MC14174B
SWITCHING CHARACTERISTICS (7.) (C = 50 pF, T = 25_C)
L
A
All Types
V
Vdc
DD
(8.)
Min
Typ
Max
Characteristic
Output Rise and Fall Time
Symbol
Unit
t
, t
ns
TLH THL
t
t
t
, t
= (1.35 ns/pF) C + 32 ns
= (0.6 ns/pF) C + 20 ns
L
5.0
10
15
—
—
—
100
50
40
200
100
80
TLH THL
L
, t
TLH THL
, t
= (0.4 ns/pF) C + 20 ns
TLH THL
L
Propagation Delay Time — Clock to Q
t
, t
ns
ns
PLH PHL
t
t
t
, t
= (0.9 ns/pF) C + 165 ns
= (0.36 ns/pF) C + 64 ns
L
5.0
10
15
—
—
—
210
85
65
400
160
120
PLH PHL
L
, t
PLH PHL
, t
= (0.26 ns/pF) C + 52 ns
PLH PHL
L
Propagation Delay Time — Reset to Q
t
PHL
t
t
t
= (0.9 ns/pF) C + 205 ns
5.0
10
15
—
—
—
250
100
75
500
200
150
PHL
PHL
PHL
L
= (0.36 ns/pF) C + 79 ns
L
= (0.26 ns/pF) C + 62 ns
L
Clock Pulse Width
t
5.0
10
15
150
90
70
75
45
35
—
—
—
ns
ns
WH
Reset Pulse Width
t
5.0
10
15
200
100
80
100
50
40
—
—
—
WL
Clock Pulse Frequency
Clock Pulse Rise and Fall Time
Data Setup Time
f
5.0
10
15
—
—
—
7.0
12
15.5
2.0
5.0
6.5
mHz
ms
cl
t
, t
5.0
10
15
—
—
—
—
—
—
15
5.0
4.0
TLH THL
t
su
5.0
10
15
40
20
15
20
10
0
—
—
—
ns
Data Hold Time
t
h
5.0
10
15
80
40
30
40
20
15
—
—
—
ns
Reset Removal Time
t
5.0
10
15
250
100
80
125
50
40
—
—
—
ns
rem
7. The formulas given are for the typical characteristics only at 25_C.
8. Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.
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