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Número de pieza
componentes Descripción
HD74LV245A(2010) Ver la hoja de datos (PDF) - Renesas Electronics
Número de pieza
componentes Descripción
Fabricante
HD74LV245A
(Rev.:2010)
Octal Bus Transceivers with 3-state Outputs
Renesas Electronics
HD74LV245A Datasheet PDF : 12 Pages
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HD74LV245A
Switching Characteristics
Item
Propagation
delay time
Enable time
Disable time
Symbol
t
PLH
t
PHL
t
ZH
t
ZL
t
HZ
t
LZ
Ta = 25°C
Min Typ
— 8.3
— 11.2
— 11.8
— 14.1
— 11.8
— 17.6
Max
13.0
15.9
19.9
22.7
18.1
23.1
Ta = –40 to 85°C
Min
Max
1.0
15.0
1.0
18.0
1.0
22.0
1.0
26.0
1.0
20.0
1.0
25.0
Unit
ns
ns
ns
Test
Conditions
C
L
= 15 pF
C
L
= 50 pF
C
L
= 15 pF
C
L
= 50 pF
C
L
= 15 pF
C
L
= 50 pF
Item
Propagation
delay time
Enable time
Disable time
Symbol
t
PLH
t
PHL
t
ZH
t
ZL
t
HZ
t
LZ
Ta = 25°C
Min Typ
— 5.9
— 7.9
— 8.2
— 9.9
— 9.6
— 13.9
Max
8.4
11.9
13.2
16.7
16.5
19.8
Ta = –40 to 85°C
Min
Max
1.0
10.0
1.0
13.5
1.0
15.5
1.0
19.0
1.0
19.5
1.0
22.0
Unit
ns
ns
ns
Test
Conditions
C
L
= 15 pF
C
L
= 50 pF
C
L
= 15 pF
C
L
= 50 pF
C
L
= 15 pF
C
L
= 50 pF
Item
Propagation
delay time
Enable time
Disable time
Symbol
t
PLH
t
PHL
t
ZH
t
ZL
t
HZ
t
LZ
Ta = 25°C
Min Typ
— 4.3
— 5.6
— 5.7
— 7.0
— 7.8
— 10.9
Max
5.5
7.5
8.5
10.6
12.8
14.7
Ta = –40 to 85°C
Min
Max
1.0
6.5
1.0
8.5
1.0
10.0
1.0
12.0
1.0
14.2
1.0
16.0
Unit
ns
ns
ns
Test
Conditions
C
L
= 15 pF
C
L
= 50 pF
C
L
= 15 pF
C
L
= 50 pF
C
L
= 15 pF
C
L
= 50 pF
V
CC
= 2.5 ± 0.2 V
FROM TO
(Input) (Output)
A or B B or A
OE
A or B
OE
A or B
V
CC
= 3.3 ± 0.3 V
FROM TO
(Input) (Output)
A or B B or A
OE
A or B
OE
A or B
V
CC
= 5.0 ± 0.5 V
FROM TO
(Input) (Output)
A or B B or A
OE
A or B
OE
A or B
Output-skew Characteristics
Ta = 25°C
Ta = –40 to 85°C
C
L
= 50 pF
Item
Symbol V
CC
(V)
Min
Max
Min
Max
Unit
Output skew
t
sk (O)
2.3 to 2.7
—
3.0 to 3.6
—
2.0
—
1.5
—
2.0
ns
1.5
4.5 to 5.5
—
1.0
—
1.0
Note: Skew between any outputs of the same package switching in the same direction. This parameter is warranted
but not production tested.
Rev.3.00 Jun. 24, 2004 page 5 of 9
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