參數(shù)資料
型號(hào): HD74BC640A
廠商: Hitachi,Ltd.
英文描述: Octal Bus Transceivers With 3 State Outputs(三態(tài)輸出的八總線收發(fā)器)
中文描述: 八路總線收發(fā)器與三態(tài)輸出(三態(tài)輸出的八總線收發(fā)器)
文件頁(yè)數(shù): 5/9頁(yè)
文件大?。?/td> 44K
代理商: HD74BC640A
HD74BC640A
5
Switching Characteristics
(C
L
= 50 pF)
Ta = 25
°
C
V
CC
= 5.0 V
Min
Ta = –40 to +85
°
C
V
CC
= 5.0 V
±
10%
Min
Item
Symbol
Max
Max
Unit
Test Conditions
Propagation delay time
t
PLH
t
PHL
t
PLH
t
PHL
t
ZH
t
ZL
t
ZH
t
ZL
t
HZ
t
LZ
t
HZ
t
LZ
C
IN
C
I/O
3.0
6.0
3.0
7.0
ns
An to Bn
3.0
6.0
3.0
7.0
3.0
6.0
3.0
7.0
ns
Bn to An
3.0
6.0
3.0
7.0
Output enable time
3.0
9.0
3.0
11.0
ns
G
to Bn
3.0
9.0
3.0
11.0
3.0
9.0
3.0
11.0
ns
G
to An
3.0
9.0
3.0
11.0
Output disable time
3.0
8.0
3.0
10.0
ns
G
to Bn
3.0
8.0
3.0
10.0
3.0
8.0
3.0
10.0
ns
G
to An
3.0
8.0
3.0
10.0
Input capacitance
3.0 (Typ)
pF
V
IN
= V
CC
or GND
V
I/O
= V
CC
or GND
Output capacitance
15.0 (Typ)
pF
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