components meet stringent performance and longevity standards. Microchip’s comprehensive development tools and documentation further simplify integration, making them a preferred partner for engineers worldwide.

About Microcontrollers

Microcontrollers (MCUs) serve as compact, self-contained computing systems on a single integrated circuit, combining processors, memory, and programmable I/O peripherals. They execute dedicated tasks in embedded systems, offering real-time control without the overhead of full operating systems.

MCUs like the AVR® series are fundamental in modern electronics due to their low power consumption, cost-effectiveness, and adaptability. From automating industrial machinery to enabling smart home devices, these components provide the intelligence behind countless innovations while minimizing development complexity and BOM costs.

Packaging Options

Available in industry-standard Tray packaging for automated assembly processes. Contact PCX for reel options or custom quantity requirements.

Frequently Asked Questions

Q: Is this MCU suitable for battery-powered devices?
A: Yes, its wide 2.7–5.5V operating range and sleep modes optimize power efficiency for portable applications.

Q: What development tools support the ATMEGA168?
A: Microchip provides free MPLAB® X IDE and Atmel Studio for coding, debugging, and programming.

Q: Can I replace older ATmega chips with this IC?
A: The ATMEGA168-20AU offers pin-compatibility with select ATmega variants – verify your schematic against the datasheet available at PCXCo.com.

Q: Does it include internal clock sources?
A: Yes, an internal calibrated RC oscillator eliminates need for external crystals in basic applications.

Q: What’s the difference between Flash and EEPROM memory?
A: Flash stores firmware (rewritable in blocks), while EEPROM retains smaller data sets (e.g., calibration values) with byte-level rewrite capability.

Q: How many PWM channels are available?
A: Six PWM outputs support motor control, dimming, and analog signal generation.

Product images are representational. Refer to datasheets for exact specifications.

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