In the circuit , how to realize the change of 163 in counting system?
A: 163 chip D0-D3 pin level change, with LD signal
B: 163 chip Q0-Q3 pin level change, cooperate with LD pin
C: 164 chip QA-QH pin level change, cooperate with CLK
D: Clock square wave change
A: 163 chip D0-D3 pin level change, with LD signal
B: 163 chip Q0-Q3 pin level change, cooperate with LD pin
C: 164 chip QA-QH pin level change, cooperate with CLK
D: Clock square wave change
举一反三
- The economy's inflation rate is the（ ）. A: change in the gross domestic product from the previous period. B: percentage change in the price level from the previous period. C: price level in the current period. D: change in the price level from the previous period.
- Variable costs are costs that change with the level of production.
- In the short run, the impact of an increase in the money supply on the price level and real output will be: Price level Real output（） ①A. Increase Increase ②B. Increase No change ③C. No change Increase A: ① B: ② C: ③
- Hotels, like airlines, tend to change room rates according to the level of demand.
- The CD40110 is currently in the subtraction count state, but the digital tube occasionally adds a few times. What is the most possible reason? A: The input pulse is connected to the CT B: The addition count pin is not connected to a fixed level C: The subtraction counting pin is not connected D: The voltage is unstable