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.
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R12
Resistance
Resistance
R3
Resistance
100 Ω
J1
LED R1
Resistance
330Ω
R7
Resistance
Resistance
J2
R1
Resistance
1kΩ
R5
Resistance
100 Ω
Q1
R9
Resistance
Resistance
BZ1
Reset R2
Resistance
10kΩ
R2
Resistance
500 Ω
P3
Display Out
R4
Resistance
Resistance
R8
Resistance
Resistance
R13
Resistance
Resistance
R10
Resistance
Resistance
LED
R6
Resistance
Resistance
R11
Resistance
Resistance

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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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Controls