74HC190D Просмотр технического описания (PDF) - Philips Electronics
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74HC190D Datasheet PDF : 13 Pages
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Philips Semiconductors
Presettable synchronous BCD decade
up/down counter
Product specification
74HC/HCT190
SYMBOL PARAMETER
trem
removal time
PL to CP
tsu
set-up time
U/D to CP
tsu
set-up time
Dn to PL
tsu
set-up time
CE to CP
th
hold time
U/D to CP
th
hold time
Dn to PL
th
hold time
CE to CP
fmax
maximum clock pulse
frequency
Tamb (°C)
TEST CONDITIONS
74HC
+25
−40 TO +85
UNIT
−40 TO +125
VCC
(V)
WAVEFORMS
min. typ. max. min. max. min. max.
35 8
73
62
45
55
ns 2.0 Fig.15
9
11
4.5
8
9
6.0
205 61
41 22
35 18
255
310
ns 2.0 Fig.17
51
62
4.5
43
53
6.0
100 19
20 7
17 6
125
150
ns 2.0 Fig.16
25
30
4.5
21
26
6.0
140 39
28 14
24 11
175
210
ns 2.0 Fig.17
35
42
4.5
30
36
6.0
0 −44
0
0
ns 2.0 Fig.17
0 −16
0
0
4.5
0 −13
0
0
6.0
0 −14
0
0
ns 2.0 Fig.16
0 −5
0
0
4.5
0 −4
0
0
6.0
0 −19
0
0
ns 2.0 Fig.17
0 −7
0
0
4.5
0 −6
0
0
6.0
3.0 8.3
2.4
2.0
MHz 2.0 Fig.10
15 25
12
10
4.5
18 30
14
12
6.0
December 1990
9
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