需求
“Draw a 5 V three-input CMOS XNOR using transmission-gate stages with complementary A, B, and C inputs and final output Z.”
接著試試Add an output terminal.Add input inverters.
這張圖裡有什麼
看懂背後的決策。
01
Decompose XNOR into two cascaded transmission-gate XOR stages and a final inverter
02
Use external complementary inputs (A, A_b, B, B_b, C, C_b) to eliminate internal inverters for the first stage
03
Include one local inverter to generate X_b from the intermediate XOR output
Suitable when designing dedicated logic blocks in full-custom CMOS, optimizing for area and speed by avoiding pre‑built standard cells.