參數(shù)資料
型號(hào): 74393
廠商: Harris Corporation
英文描述: CTV 6C 6#20 PIN PLUG
中文描述: 高速CMOS邏輯雙路4位的二進(jìn)制計(jì)數(shù)器
文件頁(yè)數(shù): 7/7頁(yè)
文件大?。?/td> 31K
代理商: 74393
7
HCT TYPES
Propagation Delay Time
(Figure 1)
t
PLH,
t
PHL
C
L
= 50pF
4.5
-
-
12
-
15
-
18
ns
Q
n
to Q
n
+ 1
C
L
=15pF
5
-
4
-
-
-
-
-
ns
nCP to nQ
0
t
PLH,
t
PHL
C
L
= 50pF
4.5
-
-
32
-
40
-
48
ns
C
L
=15pF
5
-
13
-
-
-
-
-
ns
nCP to nQ
1
t
PLH,
t
PHL
C
L
= 50pF
4.5
-
-
44
-
55
-
66
ns
nCP to nQ
2
t
PLH,
t
PHL
C
L
= 50pF
4.5
-
-
50
-
63
-
75
ns
nCP to nQ
3
t
PLH,
t
PHL
C
L
= 50pF
4.5
-
-
62
-
78
-
93
ns
MR to Q
n
t
PLH,
t
PHL
C
L
= 50pF
4.5
-
-
32
-
40
-
48
ns
C
L
=15pF
5
-
13
-
-
-
-
-
ns
Output Transition
t
TLH
, t
THL
C
L
= 50pF
4.5
-
-
15
-
19
-
22
ns
Input Capacitance
C
IN
C
L
=15pF
-
-
-
10
-
10
-
10
pF
Power Dissipation Capacitance
(Notes 4, 5)
C
PD
C
L
=15pF
5
-
21
-
-
-
-
-
pF
NOTES:
4. C
PD
is used to determine the dynamic power consumption, per stage.
5. P
D
= V
CC2
f
i
(C
PD
+ C
L
) where f
i
= Input Frequency, C
L
= Output Load Capacitance, V
CC
= Supply Voltage.
Switching Specifications
Input t
r
, t
f
= 6ns
(Continued)
PARAMETER
SYMBOL
TEST
CONDITIONS
V
CC
(V)
25
o
C
-40
o
C TO 85
o
C -55
o
C TO 125
o
C
UNITS
MIN
TYP
MAX
MIN
MAX
MIN
MAX
Test Circuits and Waveforms
FIGURE 1. HC AND HCU TRANSITION TIMES AND PROPAGA-
TION DELAY TIMES, COMBINATION LOGIC
FIGURE 2. HCT TRANSITION TIMES AND PROPAGATION
DELAY TIMES, COMBINATION LOGIC
t
PHL
t
PLH
t
THL
t
TLH
90%
50%
10%
50%
10%
INVERTING
OUTPUT
INPUT
GND
V
CC
t
r
= 6ns
t
f
= 6ns
90%
t
PHL
t
PLH
t
THL
t
TLH
2.7V
1.3V
0.3V
1.3V
10%
INVERTING
OUTPUT
INPUT
GND
3V
t
r
= 6ns
t
f
= 6ns
90%
CD74HC393, CD74HCT393
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