Minimalist 2-Bit Up Counter Design
Thought for 6 sec
I’ll build a minimal 2-bit synchronous JK-counter schematic, add a clock/source setup suitable for simulation, then run/prepare verification for the 00→01→10→11 count sequence.
Worked for 1 min 7 sec
Logic ICs and LEDs are added; I’m checking the exact pin names now so the counter nets connect correctly.
Worked for 5 mins 55 sec
Built the 2-bit synchronous JK counter schematic and renamed the project “2-Bit Synchronous Counter.” It uses an SN74LS109AN dual JK flip-flop, SN74LS08N AND gate, shared
CLK, Q0/Q1 nets, and LED indicators.Verification passed: simulated edge samples show 00 → 01 → 10 → 11 → 00 → 01 → 10, matching the expected up-counter sequence. ERC checks for floating/undriven/power/no-connect issues came back clean.
Suggested next steps:
- Add a visible reset input so the counter always starts at
00. - Add a clock source block/switch symbol for easier manual testing.
- Place the parts on a small PCB if you want to build it physically.
Add reset and layout
Add reset input
Add clock control
Place PCB parts
Run full review
