參數(shù)資料
型號: HD74LVCZ245A
廠商: Hitachi,Ltd.
英文描述: Octal Bidirectional Transceivers with 3-state Outputs(三態(tài)輸出的八雙向收發(fā)器)
中文描述: 八路雙向收發(fā)器具有三態(tài)輸出(三態(tài)輸出的八雙向收發(fā)器)
文件頁數(shù): 6/11頁
文件大?。?/td> 92K
代理商: HD74LVCZ245A
HD74LVCZ245A
6
Switching Characteristics
(Ta = –40 to 85
°
C)
Item
Symbol V
CC
(V)
Min
Typ
Max
Unit
FROM
(Input)
TO
(Output)
Propagation delay time
t
PLH
t
PHL
2.7
7.3
ns
A or B
B or A
3.3
±
0.3 1.5
5.0
±
0.5 —
6.3
4.8
Output enable time
t
ZH
t
ZL
2.7
9.5
ns
OE
A or B
3.3
±
0.3 1.5
5.0
±
0.5 —
8.5
7.0
Output disable time
t
HZ
t
LZ
2.7
8.5
ns
OE
A or B
3.3
±
0.3 1.7
5.0
±
0.5 —
7.5
6.5
Between output pin skew
*1
t
OSLH
t
OSHL
2.7
ns
3.3
±
0.3 —
5.0
±
0.5 —
1.0
1.0
Note : 1. This parameter is characterized but not tested.
t
OSLH
= |t
PLHm
–t
PLHn
|, t
OSHL
= |t
PHLm
–t
PHLn
|
Test Circuit
V
CC
A0
OPEN
See
under table
GND
C =
50 pF
OE
T /
R
Output
*1
Input
S
Pulse generator
Z
out
= 50
B0
S1
500
450
50 Scope
6 V
V
CC
S2
Vcc=2.7V,
3.3
±
0.3V
OPEN
GND
Vcc=5.0
±
0.5V
OPEN
GND
t / t
t / t
t / t
PHL
HZ
LZ
2
×
V
CC
Symbol
S2
Note: 1. C includes probe and jig capacitance.
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