CD54-74HC4514 Datasheet, PDF (6/14 Pages) Texas Instruments – HIGH-SPEED CMOS LOGIC 4-TO-16 LINE DECODER/DEMULTIPLEXER WITH INPUT LATCHES

CD54HC4514, CD74HC4514, CD74HC4515
Test Circuits and Waveforms (Continued)
t_rC_L
CLOCK
INPUT
90%
10%
t_H(H)
t_fC_L
50%
t_H(L)
DATA
INPUT
t_SU(H)
t_SU(L)
OUTPUT
t_REM
V_CC
SET, RESET
OR PRESET
t_TLH
90%
t_PLH
50%
t_THL
90%
50%
10%
t_PHL
IC
C_L
50pF
V_CC
GND
V_CC
50%
GND
GND
t_rC_L
CLOCK
INPUT
90%
10%
t_H(H)
t_fC_L
50%
t_H(L)
DATA
INPUT
t_SU(H)
t_SU(L)
OUTPUT
t_REM
V_CC
SET, RESET
OR PRESET
t_TLH
90%
t_PLH
50%
t_THL
90%
50%
10%
t_PHL
IC
C_L
50pF
V_CC
GND
V_CC
50%
GND
GND
FIGURE 4. HC SETUP TIMES, HOLD TIMES, REMOVAL TIME,
AND PROPAGATION DELAY TIMES FOR EDGE
TRIGGERED SEQUENTIAL LOGIC CIRCUITS
FIGURE 5. HC SETUP TIMES, HOLD TIMES, REMOVAL TIME,
AND PROPAGATION DELAY TIMES FOR EDGE
TRIGGERED SEQUENTIAL LOGIC CIRCUITS
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