参数资料
型号: HD74BC645A
厂商: Hitachi,Ltd.
英文描述: Octal Bus Transceivers With 3 State Outputs(三态输出的八总线收发器)
中文描述: 八路总线收发器与三态输出(三态输出的八总线收发器)
文件页数: 5/9页
文件大小: 43K
代理商: HD74BC645A
HD74BC645A
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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