74LS05
器件描述:Hex Inverters with Open-Drain Outputs
文件大小:26.21KB,共3页
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器件资料摘要:
SL74LS05
System Logic
Semiconductor SLS
Hex Inverters
with Open-Drain Outputs
This device contains idenpendent inverts. It performs the Boolean
function Y=A. The open collector outputs require pull-up resistor to
perform correctly. Open-collector devices are often used to generate
higher VOH levels.
Pull-Up Resistor Equations
RMAX=
RMIN=
Where: N1(IOH)=total maximumoutput high current for all outputs tied
to pull-up resistor
N2(IIH)=total input high current for all inputs tied to pull-up
resistor
N3(IIL)=total input low current for all inputs tied to pull-up
resistor
ORDERING INFORMATION
SL74LS05N Plastic
SL74LS05D SOIC
TA = -0° to 70° C
for all packages
LOGIC DIAGRAM
PIN 14 =VCC
PIN 7 = GND
PIN ASSIGNMENT
FUNCTION TABLE
Inputs Output
A Y
L H
H L
VCC(Min) - VOH
VCC(Max) - VOL
N1(IOH) + N2(IIH)
(IOL + N3(IIL)