MC14528B
http://onsemi.com
4
SWITCHING CHARACTERISTICS
(8.)
(C
L
= 50 pF, T
A
= 25C)
Characteristic
Symbol
C
X
pF
R
X
kΩ
V
DD
Vdc
Min Typ
(9.)
Max Unit
Output Rise and Fall Time
t
TLH
, t
THL
= (1.5 ns/pF) C
L
+ 25 ns
t
TLH
, t
THL
= (0.75 ns/pF) C
L
+ 12.5 ns
t
TLH
, t
THL
= (0.55 ns/pF) C
L
+ 9.5 ns
t
TLH
,
t
THL
— —
5.0
10
15
—
—
—
100
50
40
200
100
80
ns
Turn–Off, Turn–On Delay Time — A or B to Q or Q
t
PLH
, t
PHL
= (1.7 ns/pF) C
L
+ 240 ns
t
PLH
, t
PHL
= (0.66 ns/pF) C
L
+ 87 ns
t
PLH
, t
PHL
= (0.5 ns/pF) C
L
+ 65 ns
t
PLH
,
t
PHL
15 5.0
5.0
10
15
—
—
—
325
120
90
650
240
180
ns
Turn–Off, Turn–On Delay Time — A or B to Q or Q
t
PLH
, t
PHL
= (1.7 ns/pF) C
L
+ 620 ns
t
PLH
, t
PHL
= (0.66 ns/pF) C
L
+ 257 ns
t
PLH
, t
PHL
= (0.5 ns/pF) C
L
+ 185 ns
t
PLH
,
t
PHL
1000 10
5.0
10
15
—
—
—
705
290
210
—
—
—
ns
Input Pulse Width — A or B
t
WH
15 5.0 5.0
10
15
150
75
55
70
30
30
—
—
—
ns
t
WL
1000 10 5.0
10
15
—
—
—
70
30
30
—
—
—
ns
Output Pulse Width — Q or Q
(For C
X
< 0.01 µF use graph for
appropriate V
DD
level.)
t
W
15 5.0 5.0
10
15
—
—
—
550
350
300
—
—
—
ns
Output Pulse Width — Q or Q
(For C
X
> 0.01 µF use formula:
t
W
= 0.2 R
X
C
X
Ln [V
DD
– V
SS
])
(6.)
t
W
10,000 10 5.0
10
15
15
10
15
30
50
55
45
90
95
µs
Pulse Width Match between Circuits in the same
package
t1 – t2 10,000 10 5.0
10
15
—
—
—
6.0
8.0
8.0
25
35
35
%
Reset Propagation Delay — Reset to Q or Q t
PLH
,
t
PHL
15 5.0 5.0
10
15
—
—
—
325
90
60
600
225
170
ns
1000 10 5.0
10
15
—
—
—
1000
300
250
—
—
—
ns
Retrigger Time t
rr
15 5.0 5.0
10
15
0
0
0
—
—
—
—
—
—
ns
1000 10 5.0
10
15
0
0
0
—
—
—
—
—
—
ns
External Timing Resistance R
X
— — — 5.0 — 1000 kΩ
External Timing Capacitance C
X
— — — No Limits
(7.)
µF
6. R
X
is in Ohms, C
X
is in farads, V
DD
and V
SS
in volts, PW
out
in seconds.
7. If C
X
> 15 µF, Use Discharge Protection Diode D
X
, per Fig. 9.
8. The formulas given are for the typical characteristics only at 25C.
9. Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.
