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| SN74LS393 Datasheet, PDF (4/8 Pages) ON Semiconductor – Dual 4−Stage Binary Counter | |||
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SN74LS393
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Symbol
VIH
Parameter
Input HIGH Voltage
Min Typ Max Unit
Test Conditions
2.0
V
Guaranteed Input HIGH Voltage for
All Inputs
VIL
Input LOW Voltage
0.8
V
Guaranteed Input LOW Voltage for
All Inputs
VIK
Input Clamp Diode Voltage
â0.65 â1.5
V
VCC = MIN, IIN = â 18 mA
VOH
Output HIGH Voltage
2.7
3.5
V
VCC = MIN, IOH = MAX, VIN = VIH
or VIL per Truth Table
VOL
Output LOW Voltage
0.25 0.4
0.35 0.5
V
IOL = 4.0 mA
V
IOL = 8.0 mA
VCC = VCC MIN,
VIN = VIL or VIH
per Truth Table
IIH
Input HIGH Current
20
μA VCC = MAX, VIN = 2.7 V
0.1
mA VCC = MAX, VIN = 7.0 V
MR
â0.4 mA
IIL
Input LOW Current
CP, CP0
â1.6 mA
CP1
â2.4 mA
IOS
Short Circuit Current (Note 2)
â 20
â100 mA
ICC
Power Supply Current
26
mA
2. Not more than one output should be shorted at a time, nor for more than 1 second.
VCC = MAX, VIN = 0.4 V
VCC = MAX
VCC = MAX
AC CHARACTERISTICS (TA = 25°C, VCC = 5.0 V)
Limits
Symbol
Parameter
Min Typ Max
fMAX
Maximum Clock Frequency
CP0 to Q0
25
35
fMAX
Maximum Clock Frequency
CP1 to Q1
20
tPLH
Propagation Delay,
tPHL
CP to Q0
12
20
13
20
tPLH
tPHL
CP to Q3
40
60
40
60
tPHL
MR to Any Output
24
39
Unit
MHz
MHz
ns
ns
ns
Test Conditions
CL = 15 pF
AC SETUP REQUIREMENTS (TA = 25°C, VCC = 5.0 V)
Limits
Symbol
Parameter
Min
Typ
Max
Unit
tW
Clock Pulse Width
20
ns
tW
MR Pulse Width
20
ns
trec
Recovery Time
25
ns
Test Conditions
VCC = 5.0 V
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