Refer to Figure 7-17, where a 74HC190 has the input signals given in the timing diagram applied. The parallel data inputs are permanently connected as 0111. Assume the counter is initially in the 0000 state, and determine the counter output waveforms.

Figure 7-17

Transcribed Image Text:

CLK DV/U LOAD CTEN QD QC QB QA MAX/MIN RCO to 1₁ T I 1 2 I 1 I T T T T + 1 T T I 1 1 I 1 T T I 1 I T I I T T JUUL CTEN D/U LOAD LII T 1₂ 13 I T T I 0 1 1 1 T CLK CTEN D/U d LOAD DCBA 74HC190 (a) (b) RCO Max Min I T I T 1 T I T T 1 1 QD QC QB T I T T I T I I T T 1 I T T 11 I I T T 1 T 1 T T 1 T 1 +