HCC4031B Datasheet, PDF (3/12 Pages) STMicroelectronics – 64-STAGE STATIC SHIFT REGISTER

LOGIC DIAGRAM AND TRUTH TABLES
HCC/HCF4031B
INPUT CONTROL CIRCUIT
Data
Recirc.
Mode
1
X
0
0
X
0
X
1
1
X
0
1
Bit Into
Stage 1
1
0
1
0
TYPICAL STAGE
Data
CL
0
–/–
1
–/–
X
–\–
1 = HIGH LEVEL
Data + 1
0
1
NC
0 = LOW LEVEL
X = DON’T CARE
OUTPUT FROM Q’ (pin 5)
Data + 64
0
1
X
CL
Data + 64.5
–\–
0
–\–
1
–/–
NC
NC = NO CHANGE
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