SN54LS682J [MOTOROLA]
8-BIT MAGNITUDE COMPARATORS; 8位幅度比较
| 型号： | SN54LS682J |
| 厂家： | 
MOTOROLA |
| 描述： | 8-BIT MAGNITUDE COMPARATORS |
| 文件： | 总6页 (文件大小：219K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SN54/74LS682
SN54/74LS684
SN54/74LS688
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.
8-BIT MAGNITUDE
COMPARATORS
The LS682, LS684 and LS688 are totem pole devices. The LS682 has a
20 kΩ pullup resistor on the Q inputs for analog or switch data.
LOW POWER SCHOTTKY
CONNECTION DIAGRAMS (TOP VIEW)
J SUFFIX
CERAMIC
CASE 732-03
20
1
SN54/74LS682/684
N SUFFIX
PLASTIC
CASE 738-03
20
1
DW SUFFIX
SOIC
CASE 751D-03
20
1
SN54/74LS688
ORDERING INFORMATION
SN54LSXXXJ
Ceramic
SN74LSXXXN Plastic
SN74LSXXXDW SOIC
FUNCTION TABLE
INPUTS
ENABLES
OUTPUTS
DATA
P, Q
OUTPUT
ENABLE
OUTPUT
CONFIGURATION
TYPE
LS682
LS684
LS688
P = Q
yes
P > Q
yes
yes
no
PULLUP
yes
G, GT
G2
P = Q P > Q
no
no
totem-pole
totem-pole
totem-pole
P = Q
P > Q
P < Q
X
L
L
L
L
L
H
H
H
H
L
yes
no
yes
yes
no
L
L
H
H
H
H
H = HIGH Level, L = LOW Level, X = Irrelevant
FAST AND LS TTL DATA
5-603
SN54/74LS682 • SN54/74LS684 • SN54/74LS688
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
Typ
Max
Unit
V
CC
Supply Voltage
54
74
4.5
4.75
5.0
5.0
5.5
5.25
V
T
A
Operating Ambient Temperature Range
54
74
–55
0
25
25
125
70
°C
I
I
Output Current — High
Output Current — Low
54, 74
–0.4
mA
mA
OH
54
74
12
24
OL
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Min
Typ
Max
Symbol
Parameter
Input HIGH Voltage
Unit
Test Conditions
Guaranteed Input HIGH Voltage for
All Inputs
V
2.0
V
IH
54
74
0.7
0.8
Guaranteed Input LOW Voltage for
All Inputs
V
V
V
Input LOW Voltage
V
IL
Input Clamp Diode Voltage
Output HIGH Voltage
–0.65
3.5
–1.5
V
V
V
V
V
= MIN, I = –18 mA
IN
IK
CC
54
74
2.5
2.7
= MIN, I
OH
= MAX, V = V
IN
CC
IH
OH
or V per Truth Table
IL
3.5
V
V
= V
CC
MIN,
= V or V
IL IH
54, 74
74
0.25
0.35
0.4
0.5
V
V
I
I
= 12 mA
= 24 mA
CC
IN
OL
V
I
Output LOW Voltage
OL
per Truth Table
OL
20
0.1
µA
mA
mA
mA
mA
mA
mA
mA
mA
V
V
V
= MAX, V = 2.7 V
IN
CC
CC
CC
LS628-Q Inputs
Others
= MAX, V = 5.5 V
IN
Input HIGH Current
Input LOW Current
IH
0.1
= MAX, V = 7.0 V
IN
LS682-Q Inputs
Others
–0.4
–0.2
–130
70
I
I
V
= MAX, V = 0.4 V
IN
IL
CC
CC
Short Circuit Current (Note 1)
–30
V
= MAX
= MAX
OS
LS682
Power Supply
Current
LS684
65
I
V
CC
CC
LS688
65
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
FAST AND LS TTL DATA
5-604
SN54/74LS682 • SN54/74LS684 • SN54/74LS688
LOGIC DIAGRAMS
SN54/74LS682 thru LS684
SN54/74LS688
FAST AND LS TTL DATA
5-605
SN54/74LS682•SN54/74LS684•SN54/74LS688
AC CHARACTERISTICS (T = 25°C)
A
SN54/74LS682
Limits
Typ
Symbol
Parameter
Unit
Test Conditions
Min
Min
Min
Max
t
t
13
15
25
25
PLH
PHL
Propagation Delay, P to P = Q
ns
t
t
14
15
25
25
PLH
PHL
Propagation Delay, Q to P = Q
Propagation Delay, P to P > Q
Propagation Delay, Q to P > Q
ns
ns
ns
V
C
R
= 5.0 V
= 45 pF
= 667 Ω
CC
L
L
t
t
20
15
30
30
PLH
PHL
t
t
21
19
30
30
PLH
PHL
SN54/74LS684
Limits
Typ
Symbol
Parameter
Unit
Test Conditions
Max
t
t
15
17
25
25
PLH
PHL
Propagation Delay, P to P = Q
ns
t
t
16
15
25
25
PLH
PHL
Propagation Delay, Q to P = Q
Propagation Delay, P to P > Q
Propagation Delay, Q to P > Q
ns
ns
ns
V
C
R
= 5.0 V
= 45 pF
= 667 Ω
CC
L
L
t
t
22
17
30
30
PLH
PHL
t
t
24
20
30
30
PLH
PHL
SN54/74LS688
Limits
Typ
Symbol
Parameter
Unit
Test Conditions
Max
t
t
12
17
18
23
PLH
PHL
Propagation Delay, P to P = Q
ns
V
C
R
= 5.0 V
= 45 pF
= 667 Ω
CC
L
L
t
t
12
17
18
23
PLH
PHL
Propagation Delay, Q to P = Q
ns
ns
t
t
12
13
18
20
PLH
PHL
Propagation Delay, G , G1 to P = Q
FAST AND LS TTL DATA
5-606
Case 751D-03 DW Suffix
20-Pin Plastic
SO-20 (WIDE)
-A-
20
1
11
10
-B-
P
G
R X 45°
C
-T-
M
J
F
°
°
°
°
K
D
Case 732-03 J Suffix
20-Pin Ceramic Dual In-Line
20
11
10
1
B
C
A
L
F
N
K
J
M
H
G
D
°
°
°
°
Case 738-03 N Suffix
20-Pin Plastic
-A-
20
1
11
10
B
C
L
-T-
K
E
N
M
J
G
F
D
°
°
°
°
FAST AND LS TTL DATA
5-607
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the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit,
andspecifically disclaims any and all liability, includingwithoutlimitationconsequentialorincidentaldamages. “Typical” parameters can and do vary in different
applications. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Motorola does
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associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part.
Motorola and
are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer.
SYMBOL
SW1
SW2
Closed
Open
Literature Distribution Centers:
USA: Motorola Literature Distribution; P.O. Box 20912; Phoenix, Arizona 85036.
t
Open
PZH
EUROPE: Motorola Ltd.; European Literature Centre; 88 Tanners Drive, Blakelands, Milton Keynes, MK14 5BP, England.
JAPAN: Nippon Motorola Ltd.; 4-32-1, Nishi-Gotanda, Shinagawa-ku, Tokyo 141, Japan.
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Closed
PZL
ASIA PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Center, No. 2 Dai King Street, Tai Po Industrial Estate, Tai Po, N.T., Hong Kong.
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Closed
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◊
相关型号：
SN54LS682JD
LS SERIES, 8-BIT MAGNITUDE COMPARATOR, INVERTED OUTPUT, CDIP20, CERAMIC, DIP-20
MOTOROLA
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