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atmega328pb-microcontroller

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Important Note

This entire repo was AI created - including all of the data within. The intent was to A) help me with my personal electronics inventory; and B) see how I could use AI to make that process a bit easier. DO NOT TRUST!

Details

The Microchip ATMEGA328PB is an 8-bit AVR RISC microcontroller featuring 32KB of In-System Programmable Flash memory, 2KB of SRAM, and 1KB of EEPROM. This enhanced version of the popular ATmega328P includes additional features such as a second UART, additional SPI port, and improved analog capabilities. The TQFP-32 surface-mount package makes it ideal for compact embedded applications.

Description

The ATMEGA328PB is a high-performance, low-power AVR 8-bit microcontroller based on the advanced RISC architecture. It executes powerful instructions in a single clock cycle, achieving throughputs approaching 1 MIPS per MHz. The device features 32KB of Flash program memory, 2KB of SRAM, and 1KB of EEPROM for data storage. It supports multiple communication interfaces including UART, SPI, and I2C/TWI, making it suitable for a wide range of applications.

Specifications

  • Type: 8-bit AVR RISC Microcontroller
  • Flash Memory: 32KB (In-System Programmable)
  • SRAM: 2KB
  • EEPROM: 1KB
  • Package: TQFP-32 (32-pin Thin Quad Flat Pack)
  • Supply Voltage: 1.8V to 5.5V
  • Maximum Clock Speed: 20MHz
  • GPIO Pins: 23 programmable I/O lines
  • Timers: 3 (two 8-bit, one 16-bit)
  • ADC: 8-channel 10-bit Analog-to-Digital Converter
  • Communication Interfaces:
    • 2 UART (Serial ports)
    • 2 SPI ports
    • 1 I2C/TWI interface
  • Operating Temperature: -40°C to +85°C
  • Power Consumption:
    • Active: ~5mA at 5V, 20MHz
    • Idle: ~1.6mA
    • Power-down: ~20µA

Features

  • Advanced RISC Architecture (131 Powerful Instructions)
  • Single-cycle Instruction Execution
  • 32KB In-System Programmable Flash
  • 2KB SRAM, 1KB EEPROM
  • 8-channel 10-bit ADC
  • Dual UART (USART)
  • Dual SPI Ports
  • I2C/TWI Interface
  • 3 Programmable Timer/Counters
  • Programmable Watchdog Timer
  • Power-saving Sleep Modes
  • Internal Oscillator Options
  • Brown-out Detection
  • Analog Comparator

Applications

  • Arduino-compatible microcontroller projects
  • Embedded systems and IoT devices
  • Industrial control systems
  • Home automation
  • Robotics and motor control
  • Data acquisition systems
  • Sensor interfaces
  • Consumer electronics
  • Educational projects

Technical Notes

  • The ATMEGA328PB is an enhanced version of the ATMEGA328P with additional UART and SPI ports
  • Fully compatible with Arduino bootloaders and development environment
  • Can be programmed via ISP (In-System Programming), JTAG, or bootloader
  • Supports multiple clock sources: internal RC oscillator, external crystal, or external clock
  • Excellent for prototyping and production applications
  • Wide availability and extensive community support
  • Date code “1611” indicates 16th week of 2011 manufacturing date
  • AU suffix indicates TQFP-32 package variant

Pin Configuration

The ATMEGA328PB in TQFP-32 package features:

  • 23 programmable I/O pins (Port B, C, D)
  • 8 ADC input pins
  • 2 UART ports
  • 2 SPI ports
  • I2C/TWI interface
  • Power and ground pins

Tags

ATMEGA328PB, ATmega, AVR, microcontroller, 8-bit, RISC, 32KB Flash, TQFP-32, Microchip, Atmel, SMT

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