ATMEGA328PB - Electronic component Microchip - Free user manual and instructions
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| Product Type | Microcontroller |
| Brand | Microchip |
| Model | ATMEGA328PB |
| Package | 32-pin TQFP or 32-pin QFN |
| Dimensions | 7 x 7 mm (TQFP) or 5 x 5 mm (QFN) |
| Weight | Approximately 1.5 g (TQFP) |
| Operating Voltage | 1.8V to 5.5V |
| CPU Speed | Up to 20 MHz |
| Flash Memory | 32 KB |
| SRAM | 2 KB |
| EEPROM | 1 KB |
| Digital I/O Pins | 27 |
| Analog Input Pins | 8 |
| Timers | 3 (two 8-bit, one 16-bit) |
| Communication Interfaces | SPI, I2C, USART |
| Main Functions | Embedded control, sensor interfacing, PWM generation, analog-to-digital conversion |
| Maintenance | Keep away from moisture and static discharge. Store in anti-static bag. |
| Cleaning | Use isopropyl alcohol and a soft brush. Avoid abrasive cleaners. |
| Safety | Operate within specified voltage and temperature ranges. Use appropriate current limiting. |
| Spare Parts / Repairability | Replacement components available through distributors. Not user-serviceable; requires professional soldering. |
| General Information | Enhanced version of ATmega328P with additional timer and improved EMC performance. |
Frequently Asked Questions - ATMEGA328PB Microchip
What is the ATmega328PB?
The ATmega328PB is a low-power, high-performance 8-bit AVR RISC-based microcontroller from Microchip, featuring 32 KB Flash, 2 KB SRAM, and 1 KB EEPROM.
What is the operating voltage range?
The operating voltage range is 1.8V to 5.5V, allowing both low-voltage and standard 5V operation.
Can I program the ATmega328PB using Arduino IDE?
Yes, the ATmega328PB is compatible with the Arduino ecosystem. You can use a board like the Arduino Uno or a dedicated programmer with the appropriate board package.
What is the maximum clock speed?
The maximum clock speed is 20 MHz at 5V. At lower voltages, the maximum frequency decreases.
How many PWM channels does it have?
It has up to 6 PWM channels from the three timers, depending on the output compare units used.
Is the ATmega328PB pin-compatible with ATmega328P?
The ATmega328PB has a different pinout due to additional functionality. It is not directly drop-in compatible without board modifications.
What are the power saving modes?
It supports multiple sleep modes including Idle, ADC Noise Reduction, Power-down, Power-save, Standby, and Extended Standby to minimize power consumption.
How do I connect an external crystal?
Connect the crystal between pins XTAL1 (PB6) and XTAL2 (PB7) with appropriate loading capacitors as specified in the datasheet.
What communication interfaces are available?
The microcontroller has SPI, I2C (TWI), and USART for serial communication. It also supports master/slave SPI.
How can I protect the device from static discharge?
Use anti-static packaging, grounding straps, and work on a conductive mat. Handle the device by the edges and avoid touching the pins.
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USER MANUAL ATMEGA328PB Microchip
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Product information
Brand : Microchip
Model : ATMEGA328PB
Category : Electronic component