74LV161DB 查看數據表（PDF） - Philips Electronics
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74LV161DB Datasheet PDF : 16 Pages
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Philips Semiconductors
Presettable synchronous 4-bit binary counter;
asynchronous reset
Product specification
74LV161
AC CHARACTERISTICS
GND = 0V; tr = tf ≤ 2.5ns; CL = 50pF; RL = 1KΩ
SYMBOL
PARAMETER
WAVEFORM
tPHL/tPLH
Propagation delay
CP to Qn
Figures 1, 6
tPHL/tPLH
Propagation delay
CP to TC
Figures 1, 6
tPHL/tPLH
Propagation delay
MR to Qn
Figures 2, 6
tPHL/tPLH
Propagation delay
MR to TC
Figures 2, 6
tPHL/tPLH
Propagation delay
CET to TC
Figures 1, 6
tw
Clock pulse width
HIGH or LOW
Figures 2, 6
tw
Master reset width;
LOW
Figures 2, 6
trem
Removal time
MR to CP
Figures 2, 6
tsu
Set-up time
Dn to CP
tsu
Set-up time
PE to CP
Figures 4, 6
Figures 4, 6
tsu
Set-up time
CEP, CET to CP
Figures 5, 6
CONDITION
VCC(V)
1.2
2.0
2.7
3.0 to 3.6
1.2
2.0
2.7
3.0 to 3.6
1.2
2.0
2.7
3.0 to 3.6
1.2
2.0
2.7
3.0 to 3.6
1.2
2.0
2.7
3.0 to 3.6
2.0
2.7
3.0 to 3.6
2.0
2.7
3.0 to 3.6
1.2
2.0
2.7
3.0 to 3.6
1.2
2.0
2.7
3.0 to 3.6
1.2
2.0
2.7
3.0 to 3.6
1.2
2.0
2.7
3.0 to 3.6
LIMITS
–40 to +85 °C
MIN TYP1 MAX
95
32
61
24
45
182
36
115
39
75
29
55
222
44
95
32
61
24
45
182
36
105
36
68
26
50
202
40
55
19
36
14
26
102
21
34
10
25
8
20
62
34
14
25
10
20
82
25
22
9
16
6
13
52
25
22
9
16
6
13
52
30
22
10
16
8
13
62
30
22
10
16
8
13
62
–40 to +125 °C
MIN MAX
75
55
44
90
66
53
75
55
44
82
60
48
44
33
26
41
30
24
41
30
24
26
19
15
26
19
15
26
19
15
26
19
15
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
1997 May 15
8
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