74LV4040 Просмотр технического описания (PDF) - Philips Electronics
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74LV4040 Datasheet PDF : 14 Pages
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Philips Semiconductors
12-stage binary ripple counter
Product specification
74LV4040
AC CHARACTERISTICS
GND = 0V; tr = tf ≤ 2.5ns; CL = 50pF; RL = 500W
SYMBOL
PARAMETER
WAVEFORM
CONDITION
VCC(V)
1.2
tPHL/tPLH
Propagation delay
CP to Q0
Figure 7, 9
2.0
2.7
3.0 to 3.6
4.5 to 5.5
1.2
tPHL/tPLH
Propagation delay
Qn to Qn+1
Figure 7, 9
2.0
2.7
3.0 to 3.6
4.5 to 5.5
1.2
tPHL
Propagation delay
MR to Qn
Figure 8, 9
2.0
2.7
3.0 to 3.6
4.5 to 5.5
2.0
tW
Clock pulse width
HIGH to LOW
Figure 7
2.7
3.0 to 3.6
4.5 to 5.5
2.0
tW
Master reset pulse
width HIGH
Figure 8
2.7
3.0 to 3.6
4.5 to 5.5
1.2
trem
Removal time
MR to CP
Figure 8
2.0
2.7
3.0 to 3.6
4.5 to 5.5
2.0
fmax
Maximum clock
pulse frequency
Figure 7
2.7
3.0 to 3.6
4.5 to 5.5
NOTES:
1. Unless otherwise stated, all typical values are at Tamb = 25°C.
2. Typical value measured at VCC = 3.3V.
3. Typical value measured at VCC = 5.0V.
LIMITS
–40 to +85 °C
MIN TYP1 MAX
–
60
–
–
27
43
–
19
31
–
162
26
–
13
17
–
40
–
–
18
29
–
13
21
–
112
18
–
73
12
–
55
–
–
27
44
–
19
31
–
162
26
–
113
17
35
7
–
25
5
–
20
42
–
15
33
–
35
11
–
25
9
–
20
82
–
15
73
–
–
10
–
22
5
–
16
4
–
13
32
–
10
23
–
14
60
–
19
76
–
24
942
–
36
1123
–
LIMITS
–40 to +125 °C
MIN MAX
–
–
–
54
–
38
–
32
–
22
–
–
–
54
–
38
–
32
–
22
–
–
–
54
–
38
–
32
–
22
41
54
30
–
24
–
18
–
41
–
30
–
24
–
18
–
–
–
26
–
19
–
15
–
12
–
12
–
16
–
20
–
30
–
UNIT
ns
ns
ns
ns
ns
ns
MHz
1998 Jun 23
7
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