HEF4528B Просмотр технического описания (PDF) - Philips Electronics
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HEF4528B Datasheet PDF : 8 Pages
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Philips Semiconductors
Dual monostable multivibrator
Product specification
HEF4528B
MSI
FUNCTION TABLE
INPUTS
I0
I1
CD
L
H
H
H
X
X
L
OUTPUTS
O
O
L
H
Notes
1. H = HIGH state (the more positive voltage)
2. L = LOW state (the less positive voltage)
3. X = state is immaterial
4.
= positive-going transition
5.
= negative-going transition
6.
= positive or negative output pulse; width is determined by Ct and Rt
AC CHARACTERISTICS
VSS = 0 V; Tamb = 25 °C; CL = 50 pF; input transition times ≤ 20 ns
VDD
V
SYMBOL MIN. TYP. MAX.
TYPICAL EXTRAPOLATION
FORMULA
Propagation delays
I0, I1 → O
HIGH to LOW
I0, I1 → O
LOW to HIGH
CD → O
HIGH to LOW
CD → O
LOW to HIGH
Output transition
times
HIGH to LOW
LOW to HIGH
5
10
tPHL
15
5
10
tPLH
15
5
10
tPHL
15
5
10
tPLH
15
5
10
tTHL
15
5
10
tTLH
15
140 280 ns
50 100 ns
35 70 ns
155 305 ns
60 115 ns
40 80 ns
105 210 ns
40 85 ns
30 60 ns
120 240 ns
50 105 ns
35 70 ns
60 120 ns
30 60 ns
20 40 ns
60 120 ns
30 60 ns
20 40 ns
113 ns + (0,55 ns/pF) CL
39 ns + (0,23 ns/pF) CL
27 ns + (0,16 ns/pF) CL
128 ns + (0,55 ns/pF) CL
49 ns + (0,23 ns/pF) CL
32 ns + (0,16 ns/pF) CL
78 ns + (0,55 ns/pF) CL
29 ns + (0,23 ns/pF) CL
22 ns + (0,16 ns/pF) CL
93 ns + (0,55 ns/pF) CL
39 ns + (0,23 ns/pF) CL
27 ns + (0,16 ns/pF) CL
10 ns + (1,0 ns/pF) CL
9 ns + (0,42 ns/pF) CL
6 ns + (0,28 ns/pF) CL
10 ns + (1,0 ns/pF) CL
9 ns + (0,42 ns/pF) CL
6 ns + (0,28 ns/pF) CL
January 1995
4
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