74HC390 데이터 시트보기 (PDF) - Philips Electronics
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74HC390 Datasheet PDF : 7 Pages
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Philips Semiconductors
Dual decade ripple counter
Product specification
74HC/HCT390
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard
ICC category: MSI
AC CHARACTERISTICS FOR 74HC
GND = 0 V; tr = tf = 6 ns; CL = 50 pF
SYMBOL
PARAMETER
tPHL/ tPLH propagation delay
nCP0 to nQ0
tPHL/ tPLH propagation delay
nCP1 to nQ1
tPHL/ tPLH propagation delay
nCP1 to nQ2
tPHL/ tPLH propagation delay
nCP1 to nQ3
tPHL
propagation delay
nMR to nQn
tTHL/ tTLH output transition time
tW
clock pulse width
nCP0, nCP1
tW
master reset pulse width
HIGH
trem
removal time
nMR to nCPn
fmax
maximum clock pulse
frequency
nCP0, nCP1
Tamb (°C)
TEST CONDITIONS
74HC
+25
−40 to +85
−40 to +125
UNIT
VCC
(V)
WAVEFORMS
min. typ. max. min. max. min. max.
47 145
180
220 ns 2.0 Fig.6
17 29
36
44
4.5
14 25
31
38
6.0
50 155
195
235 ns 2.0 Fig.6
18 31
39
47
4.5
14 26
33
40
6.0
74 210
265
315 ns 2.0 Fig.6
27 42
53
63
4.5
22 36
45
54
6.0
50 155
195
235 ns 2.0 Fig.6
18 31
39
47
4.5
14 26
33
40
6.0
52 165
205
250 ns 2.0 Fig.7
19 33
41
50
4.5
15 28
35
43
6.0
19 75
95
110 ns 2.0 Fig.6
7 15
19
22
4.5
6 13
16
19
6.0
80 19
16 7
14 6
100
120
20
24
17
20
ns 2.0 Fig.6
4.5
6.0
80 28
17 10
14 8
105
130
21
26
18
22
ns 2.0 Fig.7
4.5
6.0
75 22
95
110
ns 2.0 Fig.7
15 8
19
22
4.5
13 6
16
19
6.0
6.0 20
30 60
35 71
4.8
4.0
24
20
28
24
MHz 2.0 Fig.6
4.5
6.0
December 1990
5
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