74HC237N(2004) 데이터 시트보기 (PDF) - NXP Semiconductors.
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74HC237N Datasheet PDF : 19 Pages
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Philips Semiconductors
74HC237
3-to-8 line decoder, demultiplexer with address latches
11. Dynamic characteristics
Table 8: Dynamic characteristics
GND = 0 V; tr = tf = 6 ns; CL = 50 pF; see Figure 9.
Symbol
Parameter
Conditions
Min
Typ
Max Unit
Tamb = 25 °C
tPHL, tPLH
propagation delay An to Yn see Figure 6
VCC = 2.0 V
-
VCC = 4.5 V
-
VCC = 6.0 V
-
VCC = 5.0 V; CL = 15 pF
-
propagation delay LE to Yn see Figure 6
52
160
ns
19
32
ns
15
27
ns
16
-
ns
VCC = 2.0 V
-
VCC = 4.5 V
-
VCC = 6.0 V
-
VCC = 5.0 V; CL = 15 pF
-
propagation delay E1to Yn
see Figure 7
61
190
ns
22
38
ns
18
32
ns
19
-
ns
VCC = 2.0 V
-
VCC = 4.5 V
-
VCC = 6.0 V
-
VCC = 5.0 V; CL = 15 pF
-
propagation delay E2 to Yn see Figure 6
47
145
ns
17
29
ns
14
25
ns
14
-
ns
tTHL, tTLH
tW
tsu
th
CPD
output transition time
VCC = 2.0 V
-
VCC = 4.5 V
-
VCC = 6.0 V
-
VCC = 5.0 V; CL = 15 pF
-
see Figure 7
47
145
ns
17
29
ns
14
25
ns
14
-
ns
LE pulse width HIGH
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
see Figure 8
-
19
75
ns
-
7
15
ns
-
6
13
ns
set-up time An to LE
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
see Figure 8
50
11
-
ns
10
4
-
ns
9
3
-
ns
hold time An to LE
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
see Figure 8
50
6
-
ns
10
2
-
ns
9
2
-
ns
power dissipation capacitance
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
VI = GND to VCC
30
3
-
ns
6
1
-
ns
5
1
-
ns
[1] -
60
-
pF
9397 750 13807
Product data sheet
Rev. 03 — 12 November 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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