ATmega328P-PU 28-Pin 8-Bit AVR Microcontroller IC

The ATmega328P-PU is a 28-pin through-hole 8-bit AVR microcontroller featuring 32KB Flash, 2KB SRAM, 1KB EEPROM, up to 20MHz operation, 23 programmable I/O lines, 10-bit ADC, USART, SPI, and TWI/I²C. Suitable for embedded electronics, prototyping, standalone controller circuits, and compatible Arduino-based development applications.

Description

The ATmega328P-PU 28-Pin 8-Bit AVR Microcontroller IC is a low-power AVR microcontroller designed for embedded control, electronics development, automation, prototyping, and general-purpose microcontroller applications.

This version comes in a 28-pin through-hole PDIP package, making it convenient for breadboard prototyping, IC sockets, development circuits, and through-hole PCB designs.

The ATmega328P provides 32KB of In-System Programmable Flash memory, 2KB SRAM, and 1KB EEPROM. It supports operation at frequencies up to 20MHz and provides 23 programmable I/O lines along with integrated peripherals including timers/counters, PWM channels, a 10-bit ADC, USART, SPI, and two-wire serial interface (TWI/I²C).

The ATmega328P is also well known for its use in the Arduino Uno ecosystem. This product, however, is the standalone ATmega328P-PU microcontroller IC, not a complete Arduino Uno board. Appropriate programming, clock, power, reset, and supporting circuitry may be required depending on the intended application.

Key Features

• ATmega328P 8-bit AVR microcontroller
• Exact ordering variant: ATmega328P-PU
• 28-pin through-hole PDIP package
• 32KB In-System Programmable Flash
• 2KB SRAM
• 1KB EEPROM
• Up to 20MHz operating frequency
• 23 programmable I/O lines
• 10-bit ADC
• USART serial communication
• SPI interface
• TWI / I²C-compatible serial interface
• Multiple timers/counters
• PWM capability
• In-System Programming support
• Suitable for embedded and standalone microcontroller projects
• Commonly associated with Arduino Uno development

Technical Specifications

Applications

• Embedded electronics projects
• Microcontroller development
• Standalone controller circuits
• Breadboard prototyping
• Sensor interfacing
• Robotics projects
• Automation and control systems
• Data acquisition projects
• Digital and analog control circuits
• LED and display control
• Motor-control logic
• Serial communication projects
• Educational electronics projects
• Custom Arduino-compatible circuits
• Replacement or development applications requiring an ATmega328P-PU

Compatibility

The ATmega328P-PU can be used in circuits and development platforms designed for the ATmega328P and its 28-pin PDIP package, provided the electrical, clock, programming, and pin requirements of the application are satisfied.

The ATmega328P is used within the Arduino ecosystem and is associated with classic Arduino Uno ATmega328P-based designs. A standalone ATmega328P-PU is not itself an Arduino board and may require a suitable bootloader, programmer, clock source, power supply, reset circuitry, and other external components depending on how it is used.

Package Contents

• 1 × ATmega328P-PU 28-Pin Microcontroller IC

Buy in Pakistan

Buy the ATmega328P-PU microcontroller IC in Pakistan from Chip.pk for embedded electronics, prototyping, microcontroller development, repair, educational, and custom controller projects.

Its 28-pin through-hole package makes the ATmega328P-PU particularly practical for breadboards, IC sockets, custom PCBs, and standalone AVR development where a complete development board is not required.

Datasheet

Atmel products

FAQs

1. What is the ATmega328P-PU?
The ATmega328P-PU is a 28-pin, 8-bit AVR microcontroller IC with 32KB Flash, 2KB SRAM, 1KB EEPROM, programmable I/O, ADC, timers, PWM, USART, SPI, and TWI/I²C functionality.

2. What is the difference between ATmega328P and ATmega328P-PU?
ATmega328P identifies the microcontroller family/device, while ATmega328P-PU identifies a specific ordering/package variant. The -PU version supplied here is a 28-pin through-hole PDIP device.

3. How many pins does the ATmega328P-PU have?
The ATmega328P-PU in this listing has 28 pins in a through-hole PDIP package.

4. How much memory does the ATmega328P have?
It provides 32KB ISP Flash program memory, 2KB SRAM, and 1KB EEPROM.

5. What is the maximum clock speed of the ATmega328P-PU?
The device supports operation up to 20MHz, subject to the manufacturer's voltage and operating-condition requirements. The standalone IC does not include an external 20MHz crystal.

6. What is the operating voltage of the ATmega328P?
The ATmega328P supports an operating voltage range of 1.8V to 5.5V. Permitted operating frequency depends on supply voltage and other datasheet conditions.

7. Does the ATmega328P-PU support I2C, SPI and serial communication?
Yes. The microcontroller provides TWI/I²C, SPI, and USART communication interfaces.

8. Can the ATmega328P-PU be used with Arduino?
Yes. The ATmega328P is widely used in the Arduino ecosystem and ATmega328P-based Arduino Uno designs. However, this product is a standalone microcontroller IC, not a complete Arduino board.

9. Does this ATmega328P-PU come with an Arduino bootloader?
A pre-installed Arduino bootloader should not be assumed unless Chip.pk specifically verifies and states that for the supplied stock. A standalone IC may require programming before use.

10. Can I use the ATmega328P-PU on a breadboard?
Yes. Its through-hole 28-pin PDIP package is suitable for compatible breadboards and DIP IC sockets.

11. Is this the SMD version of the ATmega328P?
No. This listing is for the 28-pin through-hole PDIP version, not an SMD package.

12. Is the ATmega328P-PU a complete Arduino Uno?
No. It is only the microcontroller IC. A standalone circuit may require suitable power, clock, reset, programming, and other supporting components.