Product Description The ATmega328P-PU PDIP-28 is a classic 8-bit AVR microcontroller in a 28-pin through-hole PDIP package. It offers 32 KB of flash program memory, 2 KB SRAM, 1 KB EEPROM, and runs up to 20 MHz. Famous for being used in many Arduino boards (Uno, Nano, Pro Mini etc.), it supports analog-digital conversions, PWM outputs, SPI, I2C, UART, and multiple sleep modes for power saving. At PowerMark Solution, we offer original genuine ATmega328P-PU chips so you can build or repair Arduino-compatible boards, embedded systems, or any projects needing a reliable microcontroller. Features 32 KB Flash memory (in-system programmable). 2 KB SRAM. 1 KB EEPROM for non-volatile data. Operates at up to 20 MHz clock speed (at 5V). Voltage range approx. 1.8V to 5.5V depending on speed. 6 channels of 10-bit ADC. Multiple timer/counters: 8-bit and 16-bit. PWM support (6 channels). Serial interfaces: SPI, UART, I2C. Multiple sleep & power-saving modes. Applications For use in Arduino Uno, Pro Mini, Nano replacements or builds. Repairing or rebuilding hobby boards. Learning and educational purposes in microcontroller programming. Sensor-driven embedded systems (analog measurements). Timing, control and PWM based circuitry. Any low-cost 8-bit MCU project. ATmega328P-PU in PDIP-28 — classic AVR microcontroller for Arduino boards and embedded applications. Technical Specifications Specification Details Microcontroller ATmega328P Package Type PDIP-28 (28-pin through hole) Flash Memory 32 KB SRAM 2 KB EEPROM 1 KB Max Clock Speed 20 MHz (at 5V) Operating Voltage ~1.8V ~ 5.5V (depends on clock) Analog Inputs 6 channels, 10-bit ADC PWM Channels 6 Serial Interfaces SPI, UART, I2C Other Features Watchdog timer, internal oscillator, multiple sleep modes Package Includes 1 × ATmega328P-PU PDIP-28 Microcontroller Chip Documentation ATmega328P data sheet. Reference pin-layout for PDIP-28. Example usage: flashing via Arduino bootloader, ISP, or standalone circuits. FAQs Q1: Will this chip work in Arduino Uno / Nano / Pro Mini?A: Yes — it is the same ATmega328P part used in those boards (for PDIP package / DIP-mountable boards). Q2: What supply voltage is safe?A: It depends on clock speed — up to about 5V for 16-20 MHz; if you use lower voltage (e.g. 3.3V), reduce clock speed to maintain reliability. Q3: How many analog inputs does it have?A: It has 6 channels of 10-bit ADC in this PDIP package. Q4: Is there bootloader support?A: Many ATmega328P-PU chips are shipped with Arduino bootloader installed, but if not you can burn bootloader via ISP programmer. Q5: Can it save data when powered off?A: Yes, via the EEPROM (1 KB) which retains data without power.
