| 摘要 |
PURPOSE:To provide a 5-input adder which shorten the delay of a critical path. CONSTITUTION:The 5-input adder 10 has five input signals 14-18, two carry input signals 19 and 110, two carry output signals 111 and 112, one carry signal 114, and one sum signal 113. One of the carry output signals is a function of five input signals. The other carry output signal is a function of the five input signals and one carry input signal. The sum signal and carry signals are a function of the five inputs signals and two carry input signals. |
