MC74HC273ADT_00 查看數據表（PDF） - ON Semiconductor
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MC74HC273ADT_00 Datasheet PDF : 8 Pages
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MC74HC273A
SWITCHING WAVEFORMS
tr
tf
tw
CLOCK
90%
50%
10%
VCC
RESET
50%
GND
VCC
GND
tw
tPHL
90%
Q 50%
10%
1/fmax
tPLH
tPHL
tTLH
tTHL
Q
CLOCK
50%
trec
VCC
50%
GND
Figure 1.
Figure 2.
VALID
VCC
DATA
50%
GND
tsu
th
VCC
CLOCK
50%
GND
Figure 3.
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
CL*
*Includes all probe and jig capacitance
Figure 4. Test Circuit
EXPANDED LOGIC DIAGRAM
D0 3
D1 4
D2 7
DATA
INPUTS
D3 8
D4 13
D5 14
D6 17
D7 18
11
1
C
Q
DR
C
Q
DR
C
Q
DR
C
Q
DR
C
Q
DR
C
Q
DR
C
Q
DR
C
Q
DR
2 Q0
5 Q1
6 Q2
9 Q3
12 Q4
NONINVERTING
OUTPUTS
15 Q5
16 Q6
19
Q7
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