Microchip ATMEGA328-PU

MCU 8-bit ATmega AVR RISC 32KB Flash 2.5V/3.3V/5V 28-Pin PDIP - Rail/Tube
Production

Price and Stock

Authorized Distributors
Non-Authorized Stocking Distributors
Non-Authorized Dealers

Technical Specifications

Physical
Case/PackagePDIP
Contact PlatingTin
MountThrough Hole
Number of Pins28
Technical
Core ArchitectureAVR
Data Bus Width8 b
Frequency20 MHz
Interface2-Wire, I2C, SPI, UART, USART
Max Frequency20 MHz
Max Operating Temperature85 °C
Max Supply Voltage5.5 V
Memory Size32 kB
Memory TypeFLASH
Min Operating Temperature-40 °C
Min Supply Voltage1.8 V
Number of ADC Channels6
Number of I2C Channels1
Number of I/Os23
Number of Programmable I/O23
Number of PWM Channels6
Number of SPI Channels1
Number of Timers/Counters3
Oscillator TypeInternal
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
RAM Size2 kB
Schedule B8542310000
Watchdog TimerYes
Dimensions
Height4.572 mm
Length34.8 mm
Width7.49 mm

Documents

Download datasheets and manufacturer documentation for Microchip ATMEGA328-PU.

Microchip
Datasheet653 pages3 years ago
element14 APAC
Datasheet50 pages26 years ago
Datasheet555 pages11 years ago
Future Electronics
Datasheet662 pages5 years ago
Datasheet0 pages0 years ago
Electro Sonic
Datasheet445 pages6 years ago
Newark
Datasheet31 pages26 years ago
Datasheet567 pages12 years ago
Datasheet566 pages13 years ago
TME
Datasheet39 pages26 years ago
Datasheet0 pages0 years ago
Datasheet0 pages0 years ago
Upverter
Datasheet35 pages26 years ago
Jameco
Datasheet26 pages26 years ago
SHENGYU ELECTRONICS
Datasheet0 pages0 years ago

Inventory History

3 month trend:
-5.34%

Supply Chain

Lifecycle StatusProduction (Last Updated: 3 years ago)

Engineering Resources

View Evaluation kits and Reference designs for Microchip ATMEGA328-PU.

Related Parts

Descriptions

Descriptions of Microchip ATMEGA328-PU provided by its distributors.

MCU 8-bit ATmega AVR RISC 32KB Flash 2.5V/3.3V/5V 28-Pin PDIP - Rail/Tube
RISC Microcontroller, 8-Bit, FLASH, AVR RISC CPU, 20MHz, CMOS, PDIP28
ATmega Series 32 KB Flash 2 KB SRAM 20 MHz 8-Bit Microcontroller - DIP-28
MCU, 8BIT, ATMEGA, 20MHZ, DIP-28; Product Range: AVR ATmega Family ATmega328 Series Microcontrollers; CPU Speed: 20MHz; Program Memory Size: 32KB; RAM Memory Size: 2KB; No. of Pins: 28Pins; MCU Case Style: DIP; No. of I/O's: 23
Device Core = AVR / Data Bus Width Bit = 8 / Instruction Set Architecture = RISC / Family Name = ATmega / Clock Frequency Max. MHz = 20 / Program Memory Type = Flash / Program Memory Size KB = 32 / Data Memory Size KB = 1 / RAM Memory Size KB = 2 / Interfaces = I²C / Interfaces = SPI / Interfaces = UART / ADC Channels = 6 / ADC Resolution Bit = 10 / DAC Resolution Bit = 10 / Number of Programmable I/Os = 23 / Number of Timers/Counters = 3 / Comparators = 1 / Supply Voltage Min. V = 1.8 / Supply Voltage Max. V = 5.5 / Operating Temperature Min. °C = -40 / Operating Temperature Max. °C = 85 / Package Type = PDIP / Pins = 28 / Mounting Type = Through Hole / Packaging = Tube / Length mm = 34.8 / Width mm = 7.49 / Height mm = 4.07

Manufacturer Aliases

Microchip has several brands around the world that distributors may use as alternate names. Microchip may also be known as the following names:

  • Microchip Technology
  • MICROCHI
  • MICROCHIP TECHNOLOGY INC
  • MICROC
  • MICROCH
  • MICROCHIP TECH
  • MCHP
  • MCRCH
  • MCP
  • MICROHIP
  • MICROSHIP
  • MICCHP
  • MTech
  • Microchip Technology / Atmel
  • MICROCHP
  • Microchip Technologies
  • Microchip / Microsemi
  • Atmel/Microchip
  • MICORCHIP
  • MICRIOCHIP
  • Atmel (Microchip Technology)
  • MICROCHIP (ATMEL)
  • MICHROCHIP
  • MICROCHIP TECHNOLOGY (VA)
  • MICROCHIPDIRECT

Part Number Aliases

This part may be known by these alternate part numbers:

  • ATMEGA328-PU.
  • ATMEGA328P U
  • ATMEGA328PU

Technical Specifications

Physical
Case/PackagePDIP
Contact PlatingTin
MountThrough Hole
Number of Pins28
Technical
Core ArchitectureAVR
Data Bus Width8 b
Frequency20 MHz
Interface2-Wire, I2C, SPI, UART, USART
Max Frequency20 MHz
Max Operating Temperature85 °C
Max Supply Voltage5.5 V
Memory Size32 kB
Memory TypeFLASH
Min Operating Temperature-40 °C
Min Supply Voltage1.8 V
Number of ADC Channels6
Number of I2C Channels1
Number of I/Os23
Number of Programmable I/O23
Number of PWM Channels6
Number of SPI Channels1
Number of Timers/Counters3
Oscillator TypeInternal
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
RAM Size2 kB
Schedule B8542310000
Watchdog TimerYes
Dimensions
Height4.572 mm
Length34.8 mm
Width7.49 mm

Documents

Download datasheets and manufacturer documentation for Microchip ATMEGA328-PU.

Microchip
Datasheet653 pages3 years ago
element14 APAC
Datasheet50 pages26 years ago
Datasheet555 pages11 years ago
Future Electronics
Datasheet662 pages5 years ago
Datasheet0 pages0 years ago
Electro Sonic
Datasheet445 pages6 years ago
Newark
Datasheet31 pages26 years ago
Datasheet567 pages12 years ago
Datasheet566 pages13 years ago
TME
Datasheet39 pages26 years ago
Datasheet0 pages0 years ago
Datasheet0 pages0 years ago
Upverter
Datasheet35 pages26 years ago
Jameco
Datasheet26 pages26 years ago
SHENGYU ELECTRONICS
Datasheet0 pages0 years ago

Compliance

Environmental Classification
Lead FreeLead Free
Radiation HardeningNo
REACH SVHCNo SVHC
RoHSCompliant
Compliance Statements