參數(shù)資料
型號: HD74AC298
廠商: Hitachi,Ltd.
英文描述: Octal Buffers And Drivers With 3-State Outputs 20-CDIP -55 to 125
中文描述: 四2輸入多路復用器與存儲
文件頁數(shù): 3/10頁
文件大小: 58K
代理商: HD74AC298
HD74AC298/HD74ACT298
3
Logic Diagram
S
CP
R
S
Q
a
CP
R
S
Q
b
CP
R
S
Q
c
CP
R
S
Q
d
Q
d
Q
c
Q
b
Q
a
I
1a
I
0a
I
1b
I
0b
I
1c
I
0c
I
1d
I
0d
CP
DC Characteristics
(unless otherwise specified)
Item
Symbol
Max
Unit
Condition
Maximum quiescent supply current
I
CC
80
μ
A
V
= V
or ground, V
CC
= 5.5 V,
Ta = Worst case
Maximum quiescent supply current
I
CC
8.0
μ
A
V
= V
CC
or ground, V
CC
= 5.5 V,
Ta = 25
°
C
Maximum I
CC
/input (HD74ACT298)
I
CCT
1.5
mA
V
= V
– 2.1 V, V
CC
= 5.5 V,
Ta = Worst case
AC Characteristics: HD74AC298
Ta = +25
°
C
C
L
= 50 pF
Min
Ta = –40
°
C to +85
°
C
C
L
= 50 pF
Min
Item
Symbol
V
CC
(V)*
1
3.3
Typ
Max
Max
Unit
Maximum count
f
max
90
70
MHz
frequency
5.0
110
100
Propagation delay
t
PLH
3.3
1.0
7.0
10.0
1.0
11.5
ns
CP to Q
5.0
1.0
5.0
7.5
1.0
8.5
Propagation delay
t
PHL
3.3
1.0
7.5
10.0
1.0
11.5
CP to Q
Note:
5.0
1.0
5.5
7.5
1.0
8.5
1. Voltage Range 3.3 is 3.3 V
±
0.3 V
Voltage Range 5.0 is 5.0 V
±
0.5 V
相關PDF資料
PDF描述
HD74AC HD74AC Series Common Information
HD74ALVC162244 16-bit Buffer / Driver with 3-state Outputs(帶三態(tài)輸出的16位緩沖器/驅(qū)動器)
HD74ALVC162334 16-bit Universal Bus Driver with 3-state Outputs(帶三態(tài)輸出的16位通用總線驅(qū)動器)
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