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參數(shù)資料
| 型號(hào)： | IN74LS245DW |
| 廠商： | INTEGRAL JOINT STOCK COMPANY |
| 英文描述： | Octal Bus Transceivers And Registers With 3-State Outputs 24-SOIC -40 to 85 |
| 中文描述： | 八路三態(tài)同相總線收發(fā)器 |
| 文件頁(yè)數(shù)： | 2/5頁(yè) |
| 文件大?。?/td> | 332K |
| 代理商： | IN74LS245DW |
IN74LS245
MAXIMUM RATINGS
*
Symbol
Parameter
Value
Unit
V
CC
V
IN
V
OUT
Tstg
Supply Voltage
7.0
V
Input Voltage
7.0
V
Output Voltage
5.5
V
°
C
Storage Temperature Range
-65 to +150
*
Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Min
Max
Unit
V
CC
V
IH
V
IL
I
OH
I
OL
T
A
Supply Voltage
4.75
5.25
V
High Level Input Voltage
2.0
V
Low Level Input Voltage
0.8
V
High Level Output Current
-15
mA
Low Level Output Current
24
mA
°
C
Ambient Temperature Range
0
+70
DC ELECTRICAL CHARACTERISTICS
over full operating conditions
Symbol
Parameter
Guaranteed Limit
Min
Test Conditions
Max
Unit
V
IK
V
OH
Input Clamp Voltage
V
CC
= min, I
IN
= -18 mA
V
CC
= min, I
OH
= -1.0 mA
V
CC
= min, I
OH
= -3.0 mA
V
CC
= min, I
OH
= -15 mA
V
CC
= min, I
OL
= 12 mA
V
CC
= min, I
OL
= 24 mA
V
CC
= min
V
CC
= max, V
OUT
= 2.7 V
-1.5
V
High Level Output Voltage
2.7
V
2.4
2.0
V
OL
Low Level Output Voltage
0.4
V
0.5
V
T+
- V
T-
I
OZH
Hysteresis
0.2
V
μ
A
Output Off Current HIGH
20
I
OZL
I
IH
Output Off Current LOW
V
CC
= max, V
OUT
= 0.4 V
V
CC
= max, V
IN
= 2.7 V
-0.2
mA
μ
A
High Level Input Current
20
V
CC
= max, V
IN
= 5.5 V
(A or B)
0.1
mA
V
CC
= max, V
IN
= 7.0 V
for Pin1, Pin 19
0.1
I
IL
I
O
Low Level Input Current
V
CC
= max, V
IN
= 0.4 V
V
CC
= max, V
O
=0 V
(Note 1)
-0.2
mA
Output Short Circuit Current
-40
-225
mA
I
CC
Supply
Outputs High
V
CC
= max
Outputs open
70
mA
Current
Outputs Low
90
All outputs disable
95
Note 1: Not more thanone output should be shorted at a time, and duration of the short-circuit should not exceed one
second.
2
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