74HC191PW Ver la hoja de datos (PDF) - NXP Semiconductors.
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74HC191PW Datasheet PDF : 19 Pages
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Nexperia
74HC191
Presettable synchronous 4-bit binary up/down counter
Symbol Parameter Conditions
tW
pulse width CP; HIGH or LOW; see Fig. 10
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
PL; LOW; see Fig. 15
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
trec
recovery PL to CP; see Fig. 15
time
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
tsu
set-up time U/D to CP; see Fig. 16
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
Dn to PL; see Fig. 17
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
CE to CP; see Fig. 16
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
th
hold time U/D to CP; see Fig. 16
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
Dn to PL; see Fig. 17
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
CE to CP; see Fig. 16
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
fmax
maximum CP; see Fig. 10
frequency
VCC = 2.0 V
VCC = 4.5 V
VCC = 5.0 V; CL = 15 pF
VCC = 6.0 V
25 °C
-40 °C to +85 °C -40 °C to +125 °C Unit
Min Typ Max Min
Max
Min
Max
125 28 -
155
25 10 -
31
21 8 -
26
-
195
-
39
-
33
- ns
- ns
- ns
100 22 -
125
20 8 -
25
17 6 -
21
-
150
-
30
-
26
- ns
- ns
- ns
35 8 -
45
73 -
9
62 -
8
-
55
-
11
-
9
- ns
- ns
- ns
205 50 -
255
41 18 -
51
35 14 -
43
-
310
-
62
-
53
- ns
- ns
- ns
100 19 -
125
20 7 -
25
17 6 -
21
-
150
-
30
-
26
- ns
- ns
- ns
140 44 -
175
28 16 -
35
24 13 -
30
-
210
-
42
-
36
- ns
- ns
- ns
0 -39 -
0
-
0
- ns
0 -14 -
0
-
0
- ns
0 -11 -
0
-
0
- ns
0 -11 -
0
-
0
- ns
0 -4 -
0
-
0
- ns
0 -3 -
0
-
0
- ns
0 -28 -
0
-
0
- ns
0 -10 -
0
-
0
- ns
0 -8 -
0
-
0
- ns
4.0 11 -
3.2
20 33 -
16
- 36 -
-
24 39 -
19
-
2.6
-
13
-
-
-
15
- MHz
- MHz
- MHz
- MHz
74HC191
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 5 October 2018
© Nexperia B.V. 2018. All rights reserved
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