參數(shù)資料
型號(hào)： 74LS13
廠商： Motorola, Inc.
英文描述： SCHMITT TRIGGERS DUAL GATE/HEX INVERTER
中文描述： 施密特觸發(fā)器雙柵/六角逆變器
文件頁(yè)數(shù)： 2/3頁(yè)
文件大?。?/td> 62K
代理商： 74LS13
5-25
FAST AND LS TTL DATA
SN54/74LS13
SN54/74LS14
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE
(unless otherwise specified)
Symbol
Parameter
Limits
Unit
Test Conditions
Min
Typ
Max
VT+
VT–
VT+–VT–
VIK
Positive-Going Threshold Voltage
1.5
2.0
V
VCC = 5.0 V
VCC = 5.0 V
VCC = 5.0 V
VCC = MIN, IIN = –18 mA
Negative-Going Threshold Voltage
0.6
1.1
V
Hysteresis
0.4
0.8
V
Input Clamp Diode Voltage
–0.65
–1.5
V
VOH
Output HIGH Voltage
54
2.5
3.4
V
VCC = MIN, IOH = –400
μ
A, VIN = VIL
74
2.7
3.4
V
VOL
Output LOW Voltage
54, 74
0.25
0.4
V
VCC = MIN, IOL = 4.0 mA, VIN = 2.0 V
VCC = MIN, IOL = 8.0 mA, VIN = 2.0 V
VCC = 5.0 V, VIN = VT+
VCC = 5.0 V, VIN = VT–
VCC = MAX, VIN = 2.7 V
VCC = MAX, VIN = 7.0 V
74
0.35
0.5
V
IT+
IT–
Input Current at Positive-Going Threshold
–0.14
mA
Input Current at Negative-Going Threshold
–0.18
mA
IIH
Input HIGH Current
1.0
20
μ
A
0.1
mA
IIL
IOS
Input LOW Current
–0.4
mA
VCC = MAX, VIN = 0.4 V
VCC = MAX, VOUT = 0 V
Short Circuit Current (Note 1)
–20
–100
mA
ICC
Power Supply Current
Total, Output HIGH
Total, Output LOW
LS13
2.9
6.0
mA
VCC = MAX
LS14
8.6
16
LS13
4.1
7.0
LS14
12
21
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
AC CHARACTERISTICS
(TA = 25
°
C)
Symbol
Parameter
Max
Unit
Test Conditions
LS13
LS14
tPLH
tPHL
Propagation Delay, Input to Output
22
22
ns
CL = 15 pF
Propagation Delay, Input to Output
27
22
ns
VCC = 5.0 V
Figure 1. AC Waveforms
3 V
0 V
VIN
VOUT
1.6 V
0.8 V
tPHL
1.3 V
1.3 V
tPLH
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