MAGNITUDE COMPARATORS. SN54LS682 Datasheet

SN54LS682 COMPARATORS. Datasheet pdf. Equivalent

SN54LS682 Datasheet
Recommendation SN54LS682 Datasheet
Part SN54LS682
Description 8-BIT MAGNITUDE COMPARATORS
Feature SN54LS682; 8-BIT MAGNITUDE COMPARATORS The SN54 / 74LS682, 684, 688 are 8-bit magnitude comparators. These devi.
Manufacture Motorola Inc
Datasheet
Download SN54LS682 Datasheet




Motorola  Inc SN54LS682
8-BIT MAGNITUDE
COMPARATORS
The SN54 / 74LS682, 684, 688 are 8-bit magnitude comparators. These
device types are designed to perform comparisons between two eight-bit
binary or BCD words. All device types provide P = Q outputs and the LS682
and LS684 have P>Q outputs also.
The LS682, LS684 and LS688 are totem pole devices. The LS682 has a
20 kpullup resistor on the Q inputs for analog or switch data.
CONNECTION DIAGRAMS (TOP VIEW)
VCC P=Q Q7 P7 Q6 P6 Q5 P5 Q4 P4
20 19 18 17 16 15 14 13 12 11
SN54/74LS682/684
1 2 3 4 5 6 7 8 9 10
P>Q P0 Q0 P1 Q1 P2 Q2 P3 Q3 GND
VCC P=Q Q7 P7 Q6 P6 Q5 P5 Q4 P4
20 19 18 17 16 15 14 13 12 11
SN54/74LS682
SN54/74LS684
SN54/74LS688
8-BIT MAGNITUDE
COMPARATORS
LOW POWER SCHOTTKY
20
1
20
1
20
1
J SUFFIX
CERAMIC
CASE 732-03
N SUFFIX
PLASTIC
CASE 738-03
DW SUFFIX
SOIC
CASE 751D-03
SN54/74LS688
1 2 3 4 5 6 7 8 9 10
G P0 Q0 P1 Q1 P2 Q2 P3 Q3 GND
TYPE
LS682
LS684
LS688
P=Q
yes
yes
yes
P>Q
yes
yes
no
OUTPUT
ENABLE
no
no
yes
OUTPUT
CONFIGURATION
totem-pole
totem-pole
totem-pole
PULLUP
yes
no
no
ORDERING INFORMATION
SN54LSXXXJ Ceramic
SN74LSXXXN Plastic
SN74LSXXXDW SOIC
FUNCTION TABLE
INPUTS
OUTPUTS
DATA
ENABLES
P, Q G, GT G2 P = Q P > Q
P=Q L L L H
P>Q L L H L
P<Q L L H H
X H HHH
H = HIGH Level, L = LOW Level, X = Irrelevant
FAST AND LS TTL DATA
5-603



Motorola  Inc SN54LS682
SN54/74LS682 SN54/74LS684 SN54/74LS688
GUARANTEED OPERATING RANGES
Symbol
Parameter
VCC
Supply Voltage
TA Operating Ambient Temperature Range
IOH Output Current — High
IOL Output Current — Low
Min Typ Max Unit
54 4.5 5.0 5.5
74 4.75 5.0 5.25
V
54 – 55 25 125 °C
74 0 25 70
54, 74
–0.4 mA
54 12 mA
74 24
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Symbol
Parameter
Min Typ Max Unit
Test Conditions
VIH Input HIGH Voltage
2.0
Guaranteed Input HIGH Voltage for
V All Inputs
VIL Input LOW Voltage
54
74
0.7 Guaranteed Input LOW Voltage for
0.8 V All Inputs
VIK
VOH
Input Clamp Diode Voltage
Output HIGH Voltage
54
74
– 0.65 – 1.5
2.5 3.5
2.7 3.5
V VCC = MIN, IIN = – 18 mA
V VCC = MIN, IOH = MAX, VIN = VIH
V or VIL per Truth Table
VOL
IIH
IIL
Output LOW Voltage
54, 74
74
Input HIGH Current
Input LOW Current
LS628-Q Inputs
Others
LS682-Q Inputs
Others
0.25 0.4
0.35 0.5
20
0.1
0.1
– 0.4
– 0.2
V IOL = 12 mA
V IOL = 24 mA
VCC = VCC MIN,
VIN = VIL or VIH
per Truth Table
µA VCC = MAX, VIN = 2.7 V
mA VCC = MAX, VIN = 5.5 V
mA VCC = MAX, VIN = 7.0 V
mA
VCC = MAX, VIN = 0.4 V
mA
IOS Short Circuit Current (Note 1) – 30 – 130
LS682
Power Supply
ICC Current
LS684
LS688
70
65
65
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
mA VCC = MAX
mA
mA VCC = MAX
mA
FAST AND LS TTL DATA
5-604



Motorola  Inc SN54LS682
(17)
P7
(18)
Q7
(15)
P6
(16)
Q6
(13)
P5
(14)
Q5
(11)
P4
(12)
Q4
P3
Q3
(8)
(9)
P2
Q2
(6)
(7)
P1
Q1
(4)
(5)
P0
Q0
(2)
(3)
SN54/74LS682 SN54/74LS684 SN54/74LS688
LOGIC DIAGRAMS
P7
(19)
P=Q
Q7
P6
Q6
P5
Q5
P4
Q4
P3
Q3
P2
Q2
P1
(1)
P>Q
Q1
P0
Q0
(17)
(18)
(15)
(16)
(13)
(14)
(11)
(12)
(8)
(9)
(6)
(7)
(4)
(5)
(2)
(3)
SN54 / 74LS682 thru LS684
(1)
G
SN54 / 74LS688
(19)
P=Q
FAST AND LS TTL DATA
5-605







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