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參數(shù)資料
| 型號： | 74LS33 |
| 廠商： | Motorola, Inc. |
| 英文描述： | QUAD 2-INPUT NOR BUFFER |
| 中文描述： | 四2輸入或非緩沖 |
| 文件頁數(shù)： | 2/4頁 |
| 文件大?。?/td> | 124K |
| 代理商： | 74LS33 |
5-88
FAST AND LS TTL DATA
SN54/74LS33
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE
(unless otherwise specified)
Symbol
Parameter
Limits
Unit
Test Conditions
Min
Typ
Max
VIH
Input HIGH Voltage
2.0
V
Guaranteed Input HIGH Voltage for
All Inputs
VIL
Input LOW Voltage
54
0.7
V
Guaranteed Input LOW Voltage for
All Inputs
74
0.8
VIK
IOH
Input Clamp Diode Voltage
–0.65
–1.5
V
VCC = MIN, IIN = –18 mA
VCC = MIN, VOH = MAX
Output HIGH Current
54, 74
250
μ
A
VOL
Output LOW Voltage
54, 74
0.25
0.4
V
IOL = 12 mA
VCC = VCC MIN,
per Truth Table
74
0.35
0.5
V
IOL = 24 mA
VIN = VIL or VIH
IIH
Input HIGH Current
20
μ
A
VCC = MAX, VIN = 2.7 V
VCC = MAX, VIN = 7.0 V
0.1
mA
IIL
Input LOW Current
–0.4
mA
VCC = MAX, VIN = 0.4 V
ICC
Power Supply Current
Total, Output HIGH
3.6
mA
VCC = MAX
Total, Output LOW
13.8
AC CHARACTERISTICS
(TA = 25
°
C)
Symbol
Parameter
Limits
Unit
Test Conditions
Min
Typ
Max
tPLH
tPHL
Turn-Off Delay, Input to Output
20
32
ns
CL = 45 pF
Turn-On Delay, Input to Output
18
28
ns
VCC = 5.0 V, RL = 667
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