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Part Name
Description
M74HC85B1R View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
M74HC85B1R
4-BIT MAGNITUDE COMPARATOR
STMicroelectronics
M74HC85B1R Datasheet PDF : 11 Pages
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M54/M74HC85
TRUTH TABLE
A3>B3
A3=B3
A3=B3
A3=B3
COMPARING INPUTS
X
A2>B2
A2=B2
A2=B2
X
X
A1>B1
A1=B1
A3=B3
A2=B2
A1=B1
A3=B3
A3=B3
A3=B3
A3<B3
X: DON’T CARE
A2=B2
A2=B2
A2<B2
X
A1=B1
A1<B1
X
X
X
X
X
A0>B0
A0=B0
A0<B0
X
X
X
CASCADING INPUTS
A>B A<B A=B
X
X
X
X
X
X
X
X
X
X
X
X
L
L
L
X
X
H
L
H
L
H
L
L
H
H
L
X
X
X
X
X
X
X
X
X
X
X
X
OUTPUTS
A>B A<B A=B
H
L
L
H
L
L
H
L
L
H
L
L
H
H
L
L
L
H
L
H
L
H
L
L
L
L
L
L
H
L
L
H
L
L
H
L
L
H
L
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
CC
Supply Voltage
-0.5 to +7
V
V
I
DC Input Voltage
-0.5 to V
CC
+ 0.5
V
V
O
DC Output Voltage
I
IK
DC Input Diode Current
-0.5 to V
CC
+ 0.5
V
±
20
mA
I
OK
DC Output Diode Current
I
O
DC Output Source Sink Current Per Output Pin
±
20
mA
±
25
mA
I
CC
or I
GND
DC V
CC
or Ground Current
±
50
mA
P
D
Power Dissipation
T
stg
Storage Temperature
T
L
Lead Temperature (10 sec)
500 (*)
mW
-65 to +150
o
C
300
o
C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition isnotimplied.
(*) 500 mW:
≅
65
o
C derate to 300 mW by 10mW/
o
C: 65
o
C to 85
o
C
3/11
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