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MC74HC573AH View Datasheet(PDF) - ON Semiconductor

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MC74HC573AH Datasheet PDF : 8 Pages
1 2 3 4 5 6 7 8
MC74HC573A
tr
INPUT D
tPLH
Q
90%
50%
10%
90%
50%
10%
tTLH
SWITCHING WAVEFORMS
VCC
tf
VCC
LATCH
ENABLE
50%
GND
GND
tw
tPHL
tPLH
tPHL
tTHL
Q
50%
Figure 1.
Figure 2.
OUTPUT
3.0 V
ENABLE
50%
VALID
GND
VCC
tPZL tPLZ
HIGH
INPUT D
50%
GND
Q
50%
IMPEDANCE
tPZH tPHZ
10% VOL
LATCH
tSU
th
50%
VCC
90% VOH
ENABLE
GND
Q
1.3 V
HIGH
IMPEDANCE
Figure 3.
Figure 4.
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
CL*
*Includes all probe and jig capacitance
Figure 5. Test Circuit
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
1 k
CL*
CONNECT TO VCC WHEN
TESTING tPLZ AND tPZL.
CONNECT TO GND WHEN
TESTING tPHZ AND tPZH.
*Includes all probe and jig capacitance
Figure 6. Test Circuit
D0 2
D1 3
D2 4
D3 5
D4 6
D5 7
D6 8
D7 9
EXPANDED LOGIC DIAGRAM
D
Q
LE
D
Q
LE
D
Q
LE
D
Q
LE
D
Q
LE
D
Q
LE
D
Q
LE
D
Q
LE
19 Q0
18 Q1
17 Q2
16 Q3
15 Q4
14 Q5
13 Q6
12 Q7
LATCH ENABLE 11
OUTPUT ENABLE 1
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