74HC237DB(2004) 데이터 시트보기 (PDF) - NXP Semiconductors.
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74HC237DB Datasheet PDF : 19 Pages
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Philips Semiconductors
74HC237
3-to-8 line decoder, demultiplexer with address latches
PULSE
VI
GENERATOR
VCC
VO
D.U.T.
RT
CL
mna101
Fig 9.
Test data is given in Table 9.
Definitions for test circuit:
RT = Termination resistance should be equal to output impedance Zo of the pulse generator.
CL = Load capacitance including jig and probe capacitance.
Load circuitry for switching times
Table 9:
Supply
VCC
2.0 V
4.5 V
6.0 V
5.0 V
Test data
Input
VI
VCC
VCC
VCC
VCC
tr, tf
6 ns
6 ns
6 ns
6 ns
Load
CL
50 pF
50 pF
50 pF
15 pF
13. Application information
strobe
decoder enable
X0
X1
X2
input
address
LE
A2 A1 A0
E1 E2
237
Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7
01234567
to five
X3
X4
other
decoders
X5
LE
A2 A1 A0
E1 E2
237
Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7
01234567
outputs
LE
A2 A1 A0
E1 E2
237
Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7
8 9 10 11 12 13 14 15
outputs
Fig 10. 6-to-64 line decoder with input address storage
LE
A2 A1 A0
E1 E2
237
Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7
16 17 18 19 20 21 22 23
outputs
001aab876
9397 750 13807
Product data sheet
Rev. 03 — 12 November 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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