Datasheets
ATMEGA328-PU by:

RISC Microcontroller, 8-Bit, FLASH, AVR RISC CPU, 20MHz, CMOS, PDIP28, 0.300 INCH, GREEN, PLASTIC, DIP-28

Part Details for ATMEGA328-PU by Atmel Corporation

Results Overview of ATMEGA328-PU by Atmel Corporation

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Applications Education and Research Aerospace and Defense Agriculture Technology Robotics and Drones

ATMEGA328-PU Information

ATMEGA328-PU by Atmel Corporation is a Microcontroller.
Microcontrollers are under the broader part category of Microcontrollers and Processors.

Microcontrollers (MCUs) are small, low-power integrated circuits used to control embedded systems. Microcontrollers are primarily used to automate and control devices. Read more about Microcontrollers and Processors on our Microcontrollers and Processors part category page.

Price & Stock for ATMEGA328-PU

Part # Distributor Description Stock Price Buy
Quest Components RISC MICROCONTROLLER, 8-BIT, FLASH, AVR RISC CPU, 20MHZ, CMOS, PDIP28 2
  • 1 $4.3200
  • 3 $2.8800
$2.8800 / $4.3200 Buy Now
Vyrian Peripheral ICs 5061
RFQ

Part Details for ATMEGA328-PU

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ATMEGA328-PU Part Data Attributes

ATMEGA328-PU Atmel Corporation
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ATMEGA328-PU Atmel Corporation RISC Microcontroller, 8-Bit, FLASH, AVR RISC CPU, 20MHz, CMOS, PDIP28, 0.300 INCH, GREEN, PLASTIC, DIP-28
Rohs Code Yes
Part Life Cycle Code Transferred
Ihs Manufacturer ATMEL CORP
Part Package Code DIP
Package Description DIP-28
Pin Count 28
Reach Compliance Code compliant
HTS Code 8542.31.00.01
Core Architecture AVR
Device Core AVR
Clock Speed 20
Ram 2
Flash Memory 32
Can 0
Adc Channels 8
Adc Resolution 10
Has ADC YES
Additional Feature ALSO OPERATES AT 2.7 V MINIMUM SUPPLY AT 10 MHZ AND 1.8 V MINIMUM SUPPLY AT 4 MHZ
Address Bus Width
Bit Size 8
Boundary Scan NO
CPU Family AVR RISC
Clock Frequency-Max 20 MHz
DAC Channels NO
DMA Channels NO
External Data Bus Width
Format FIXED POINT
Integrated Cache NO
JESD-30 Code R-PDIP-T28
Length 34.671 mm
Low Power Mode YES
Number of External Interrupts 2
Number of I/O Lines 23
Number of Serial I/Os 1
Number of Terminals 28
Number of Timers 3
On Chip Data RAM Width 8
On Chip Program ROM Width 8
Operating Temperature-Max 85 °C
Operating Temperature-Min -40 °C
PWM Channels YES
Package Body Material PLASTIC/EPOXY
Package Code DIP
Package Equivalence Code DIP28,.3
Package Shape RECTANGULAR
Package Style IN-LINE
Qualification Status Not Qualified
RAM (bytes) 2048
ROM (words) 32768
ROM Programmability FLASH
Seated Height-Max 4.5724 mm
Speed 20 MHz
Supply Current-Max 12 mA
Supply Voltage-Max 5.5 V
Supply Voltage-Min 4.5 V
Supply Voltage-Nom 5 V
Surface Mount NO
Technology CMOS
Temperature Grade INDUSTRIAL
Terminal Form THROUGH-HOLE
Terminal Pitch 2.54 mm
Terminal Position DUAL
Width 7.62 mm
uPs/uCs/Peripheral ICs Type MICROCONTROLLER, RISC

Alternate Parts for ATMEGA328-PU

This table gives cross-reference parts and alternative options found for ATMEGA328-PU. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of ATMEGA328-PU, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
ATMEGA328-PU Microchip Technology Inc $2.4983 IC MCU 8BIT 32KB FLASH 28DIP ATMEGA328-PU vs ATMEGA328-PU

ATMEGA328-PU Related Parts

ATMEGA328-PU Frequently Asked Questions (FAQ)

  • The maximum clock frequency of ATMEGA328-PU is 20 MHz.

  • Yes, ATMEGA328-PU can operate at 3.3V, but the maximum clock frequency is reduced to 12 MHz.

  • The power consumption of ATMEGA328-PU in sleep mode is typically around 0.1-1.5 mA, depending on the sleep mode and clock source.

  • Yes, ATMEGA328-PU can be used with an external crystal oscillator, and it is recommended to use a crystal with a frequency of 8-12 MHz for optimal performance.

  • The maximum amount of flash memory that can be written to ATMEGA328-PU is 32 KB, and it can be written up to 10,000 times.

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