Mcu, 8Bit, Atmega, 20Mhz, Dip-28; Product Range:Avr Atmega Family Atmega16X Series Microcontrollers; Cpu Speed:20Mhz; Program Memory Size:16Kb; Ram Memory Size:1Kb; No. Of Pins:28Pins; Mcu Case Style:Dip; No. Of I/O S:23I/O S; Rohs Compliant: Yes |Microchip ATMEGA168-20PU

ATMEGA168-20PU – 8-bit AVR® Microcontroller with 16KB Flash – Microchip Technology

Optimize your embedded designs with the ATMEGA168-20PU microcontroller from Microchip Technology. This high-performance 8-bit IC delivers robust processing capabilities at 20MHz with ultra-low power consumption (2.7-5.5V), making it ideal for energy-sensitive applications. Source this reliable component exclusively from PCX for guaranteed authenticity and same-day shipping.

Key Features

• Core Architecture: 8-Bit AVR RISC processor
• Clock Speed: 20MHz maximum frequency
• Memory Configuration: 16KB Flash, 1KB SRAM, 512B EEPROM
• Voltage Range: 2.7V – 5.5V (wide operating range)
• I/O Capabilities: 23 programmable I/O lines
• Communication Interfaces: I2C, SPI, UART/USART
• Industrial Temperature Rating: -40°C to +85°C

Technical Specifications

The ATMEGA168-20PU features a Through-Hole 28-PDIP package (7.62mm width) with integrated 10-bit ADC (6 channels) and multiple built-in peripherals including Power-on Reset (POR), Brown-out Detection (BOD), Pulse Width Modulation (PWM), and Watchdog Timer (WDT). Its Harvard architecture enables single-cycle instruction execution while the non-volatile Flash memory ensures secure program storage. Internal oscillator eliminates external clock components.

Typical Applications

• Industrial control systems and sensor interfaces
• Consumer electronics and smart home devices
• Automotive accessory modules
• IoT edge nodes and wearables
• Embedded motor control units

About Microchip Technology

Microchip Technology stands as a global leader in microcontroller and analog semiconductor solutions, with over three decades of innovation in embedded control systems. Their AVR® product line, renowned for power efficiency and processing performance, serves mission-critical applications across aerospace, medical, and industrial sectors.

The company maintains rigorous quality certifications including IATF 16949 for automotive and ISO 9001 for industrial markets. Microchip’s commitment to long-term product lifecycle support ensures design stability and component availability, minimizing requalification costs for OEMs.

About Microcontrollers

Microcontrollers serve as the computational “brain” in embedded electronic systems, integrating processor cores, memory, and programmable I/O on a single chip. Unlike general-purpose processors, MCUs deliver deterministic real-time control with minimal power consumption, enabling autonomous operation in standalone devices.

Modern MCUs like the ATmega series feature sophisticated peripherals that reduce component count and simplify PCB layouts. Their reprogrammable memory allows field updates and calibration adjustments, making them indispensable for adaptive systems in automation, consumer electronics, and emerging IoT applications where space, power, and cost constraints are critical.

Packaging

Available in protective tube packaging for secure handling and automated assembly. Contact PCX for reel packaging alternatives.

Frequently Asked Questions

Question: What development tools support this microcontroller?
Answer: Compatible with Microchip’s MPLAB® X IDE and Atmel Studio using AVRISP mkII or JTAGICE3 programmers.

Question: Does this IC require external voltage regulation?
Answer: No, its wide 2.7-5.5V operating range supports direct battery or USB power connection.

Question: Is the internal oscillator factory-calibrated?
Answer: Yes, ±1% accuracy at 25°C/5V eliminates need for external crystals in most applications.

Question: Can it handle real-time control tasks?
Answer: Absolutely, with 20 MIPS throughput and hardware PWM peripherals for precise timing operations.

Question: What distinguishes DDR3L SDRAM from this component?
Answer: DDR3L is volatile memory for data storage, while microcontrollers like ATMEGA168 integrate non-volatile program memory with processing capabilities.

Question: How long will Microchip maintain this product’s availability?
Answer: As an active part of their extended longevity program, Microchip guarantees minimum 10-year supply continuity.

Datasheet available at PCXCo.com | Image may differ from actual product

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