HEF4538B
NXP Semiconductors
Dual precision monostable multivibrator
Table 6.
Static characteristics …continued
VSS = 0 V; VI = VSS or VDD unless otherwise specified.
Symbol Parameter
Conditions
VDD
Tamb = 40 C Tamb = 25 C Tamb = 85 C Tamb = 125 C Unit
Min
Max
1.7
0.64
1.6
4.2
-
Min
Max
1.4
0.5
1.3
3.4
-
Min Max
Min
Max
IOH
HIGH-level
output current
VO = 2.5 V
VO = 4.6 V
VO = 9.5 V
VO = 13.5 V
VO = 0.4 V
VO = 0.5 V
VO = 1.5 V
5 V
5 V
-
-
-
-
1.1
0.36
0.9
2.4
-
-
1.1 mA
0.36 mA
0.9 mA
2.4 mA
-
-
-
-
-
-
10 V
15 V
5 V
-
-
-
-
-
IOL
LOW-level
output current
0.64
1.6
4.2
-
0.5
1.3
3.4
-
0.36
0.9
2.4
-
0.36
0.9
2.4
-
-
-
-
mA
mA
mA
10 V
15 V
15 V
-
-
-
-
-
-
II
input leakage nREXT/CEXT
current
0.1
0.1
1.0
1.0 A
CI
input
-
-
-
-
7.5
-
-
-
-
pF
capacitance
Table 7.
Typical static characteristics
VSS = 0 V; VI = VSS or VDD; Tamb = +25 C.
Symbol
Parameter
Conditions
VDD
Typ
55
Unit
A
A
A
pF
[1]
IDD
supply current
active state
5 V
10 V
15 V
-
150
220
15
CI
input capacitance
nREXT/CEXT
[1] Only one monostable is switching: for the specified current during the output pulse (output nQ is HIGH).
10. Dynamic characteristics
Table 8.
Dynamic characteristics
VSS = 0 V; Tamb = 25 C; for test circuit see Figure 11.
Symbol Parameter
Conditions
VDD
5 V
Extrapolation formula[1] Min
Typ
Max
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
tPHL
HIGH to LOW
propagation
delay
nA, nB to nQ;
see Figure 6
193 ns + (0.55 ns/pF) CL
74 ns + (0.23 ns/pF) CL
52 ns + (0.16 ns/pF) CL
98 ns + (0.55 ns/pF) CL
44 ns + (0.23 ns/pF) CL
32 ns + (0.16 ns/pF) CL
173 ns + (0.55 ns/pF) CL
79 ns + (0.23 ns/pF) CL
52 ns + (0.16 ns/pF) CL
98 ns + (0.55 ns/pF) CL
44 ns + (0.23 ns/pF) CL
32 ns + (0.16 ns/pF) CL
-
-
-
-
-
-
-
-
-
-
-
-
220
85
440
190
120
250
110
80
10 V
15 V
5 V
60
nCD to nQ; see Figure 6
125
55
10 V
15 V
5 V
40
tPLH
LOW to HIGH
propagation
delay
nA, nB to nQ;
see Figure 6
200
90
460
180
120
250
110
80
10 V
15 V
5 V
60
nCD to nQ; see Figure 6
125
55
10 V
15 V
40
HEF4538B
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© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 8 — 16 November 2011
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NXP [ NXP ]
