Schematic Design for ATmega328P

Worked

flux

Work done
  • Updated project description to reflect ATmega328P integration
  • Added and configured components:
    • U1 (ATmega328P-PU)
    • Y1 (16 MHz crystal)
    • C1, C2 (22 pF load capacitors)
    • R1 (10 kΩ reset pull-up)
    • J1 (2-pin screw terminal)
  • Connected nets:
    • U1 VCC & AVCC → +5V net
    • U1 pins 8 & 22 → GND net
    • U1 XTAL1 → Y1 pin 1; XTAL2 → pin 2
    • Y1 pins to C1 & C2 then to GND
    • U1 RESET → R1 → +5V net
    • J1 pin 1 → +5V net; pin 2 → GND net
Success criteria
  • ✅ ATmega328P-PU pins (VCC, AVCC to +5V; pins 8 & 22 to GND) correctly connected
  • ✅ 16 MHz crystal with 22 pF capacitors to GND
  • ✅ 10 kΩ pull-up resistor on RESET to +5V
  • ✅ 2-pin screw terminal for +5V/GND input
  • ✅ All nets implicitly created via connections
All tasks are complete and success criteria are met.
Next step: Perform an ERC/DRC review of the schematic for any electrical or connectivity issues, then proceed to prepare the PCB layout.
Vin
R12
Resistance
Resistance
16Mhz Oscillator
R3
Resistance
100 Ω
C2
Capacitance
22 pF
J1
LED R1
Resistance
330Ω
R7
Resistance
Resistance
R1
Resistance
1kΩ
R5
Resistance
100 Ω
R9
Resistance
Resistance
Reset R2
Resistance
10kΩ
R2
Resistance
500 Ω
R8
Resistance
Resistance
R10
Resistance
Resistance
R6
Resistance
Resistance
C3
Capacitance
22 pF
R11
Resistance
Resistance
Keypad In
J2
7508
Q1
BZ1
P3
GND
Display Out
Right Sensor
R4
Resistance
Resistance
SW1
R13
Resistance
Resistance
LED
Left Sensor
ATmega328P
Not Recommended for New Designs

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Documents

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    Assets

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    Classic Black Holodeck 9023 new thumbnail
    ATmega328P 5V External-Powered Clock and Reset Core (16 MHz Crystal, Screw-Terminal Input)

    Properties

    Diagram
    


  
    
  
  
    
  

























"External node_5V Power Input"
"+5V Net"
"GND Net"
"ATmega328P-PU"
"16 MHz Crystal"
"22pF Capacitor"
"22pF Capacitor"
"10k Reset Pull-up"
"2-pin Screw Terminal"

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