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參數(shù)資料
| 型號(hào)： | LS244 |
| 廠商： | System Logic Semiconductor Co., Ltd. |
| 英文描述： | Octal 3-State Noninverting Buffer/Line Driver/Line Receiver |
| 中文描述： | 八路三態(tài)同相緩沖器/線路驅(qū)動(dòng)器/線接收器 |
| 文件頁(yè)數(shù)： | 2/4頁(yè) |
| 文件大?。?/td> | 40K |
| 代理商： | LS244 |
SL74LS244
S ystem Logic
Semiconductor
SLS
MAXIMUM RATINGS
*
Symbol
Parameter
Value
Unit
V
CC
Supply Voltage
7.0
V
V
IN
Input Voltage
7.0
V
V
OUT
Output Voltage
5.5
V
Tstg
Storage Temperature Range
-65 to +150
°
C
*
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
Supply Voltage
4.75
5.25
V
V
IH
High Level Input Voltage
2.0
V
V
IL
Low Level Input Voltage
0.8
V
I
OH
High Level Output Current
-15
mA
I
OL
Low Level Output Current
24
mA
T
A
Ambient Temperature Range
0
+70
°
C
DC ELECTRICAL CHARACTERISTICS
over full operating conditions
Guaranteed Limit
Symbol
Parameter
Test Conditions
Min
Max
Unit
V
IK
Input Clamp Voltage
V
CC
= min, I
IN
= -18 mA
-1.5
V
V
OH
High Level Output Voltage
V
CC
= min, I
OH
= -1.0 mA
2.7
V
V
CC
= min, I
OH
= -3.0 mA
2.4
V
CC
= min, I
OH
= -15 mA
2.0
V
OL
Low Level Output Voltage
V
CC
= min, I
OL
= 12 mA
0.4
V
V
CC
= min, I
OL
= 24 mA
0.5
V
T+
- V
T-
Hysteresis
V
CC
= min
0.2
V
I
OZH
Output Off Current HIGH
V
CC
= max, V
OUT
= 2.7 V
20
μ
A
μ
A
μ
A
I
OZL
Output Off Current LOW
V
CC
= max, V
OUT
= 0.4 V
-20
I
IH
High Level Input Current
V
CC
= max, V
IN
= 2.7 V
20
V
CC
= max, V
IN
= 7.0 V
0.1
mA
I
IL
Low Level Input Current
V
CC
= max, V
IN
= 0.4 V
-0.2
mA
I
O
Output Short Circuit Current
V
CC
= max, V
O
=0 V
(Note 1)
-40
-225
mA
I
CC
Supply
Outputs High
V
CC
= max
27
mA
Current
Outputs Low
Outputs open
46
All outputs
disabled
54
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