參數(shù)資料
型號: HD74HC643
廠商: Hitachi,Ltd.
英文描述: Octal Bus Transceivers (with 3-state outputs)
中文描述: 八路總線收發(fā)器(3態(tài)輸出)
文件頁數(shù): 7/11頁
文件大?。?/td> 69K
代理商: HD74HC643
HD74HC640/HD74HC643
7
AC Characteristics
(C
L
= 50 pF, Input t
r
= t
f
= 6 ns)
Ta = 25
°
C
Ta = –40 to
+85
°
C
Item
Symbol
V
CC
(V)
2.0
Min Typ Max Min
Max
Unit
Test Conditions
Propagation delay t
PLH
time
90
115
ns
t
PHL
4.5
12
18
23
6.0
15
20
Output enable
t
ZH
t
ZL
2.0
230 —
290
ns
time
4.5
15
46
58
6.0
39
49
Output disable
t
HZ
t
LZ
2.0
215 —
270
ns
time
4.5
17
43
54
6.0
37
46
Output rise/fall
t
TLH
t
THL
2.0
60
75
ns
time
4.5
4
12
15
6.0
10
13
Input capacitance
Cin
5
10
10
pF
相關PDF資料
PDF描述
HD74HC646 Octal Bus Transceivers/Registers with Multiplexed 3-state outputs
HD74HC648 Octal Bus Transceivers/Registers with Multiplexed 3-state outputs
HD74HC651 8-Bit Universal Shift/Storage Registers With 3-State Outputs 20-CDIP -55 to 125
HD74HC652 Octal Bus Transceivers/Registers(with inverted 3-state outputs)
HD74HC668 Synchronous UP/Down Decade,4-bit binary Counter
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