74HC191D View Datasheet(PDF) - NXP Semiconductors.
Part Name
Description
MFG CO.
74HC191D Datasheet PDF : 19 Pages
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Nexperia
74HC191
Presettable synchronous 4-bit binary up/down counter
10. Dynamic characteristics
Table 8. Dynamic characteristics
Voltages are referenced to GND (ground = 0 V); CL = 50 pF unless otherwise specified; for test circuit see Fig. 18.
Symbol Parameter Conditions
25 °C
-40 °C to +85 °C -40 °C to +125 °C Unit
Min Typ Max Min
Max
Min
Max
tpd
propagation CP to Qn; see Fig. 10
delay
VCC = 2.0 V
[1]
- 72 220
-
275
-
330 ns
VCC = 4.5 V
- 26 44
-
55
-
66 ns
VCC = 5.0 V; CL = 15 pF
VCC = 6.0 V
CP to TC; see Fig. 10
- 22 -
-
- 21 37
-
-
-
47
-
- ns
56 ns
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
CP to RC; see Fig. 11
- 83 255
-
- 30 51
-
- 24 43
-
320
-
64
-
54
-
395 ns
77 ns
65 ns
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
CE to RC; see Fig. 11
- 47 150
-
- 17 30
-
- 14 26
-
190
-
38
-
33
-
225 ns
45 ns
38 ns
VCC = 2.0 V
VCC = 4.5 V
- 33 130
-
- 12 26
-
165
-
33
-
195 ns
39 ns
VCC = 6.0 V
- 10 22
-
28
-
33 ns
Dn to Qn; see Fig. 12
VCC = 2.0 V
- 61 220
-
275
-
330 ns
VCC = 4.5 V
- 22 44
-
55
-
66 ns
VCC = 6.0 V
- 18 37
-
47
-
56 ns
PL to Qn; see Fig. 13
VCC = 2.0 V
- 61 220
-
275
-
330 ns
VCC = 4.5 V
- 22 44
-
55
-
66 ns
VCC = 6.0 V
- 18 37
-
47
-
56 ns
U/D to TC; see Fig. 14
VCC = 2.0 V
- 44 190
-
240
-
285 ns
VCC = 4.5 V
- 16 38
-
48
-
57 ns
VCC = 6.0 V
- 13 32
-
41
-
48 ns
U/D to RC; see Fig. 14
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
tt
transition see Fig. 15
time
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
- 50 210
-
- 18 42
-
- 14 36
-
[2]
- 19 75
-
- 7 15
-
- 6 13
-
265
-
53
-
45
-
95
-
19
-
16
-
315 ns
63 ns
54 ns
110 ns
22 ns
19 ns
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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