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HD74LS138 Fiches technique(PDF) 4 Page - Renesas Technology Corp

No de pièce HD74LS138
Description  3-Line-to-8-Line Decoders / Demultiplexers
PDF  8 Pages
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Fabricant  RENESAS [Renesas Technology Corp]
Site Internet  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD74LS138 Fiches technique(HTML) 4 Page - Renesas Technology Corp

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HD74LS138
Rev.3.00, Jul.13.2005, page 4 of 7
Testing Method
Test Circuit
4.5V
Y0
Load circuit 1
Output
VCC
RL
CL
Input
P.G.
Zout = 50
Ω
A
B
C
G1
G2A
G2B
Y2
Y3
Y4
Y5
Y6
Y7
Y1
Same as Load Circuit 1.
Output
Same as Load Circuit 1.
Output
Same as Load Circuit 1.
Output
Same as Load Circuit 1.
Output
Same as Load Circuit 1.
Output
Same as Load Circuit 1.
Output
Same as Load Circuit 1.
Output
Notes:
1.
CL includes probe and jig capacitance.
2.
All diodes are 1S2074(H).
Waveform
tPLH
tPHL
VOH
VOL
0 V
3 V
VOH
VOL
tPHL
tPLH
10%
90%
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
10%
90%
Input
In phase Output
Out of phase Output
tTLH
tTHL
Note:
Input pulse; tTLH
≤ 15 ns, t
THL
≤ 6 ns, PRR = 1 MHz, duty cycle 50%



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