{"product_id":"atmega328p-pu-dip-28-avr-microcontroller-ic-chip","title":"ATMEGA328P-PU DIP-28 AVR Microcontroller IC Chip","description":"\u003ch2\u003eATMEGA328P-PU DIP-28 — 8-Bit AVR Microcontroller IC\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eATMEGA328P-PU\u003c\/strong\u003e is a high-performance, low-power 8-bit AVR RISC-based microcontroller in a DIP-28 through-hole package. Widely used in Arduino Uno boards and custom embedded projects, this IC delivers 32KB of in-system self-programmable flash memory, 2KB SRAM, and 1KB EEPROM — making it one of the most popular microcontrollers for hobbyists, students, and professional engineers alike.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eArchitecture:\u003c\/strong\u003e 8-bit AVR RISC — up to 20 MIPS throughput at 20 MHz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e DIP-28 (through-hole) — easy to breadboard and prototype\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlash Memory:\u003c\/strong\u003e 32KB (with 2KB used by bootloader if pre-loaded)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSRAM:\u003c\/strong\u003e 2KB \u0026amp; \u003cstrong\u003eEEPROM:\u003c\/strong\u003e 1KB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e 1.8V – 5.5V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eI\/O Pins:\u003c\/strong\u003e 23 programmable I\/O lines\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTimers:\u003c\/strong\u003e Two 8-bit timers\/counters and one 16-bit timer\/counter\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCommunication:\u003c\/strong\u003e USART, SPI, I²C (TWI) interfaces built in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eADC:\u003c\/strong\u003e 6-channel, 10-bit analog-to-digital converter\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow Power Modes:\u003c\/strong\u003e Multiple sleep modes for energy-efficient designs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCustomizable:\u003c\/strong\u003e Fully programmable via ISP, JTAG, or Arduino IDE\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × ATMEGA328P-PU DIP-28 Microcontroller IC\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eArduino-compatible projects \u0026amp; custom boards\u003c\/li\u003e\n  \u003cli\u003eEmbedded systems development \u0026amp; prototyping\u003c\/li\u003e\n  \u003cli\u003eRobotics, automation \u0026amp; sensor interfacing\u003c\/li\u003e\n  \u003cli\u003eDIY electronics, makers \u0026amp; STEM education\u003c\/li\u003e\n  \u003cli\u003eIndustrial control \u0026amp; home automation systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose This Microcontroller?\u003c\/h3\u003e\n\u003cp\u003eThe ATMEGA328P-PU is the backbone of countless embedded designs worldwide. Its DIP-28 form factor makes it perfect for breadboard prototyping, and its compatibility with the Arduino platform means you can get up and running fast using the Arduino IDE — no specialist equipment required. Whether you're replacing a chip, stocking your workbench, or building a new project from scratch, this microcontroller offers outstanding value and proven reliability.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/round-aluminum-wire-diy-jewelry-making-1mm-3mm\"\u003eRound Aluminum Wire 1mm–3mm | DIY Jewelry Making Wire\u003c\/a\u003e — great for custom wiring and craft enclosures\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/glow-in-the-dark-natural-stone-round-beads-diy-jewelry-making\"\u003eGlow in the Dark Natural Stone Round Beads | DIY Jewelry Making\u003c\/a\u003e — perfect for themed enclosure decorations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.epa.gov\/recycle\/used-lithium-ion-batteries\" target=\"_blank\" rel=\"noopener\"\u003eEPA guidance on lithium-ion battery handling\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the difference between ATMEGA328P-PU and ATMEGA328-PU?\u003c\/h4\u003e\n\u003cp\u003eA: The ATMEGA328\u003cstrong\u003eP\u003c\/strong\u003e-PU is the picoPower version of the ATMEGA328-PU. It features enhanced low-power sleep modes and slightly improved power management, making it the preferred choice for battery-operated or energy-sensitive designs. Both chips are functionally compatible and use the DIP-28 through-hole package.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this chip compatible with Arduino Uno?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The ATMEGA328P-PU is the exact microcontroller used on the official Arduino Uno board. If your chip comes pre-loaded with the Arduino bootloader, you can program it directly via the Arduino IDE using a USB-to-serial adapter. If it is a blank chip, you can burn the bootloader using an ISP programmer.\u003c\/p\u003e\n\u003ch4\u003eQ: Can I use this chip on a breadboard for prototyping?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. The DIP-28 through-hole package is specifically designed for breadboard and perfboard use, making the ATMEGA328P-PU one of the most beginner-friendly microcontrollers available. Simply insert it into a standard breadboard, connect power, a crystal oscillator, and decoupling capacitors, and you are ready to program and test your circuit.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the difference between ATMEGA328P-PU and ATMEGA328-PU?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The ATMEGA328P-PU is the picoPower version of the ATMEGA328-PU. It features enhanced low-power sleep modes and slightly improved power management, making it the preferred choice for battery-operated or energy-sensitive designs. Both chips are functionally compatible and use the DIP-28 through-hole package.\"}}, {\"@type\": \"Question\", \"name\": \"Is this chip compatible with Arduino Uno?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. 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