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74HC190DB Fiches technique(PDF) 11 Page - NXP Semiconductors

No de pièce 74HC190DB
Description  Presettable synchronous BCD decade up/down counter
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Fabricant  PHILIPS [NXP Semiconductors]
Site Internet  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74HC190DB Fiches technique(HTML) 11 Page - NXP Semiconductors

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December 1990
11
Philips Semiconductors
Product specification
Presettable synchronous BCD decade
up/down counter
74HC/HCT190
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; tr =tf = 6 ns; CL = 50 pF
SYMBOL
PARAMETER
Tamb (°C)
UNIT
TEST CONDITIONS
74HCT
VCC
(V)
WAVEFORMS
+25
−40 to +85
−40 to +125
min.
typ.
max.
min.
max.
min.
max.
tPHL/ tPLH
propagation delay
CP to Qn
28
48
60
72
ns
4.5
Fig.10
tPHL/ tPLH
propagation delay
CP to TC
34
58
73
87
ns
4.5
Fig.10
tPHL/ tPLH
propagation delay
CP to RC
20
35
44
53
ns
4.5
Fig.11
tPHL/ tPLH
propagation delay
CE to RC
18
33
41
50
ns
4.5
Fig.11
tPHL/ tPLH
propagation delay
Dn to Qn
24
44
55
66
ns
4.5
Fig.12
tPHL/ tPLH
propagation delay
PL to Qn
29
49
61
74
ns
4.5
Fig.13
tPHL/ tPLH
propagation delay
U/D to TC
24
45
56
68
ns
4.5
Fig.14
tPHL/ tPLH
propagation delay
U/D to RC
26
45
56
68
ns
4.5
Fig.14
tTHL/ tTLH
output transition time
7
15
19
22
ns
4.5
Fig.15
tW
clock pulse width
HIGH or LOW
25
10
31
38
ns
4.5
Fig.10
tW
parallel load pulse width
LOW
22
12
28
33
ns
4.5
Fig.15
trem
removal time
PL to CP
7
1
9
11
ns
4.5
Fig.15
tsu
set-up time
U/D to CP
42
25
53
63
ns
4.5
Fig.17
tsu
set-up time
Dn to PL
20
10
25
30
ns
4.5
Fig.16
tsu
set-up time
CE to CP
31
18
39
47
ns
4.5
Fig.17
th
hold time
U/D to CP
0
−18
0
0
ns
4.5
Fig.17
th
hold time
Dn to PL
0
−6
0
0
ns
4.5
Fig.16
th
hold time
CE to CP
0
−10
0
0
ns
4.5
Fig.17
fmax
maximum clock pulse
frequency
16
27
13
11
MHz
4.5
Fig.10


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