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74HC237N Datasheet(PDF) 9 Page - NXP Semiconductors

Part # 74HC237N
Description  3-to-8 line decoder, demultiplexer with address latches
PDF  19 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74HC237N Datasheet(HTML) 9 Page - NXP Semiconductors

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9397 750 13807
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 — 12 November 2004
9 of 19
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
-
52
160
ns
VCC = 4.5 V
-
19
32
ns
VCC = 6.0 V
-
15
27
ns
VCC = 5.0 V; CL = 15 pF
-
16
-
ns
propagation delay LE to Yn
see Figure 6
VCC = 2.0 V
-
61
190
ns
VCC = 4.5 V
-
22
38
ns
VCC = 6.0 V
-
18
32
ns
VCC = 5.0 V; CL = 15 pF
-
19
-
ns
propagation delay E1to Yn
see Figure 7
VCC = 2.0 V
-
47
145
ns
VCC = 4.5 V
-
17
29
ns
VCC = 6.0 V
-
14
25
ns
VCC = 5.0 V; CL = 15 pF
-
14
-
ns
propagation delay E2 to Yn
see Figure 6
VCC = 2.0 V
-
47
145
ns
VCC = 4.5 V
-
17
29
ns
VCC = 6.0 V
-
14
25
ns
VCC = 5.0 V; CL = 15 pF
-
14
-
ns
tTHL, tTLH
output transition time
see Figure 7
VCC = 2.0 V
-
19
75
ns
VCC = 4.5 V
-
7
15
ns
VCC = 6.0 V
-
6
13
ns
tW
LE pulse width HIGH
see Figure 8
VCC = 2.0 V
50
11
-
ns
VCC = 4.5 V
10
4
-
ns
VCC = 6.0 V
9
3
-
ns
tsu
set-up time An to LE
see Figure 8
VCC = 2.0 V
50
6
-
ns
VCC = 4.5 V
10
2
-
ns
VCC = 6.0 V
9
2
-
ns
th
hold time An to LE
see Figure 8
VCC = 2.0 V
30
3
-
ns
VCC = 4.5 V
6
1
-
ns
VCC = 6.0 V
5
1
-
ns
CPD
power dissipation capacitance
VI = GND to VCC
[1] -60
-
pF



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