5962-9091601MSA [TI]
AC SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, CDFP20, CERPACK-20;型号: | 5962-9091601MSA |
厂家: | TEXAS INSTRUMENTS |
描述: | AC SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, CDFP20, CERPACK-20 CD 输出元件 逻辑集成电路 |
文件: | 总9页 (文件大小:175K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
September 1998
54AC520 54ACT520
•
8-Bit Identity Comparator
General Description
The ’AC/’ACT520 are expandable 8-bit comparators. They
compare two words of up to eight bits each and provide a
LOW output when the two words match bit for bit. The
expansion input IA = B also serves as an active LOW enable
input.
n Expandable to any word length
n 20-pin package
n Outputs source/sink 24 mA
n ’ACT520 has TTL-compatible inputs
n Standard Microcircuit Drawing (SMD)
54AC520: 5962-90916
54ACT520: 5962-89793
Features
n Compares two 8-bit words in 6.5 ns typ
Logic Symbols
IEEE/IEC
DS100234-1
DS100234-4
Pin Names
A0–A7
Description
Word A Inputs
B0–B7
TA = B
OA = B
Word B Inputs
Expansion or Enable Input
Identity Output
™
FACT is a trademark of Fairchild Semiconductor Corporation.
© 2001 National Semiconductor Corporation
DS100234
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Connection Diagrams
Pin Assignment
for DIP and Flatpak
Pin Assignment
for LCC
DS100234-3
DS100234-2
Inputs
A, B
Outputs
IA = B
OA = B
*
*
L
L
A = B
L
H
H
H
≠
A
B
H
H
A = B
≠
A
B
H = HIGH Voltage Level
L = LOW Voltage Level
*
A
= B , A = B , A = B , etc.
0 1 1 2 2
0
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2
Logic Diagram
DS100234-5
Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.
3
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Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Recommended Operating
Conditions
Supply Voltage (VCC
’AC
)
2.0V to 6.0V
4.5V to 5.5V
0V to VCC
Supply Voltage (VCC
)
−0.5V to +7.0V
’ACT
DC Input Diode Current (IIK
VI = −0.5V
)
Input Voltage (VI)
Output Voltage (VO)
−20 mA
+20 mA
0V to VCC
VI = VCC + 0.5V
Operating Temperature (TA)
54AC/ACT
DC Input Voltage (VI)
−0.5V to VCC + 0.5V
−55˚C to +125˚C
125 mV/ns
DC Output Diode Current (IOK
VO = −0.5V
)
Minimum Input Edge Rate (∆V/∆t)
’AC Devices
−20 mA
+20 mA
VO = VCC + 0.5V
VIN from 30% to 70% of VCC
DC Output Voltage (VO)
DC Output Source
−0.5V to VCC + 0.5V
@
VCC 3.3V, 4.5V, 5.5V
Minimum Input Edge Rate (∆V/∆t)
’ACT Devices
±
±
or Sink Current (IO)
DC VCC or Ground Current
50 mA
50 mA
VIN from 0.8V to 2.0V
per Output Pin (ICC or IGND
)
@
VCC 4.5V, 5.5V
125 mV/ns
Storage Temperature (TSTG
Junction Temperature (TJ)
CDIP
)
−65˚C to +150˚C
Note 1: Absolute maximum ratings are those values beyond which damage
to the device may occur. The databook specifications should be met, without
exception, to ensure that the system design is reliable over its power supply,
temperature, and output/input loading variables. National does not recom-
175˚C
™
mend operation of FACT circuits outside databook specifications.
DC Characteristics for ’AC Family Devices
54AC
Symbol
Parameter
VCC
(V)
TA
=
Units
Conditions
−55˚C to +125˚C
Guaranteed Limits
VIH
Minimum High Level
Input Voltage
3.0
4.5
5.5
3.0
4.5
5.5
3.0
4.5
5.5
2.1
3.15
3.85
0.9
VOUT = 0.1V
V
V
V
or VCC − 0.1V
VIL
Maximum Low Level
Input Voltage
VOUT = 0.1V
1.35
1.65
2.9
or VCC − 0.1V
VOH
Minimum High Level
Output Voltage
IOUT = −50 µA
4.4
5.4
(Note 2)
VIN = VILor VIH
3.0
4.5
5.5
3.0
4.5
5.5
2.4
3.7
4.7
0.1
0.1
0.1
IOH = −12 mA
IOH = −24 mA
IOH = −24 mA
IOUT = 50 µA
V
V
VOL
Maximum Low Level
Output Voltage
(Note 2)
VIN = VILor VIH
3.0
4.5
5.5
5.5
0.50
0.50
0.50
IOL = 12 mA
IOL = 24 mA
IOL = 24 mA
VI = VCC, GND
A Inputs Only
VI = VCC
V
±
IIN
Maximum Input
1.0
µA
µA
Leakage Current
Maximum Input
IIH
5.5
20.0
High Leakage Current
B Inputs Only
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4
DC Characteristics for ’AC Family Devices (Continued)
54AC
Symbol
Parameter
VCC
(V)
TA
=
Units
Conditions
−55˚C to +125˚C
Guaranteed Limits
−1.5
IIL
Maximum Input
5.5
5.5
mA
mA
VI = VCC
Low Leakage Current
B Inputs Only
IOLD
Minimum Dynamic
(Note 3)
50
VOLD = 1.65V Max
IOHD
ICC
Output Current
5.5
5.5
−50
mA
µA
VOHD = 3.85V Min
VIN = VCC
Maximum Quiescent
Supply Current
80.0
ICC
Maximum Quiescent
Supply Current
5.5
8.0
mA
VIN = GND
Note 2: All outputs loaded; thresholds on input associated with output under test.
Note 3: Maximum test duration 2.0 ms, one output loaded at a time.
DC Characteristics for ’ACT Family Devices
54ACT
Symbol
Parameter
VCC
(V)
TA
=
Units
Conditions
−55˚C to +125˚C
Guaranteed Limits
VIH
VIL
Minimum High Level
Input Voltage
4.5
5.5
4.5
5.5
4.5
5.5
2.0
2.0
0.8
0.8
4.4
5.4
V
V
V
VOUT = 0.1V
or VCC − 0.1V
VOUT = 0.1V
or VCC − 0.1V
IOUT = −50 µA
Maximum Low Level
Input Voltage
VOH
Minimum High Level
Output Voltage
(Note 4)
VIN = VILor VIH
4.5
5.5
4.5
5.5
3.70
4.70
0.1
V
V
IOH = −24 mA
IOH = −24 mA
IOUT = 50 µA
VOL
Maximum Low Level
Output Voltage
0.1
(Note 4)
VIN = VILor VIH
4.5
5.5
5.5
0.50
0.50
V
IOL = 24 mA
IOL = 24 mA
VI = VCC, GND
±
IIN
Maximum Input
Leakage Current
Maximum Input
High Leakage Current
Maximum Input
Low Leakage Current
Maximum
1.0
µA
µA
mA
mA
mA
IIH
5.5
5.5
5.5
5.5
10.0
−1.0
1.6
VI = VCC
B Inputs Only
VI = VCC
IIL
B Inputs Only
VI = VCC − 2.1V
ICCT
ICC/Input
IOLD
Minimum Dynamic
(Note 5)
50
VOLD = 1.65V Max
IOHD
ICC
Output Current
5.5
5.5
−50
mA
µA
VOHD = 3.85V Min
VIN = VCC
Maximum Quiescent
Supply Current
80.0
or GND
5
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DC Characteristics for ’ACT Family Devices (Continued)
54ACT
Symbol
Parameter
VCC
(V)
TA
=
Units
Conditions
−55˚C to +125˚C
Guaranteed Limits
8.0
ICC
Maximum Quiescent
Supply Current
5.5
mA
VIN = GND
Note 4: All outputs loaded; thresholds on input associated with output under test.
Note 5: Maximum test duration 2.0 ms, one output loaded at a time.
AC Electrical Characteristics
54AC
VCC
TA = −55˚C
to +125˚C
CL = 50 pF
Fig.
No.
Symbol
Parameter
(V)
Units
(Note 6)
Min
1.0
1.5
1.0
1.5
1.0
1.5
1.0
1.5
Max
tPLH
tPHL
tPLH
tPHL
Propagation Delay
An or Bn to OA = B
Propagation Delay
An or Bn to OA = B
Propagation Delay
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
14.0
10.5
15.0
11.0
10.0
7.5
ns
ns
ns
ns
I
A = B to OA = B
Propagation Delay
A = B to OA = B
10.5
8.0
I
±
Note 6: Voltage Range 3.3 is 3.3V 0.3V
±
Voltage Range 5.0 is 5.0V 0.5V
AC Electrical Characteristics
54ACT
VCC
TA = −55˚C
to +125˚C
CL = 50 pF
Fig.
No.
Symbol
Parameter
(V)
Units
(Note 7)
Min
Max
tPLH
tPHL
tPLH
tPHL
Propagation Delay
An or Bn to OA = B
Propagation Delay
An or Bn to OA = B
Propagation Delay
5.0
5.0
5.0
5.0
1.5
1.5
1.5
1.5
12.0
12.0
8.5
ns
ns
ns
ns
I
A = B to OA = B
Propagation Delay
A = B to OA = B
9.0
I
±
Note 7: Voltage Range 5.0 is 5.0V 0.5V
Capacitance
Symbol
Parameter
Input Capacitance
Power Dissipation Capacitance
Typ
4.5
40
Units
pF
Conditions
VCC = OPEN
VCC = 5.0V
CIN
CPD
pF
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6
Applications
Ripple Expansion
DS100234-6
Parallel Expansion
DS100234-7
7
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Physical Dimensions inches (millimeters) unless otherwise noted
20 Terminal Ceramic Leadless Chip Carrier (L)
NS Package Number E20A
20 Lead Ceramic Dual-In-Line Package (D)
NS Package Number J20A
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8
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
20 Lead Ceramic Flatpak (F)
NS Package Number W20A
LIFE SUPPORT POLICY
NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL
COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant
into the body, or (b) support or sustain life, and
whose failure to perform when properly used in
accordance with instructions for use provided in the
labeling, can be reasonably expected to result in a
significant injury to the user.
2. A critical component is any component of a life
support device or system whose failure to perform
can be reasonably expected to cause the failure of
the life support device or system, or to affect its
safety or effectiveness.
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Corporation
Americas
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Response Group
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National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.
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