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CD54HC73_07 Datasheet, PDF (7/15 Pages) Texas Instruments – Dual J-K Flip-Flop with Reset Negative-Edge Trigger
CD54HC73, CD74HC73, CD74HCT73
Test Circuits and Waveforms (Continued)
trCL
CLOCK
INPUT
DATA
INPUT
tSU(H)
90%
10%
tH(H)
tfCL
50%
tH(L)
tSU(L)
VCC
GND
VCC
50%
GND
OUTPUT
tREM
VCC
SET, RESET
OR PRESET
tTLH
90%
tPLH
50%
tTHL
90%
50%
10%
tPHL
GND
IC
CL
50pF
trCL
CLOCK
INPUT
2.7V
0.3V
tfCL
1.3V
tH(H)
tH(L)
DATA
INPUT
tSU(H)
1.3V
1.3V
1.3V
tSU(L)
OUTPUT
tREM
3V
SET, RESET
OR PRESET
tTLH
90%
1.3V
tPLH
1.3V
tTHL
90%
1.3V
10%
tPHL
IC
CL
50pF
3V
GND
3V
GND
GND
FIGURE 6. HC SETUP TIMES, HOLD TIMES, REMOVAL TIME,
AND PROPAGATION DELAY TIMES FOR EDGE
TRIGGERED SEQUENTIAL LOGIC CIRCUITS
FIGURE 7. HCT SETUP TIMES, HOLD TIMES, REMOVAL TIME,
AND PROPAGATION DELAY TIMES FOR EDGE
TRIGGERED SEQUENTIAL LOGIC CIRCUITS
7