參數(shù)資料
型號(hào): CD74HCT242
廠商: Texas Instruments, Inc.
英文描述: High Speed CMOS Logic Quad-Bus Transceiver with Three-State Outputs
中文描述: 高速CMOS邏輯四總線收發(fā)器與三態(tài)輸出
文件頁(yè)數(shù): 4/7頁(yè)
文件大?。?/td> 48K
代理商: CD74HCT242
4
Input Leakage
Current
I
I
V
CC
or
GND
-
6
-
-
±
0.1
-
±
1
-
±
1
μ
A
Quiescent Device
Current
I
CC
V
CC
or
GND
0
6
-
-
8
-
80
-
160
μ
A
Three-State Leakage
Current
I
OZ
V
IL
or
V
IH
-
6
-
-
±
0.5
-
±
0.5
-
±
10
μ
A
HCT TYPES
High Level Input
Voltage
V
IH
-
-
4.5 to
5.5
2
-
-
2
-
2
-
V
Low Level Input
Voltage
V
IL
-
-
4.5 to
5.5
-
-
0.8
-
0.8
-
0.8
V
High Level Output
Voltage
CMOS Loads
V
OH
V
IH
or
V
IL
-0.02
4.5
4.4
-
-
4.4
-
4.4
-
V
High Level Output
Voltage
TTL Loads
-6
4.5
3.98
-
-
3.84
-
3.7
-
V
Low Level Output
Voltage
CMOS Loads
V
OL
V
IH
or
V
IL
0.02
4.5
-
-
0.1
-
0.1
-
0.1
V
Low Level Output
Voltage
TTL Loads
6
4.5
-
-
0.26
-
0.33
-
0.4
V
Input Leakage
Current
I
I
V
CC
to
GND
0
5.5
-
-
±
0.1
-
±
1
-
±
1
μ
A
Quiescent Device
Current
I
CC
V
CC
or
GND
0
5.5
-
-
8
-
80
-
160
μ
A
Additional Quiescent
Device Current Per
Input Pin: 1 Unit Load
(Note 4)
I
CC
V
CC
-2.1
-
4.5 to
5.5
-
100
360
-
450
-
490
μ
A
Three-State Leakage
Current
I
OZ
V
IL
or
V
IH
-
5.5
-
-
±
0.5
-
±
5.0
-
±
10
μ
A
NOTE:
4. For dual-supply systems theoretical worst case (V
I
= 2.4V, V
CC
= 5.5V) specification is 1.8mA.
DC Electrical Specifications
(Continued)
PARAMETER
SYMBOL
TEST
CONDITIONS
V
CC
(V)
25
o
C
-40
o
C TO 85
o
C
-55
o
C TO 125
o
C
UNITS
V
I
(V)
I
O
(mA)
MIN
TYP
MAX
MIN
MAX
MIN
MAX
HCT Input Loading Table
INPUT
UNIT LOADS
An, Bn
1.1
OEA, OEB
0.6
NOTE: Unit Load is
I
CC
limit specified in DC Electrical
Specifications table, e.g., 360
μ
A max at 25
o
C.
CD74HCT242, CD74HC243, CD74HCT243
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