74HC4538-Q100 View Datasheet(PDF) - NXP Semiconductors.
Part Name
Description
MFG CO.
74HC4538-Q100 Datasheet PDF : 23 Pages
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NXP Semiconductors
74HC4538-Q100; 74HCT4538-Q100
Dual retriggerable precision monostable multivibrator
Table 7. Dynamic characteristics …continued
Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 9.
Symbol Parameter Conditions
25 C
40 C to
+85 C
Min Typ[1] Max Min Max
74HCT4538-Q100
tPLH
LOW to HIGH nA, nB to nQ;
propagation see Figure 7
delay
VCC = 4.5 V
VCC = 5.0 V; CL = 15 pF
nCD to nQ; see Figure 7
-
35
60
-
75
-
30
-
-
-
VCC = 4.5 V
tPHL
HIGH to LOW nA, nB to nQ;
propagation see Figure 7
delay
VCC = 4.5 V
VCC = 5.0 V; CL = 15 pF
nCD to nQ; see Figure 7
-
35
60
-
75
-
35
60
-
75
-
30
-
-
-
VCC = 4.5 V
-
35
60
-
75
tt
transition time nQ and nQ; see Figure 7 [2]
VCC = 4.5 V
-
7
15
-
19
tW
pulse width nA LOW; see Figure 8
VCC = 4.5 V
20
11
-
25
-
nB HIGH; see Figure 8
VCC = 4.5 V
nCD LOW; see Figure 8
16
5
-
20
-
VCC = 4.5 V
nQ and nQ HIGH or LOW;
see Figure 8
20
11
-
25
-
VCC = 5.0 V;
CEXT = 0.1 F;
REXT = 10 k
trec
recovery time nCD to nA, nB;
see Figure 8
630 700 770 602 798
trtrig
REXT
retrigger time
external
resistance
VCC = 4.5 V
nA, nB; see Figure 8;
X = CEXT / (4.5 VCC)
VCC = 4.5 V
VCC = 5.0 V
7
2
-
9
-
- 80 + X -
-
-
2
-
1000 -
-
CEXT
external
capacitance
VCC = 5.0 V
no limits
40 C to Unit
+125 C
Min Max
-
90 ns
-
- ns
-
90 ns
-
90 ns
-
- ns
-
90 ns
-
21 ns
30
- ns
24
- ns
30
- ns
595 805 s
11
- ns
-
- ns
-
- k
74HC_HCT4538_Q100
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 2 August 2012
© NXP B.V. 2012. All rights reserved.
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