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74HC194 数据表(PDF) 7 Page - NXP Semiconductors

部件名 74HC194
功能描述  4-bit bidirectional universal shift gister
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制造商  NXP [NXP Semiconductors]
网页  http://www.nxp.com
标志 NXP - NXP Semiconductors

74HC194 数据表(HTML) 7 Page - NXP Semiconductors

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December 1990
7
Philips Semiconductors
Product specification
4-bit bidirectional universal shift register
74HC/HCT194
AC CHARACTERISTICS FOR 74HC
GND = 0 V; tr =tf = 6 ns; CL = 50 pF
SYMBOL
PARAMETER
Tamb (°C)
UNIT
TEST CONDITIONS
74HC
VCC
(V)
WAVEFORMS
+25
−40 to +85
−40 to +125
min.
typ.
max.
min.
max.
min.
max.
tPHL/ tPLH
propagation delay
CP to Qn
47
17
14
145
29
25
180
36
31
220
44
38
ns
2.0
4.5
6.0
Fig.7
tPHL
propagation delay
MR to Qn
39
14
11
140
28
24
175
35
30
210
42
36
ns
2.0
4.5
6.0
Fig.8
tTHL/ tTLH
output transition time
19
7
6
75
15
13
95
19
16
110
22
19
ns
2.0
4.5
6.0
Fig.7
tW
clock pulse width
HIGH or LOW
80
16
14
17
6
5
100
20
17
120
24
20
ns
2.0
4.5
6.0
Fig.7
tW
master reset pulse
width; LOW
80
16
14
17
6
5
100
20
17
120
24
20
ns
2.0
4.5
6.0
Fig.8
trem
removal time
MR to CP
60
12
10
17
6
5
75
15
13
90
18
15
ns
2.0
4.5
6.0
Fig.8
tsu
set-up time
Dn to CP
70
14
12
17
6
5
90
18
15
105
21
18
ns
2.0
4.5
6.0
Fig.9
tsu
set-up time
S0, S1 to CP
80
16
12
22
8
6
100
20
17
120
24
20
ns
2.0
4.5
6.0
Fig.10
tsu
set-up time
DSR, DSL to CP
70
14
12
19
7
6
90
18
15
105
21
18
ns
2.0
4.5
6.0
th
hold time
Dn to CP
0
0
0
−14
−5
−4
0
0
0
0
0
0
ns
2.0
4.5
6.0
Fig.9
th
hold time
S0, S1 to CP
0
0
0
−11
−4
−3
0
0
0
0
0
0
ns
2.0
4.5
6.0
Fig.10
th
hold time
DSR, DSL to CP
0
0
0
−17
−6
−5
0
0
0
0
0
0
ns
2.0
4.5
6.0
fmax
maximum clock pulse
frequency
6.0
30
35
31
93
111
4.8
24
28
4.0
20
24
MHz
2.0
4.5
6.0
Fig.7


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