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HD74HC138TE 데이터 시트보기 (PDF) - Renesas Electronics
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HD74HC138TE
3-to-8-line Decoder/Demultiplexer with Address Latch
Renesas Electronics
HD74HC138TE Datasheet PDF : 10 Pages
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HD74HC138
Switching Characteristics
(C
L
= 50 pF, Input t
r
= t
f
= 6 ns)
Item
Propagation delay
time
Output rise/fall
time
Input capacitance
Symbol V
CC
(V)
2.0
t
PHL
4.5
6.0
2.0
t
PLH
4.5
6.0
2.0
t
PHL
4.5
6.0
2.0
t
PLH
4.5
6.0
2.0
t
PHL
4.5
6.0
2.0
t
PLH
4.5
6.0
2.0
t
TLH
, t
THL
4.5
6.0
Cin
—
Ta = 25
°
C
Ta = –40 to +85
°
C
Unit
Min Typ Max Min Max
Test Conditions
— — 175 —
220
— 17 35
—
44 ns
— — 30
—
37
— — 150 —
190
A, B or C to Y
— 16 30
—
38 ns
— — 26
—
33
— — 150 —
190
— 16 30
—
38 ns
— — 26
—
33
— — 150 —
190
G
1
to Y
— 17 30
—
38 ns
— — 26
—
33
— — 175 —
220
— 15 35
—
44 ns
— — 30
—
37
— — 150 —
190
G
2A
or G
2B
to Y
— 17 30
—
38 ns
— — 26
—
33
— — 75
—
90
— 5 15
—
19 ns
— — 13
—
16
— 5 10
—
10 pF
Test Circuit
Measurement point
C
L*
Note: C
L
includes the probe and fig capacitance.
REJ03D0570-0300 Rev.3.00 Mar 25, 2009
Page 4 of 7
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