Datasheet 5962-9091601MSA, 5962-9091601MRA, 5962-9091601M2A, 5962-9091601BSA Datasheet (NSC)
Page 1
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 I
A=B
also serves asanactive LOW enable in-
put.
Features
n Compares two 8-bit words in 6.5 ns typ
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
Logic Symbols
Pin Names Description
A
0–A7
Word A Inputs
B
0–B7
Word B Inputs
T
A=B
Expansion or Enable Input
O
A=B
Identity Output
FACT™is a trademark of Fairchild Semiconductor Corporation.
DS100234-1
IEEE/IEC
DS100234-4
September 1998
54AC520
•
54ACT520 8-Bit Identity Comparator
© 1998 National Semiconductor Corporation DS100234 www.national.com
Page 2
Connection Diagrams
Truth Table
Inputs Outputs
I
A=B
A, B O
A=B
LA
=
B
*
L
LA
≠
BH
HA
=
B
*
H
HA
≠
BH
H
=
HIGH Voltage Level
L=LOW Voltage Level
*
A
0
=
B
0,A1
=
B
1,A2
=
B
2
, etc.
Pin Assignment
for DIP and Flatpak
DS100234-2
Pin Assignment
for LCC
DS100234-3
www.national.com 2
Page 3
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.
www.national.com3
Page 4
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage (V
CC
) −0.5V to +7.0V
DC Input Diode Current (I
IK
)
V
I
=
−0.5V −20 mA
V
I
=
V
CC
+ 0.5V +20 mA
DC Input Voltage (V
I
) −0.5V to VCC+ 0.5V
DC Output Diode Current (I
OK
)
V
O
=
−0.5V −20 mA
V
O
=
V
CC
+ 0.5V +20 mA
DC Output Voltage (V
O
) −0.5V to VCC+ 0.5V
DC Output Source
or Sink Current (I
O
)
±
50 mA
DC V
CC
or Ground Current
per Output Pin (I
CC
or I
GND
)
±
50 mA
Storage Temperature (T
STG
) −65˚C to +150˚C
Junction Temperature (T
J
)
CDIP 175˚C
Recommended Operating
Conditions
Supply Voltage (VCC)
’AC 2.0V to 6.0V
’ACT 4.5V to 5.5V
Input Voltage (V
I
) 0VtoV
CC
Output Voltage (VO) 0VtoV
CC
Operating Temperature (TA)
54AC/ACT −55˚C to +125˚C
Minimum Input Edge Rate (∆V/∆t)
’AC Devices
V
IN
from 30%to 70%of V
CC
V
CC
@
3.3V, 4.5V, 5.5V 125 mV/ns
Minimum Input Edge Rate (∆V/∆t)
’ACT Devices
V
IN
from 0.8V to 2.0V
V
CC
@
4.5V, 5.5V 125 mV/ns
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 recommend operation of FACT
™
circuits outside databook specifications.
DC Characteristics for ’AC Family Devices
54AC
Symbol Parameter V
CC
T
A
=
Units Conditions
(V) −55˚C to +125˚C
Guaranteed Limits
V
IH
Minimum High Level 3.0 2.1 V
OUT
=
0.1V
Input Voltage 4.5 3.15 V or V
CC
− 0.1V
5.5 3.85
V
IL
Maximum Low Level 3.0 0.9 V
OUT
=
0.1V
Input Voltage 4.5 1.35 V or V
CC
− 0.1V
5.5 1.65
V
OH
Minimum High Level 3.0 2.9 I
OUT
=
−50 µA
Output Voltage 4.5 4.4 V
5.5 5.4
(Note 2)
V
IN
=
V
IL
or V
IH
3.0 2.4 IOH= −12 mA
4.5 3.7 V I
OH
= −24 mA
5.5 4.7 I
OH
= −24 mA
V
OL
Maximum Low Level 3.0 0.1 I
OUT
=
50 µA
Output Voltage 4.5 0.1 V
5.5 0.1
(Note 2)
V
IN
=
V
IL
or V
IH
3.0 0.50 IOL=12mA
4.5 0.50 V I
OL
=24mA
5.5 0.50 I
OL
=24mA
I
IN
Maximum Input 5.5
±
1.0 µA V
I
=
V
CC
, GND
Leakage Current A Inputs Only
I
IH
Maximum Input 5.5 20.0 µA V
I
=
V
CC
High Leakage Current B Inputs Only
www.national.com 4
Page 5
DC Characteristics for ’AC Family Devices (Continued)
54AC
Symbol Parameter V
CC
T
A
=
Units Conditions
(V) −55˚C to +125˚C
Guaranteed Limits
I
IL
Maximum Input 5.5 −1.5 mA V
I
=
V
CC
Low Leakage Current B Inputs Only
I
OLD
Minimum Dynamic
(Note 3)
5.5 50 mA V
OLD
=
1.65V Max
I
OHD
Output Current 5.5 −50 mA V
OHD
=
3.85V Min
I
CC
Maximum Quiescent 5.5 80.0 µA V
IN
=
V
CC
Supply Current
I
CC
Maximum Quiescent 5.5 8.0 mA V
IN
=
GND
Supply Current
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 V
CC
T
A
=
Units Conditions
(V) −55˚C to +125˚C
Guaranteed Limits
V
IH
Minimum High Level 4.5 2.0 V V
OUT
=
0.1V
Input Voltage 5.5 2.0 or V
CC
− 0.1V
V
IL
Maximum Low Level 4.5 0.8 V V
OUT
=
0.1V
Input Voltage 5.5 0.8 or V
CC
− 0.1V
V
OH
Minimum High Level 4.5 4.4 V I
OUT
=
−50 µA
Output Voltage 5.5 5.4
(Note 4)
V
IN
=
V
IL
or V
IH
4.5 3.70 V IOH= −24 mA
5.5 4.70 I
OH
= −24 mA
V
OL
Maximum Low Level 4.5 0.1 V I
OUT
=
50 µA
Output Voltage 5.5 0.1
(Note 4)
V
IN
=
V
IL
or V
IH
4.5 0.50 V IOL=24mA
5.5 0.50 I
OL
=24mA
I
IN
Maximum Input 5.5
±
1.0 µA V
I
=
V
CC
, GND
Leakage Current
I
IH
Maximum Input 5.5 10.0 µA V
I
=
V
CC
High Leakage Current B Inputs Only
I
IL
Maximum Input 5.5 −1.0 mA V
I
=
V
CC
Low Leakage Current B Inputs Only
I
CCT
Maximum 5.5 1.6 mA V
I
=
V
CC
− 2.1V
I
CC
/Input
I
OLD
Minimum Dynamic
(Note 5)
5.5 50 mA V
OLD
=
1.65V Max
I
OHD
Output Current 5.5 −50 mA V
OHD
=
3.85V Min
I
CC
Maximum Quiescent 5.5 80.0 µA V
IN
=
V
CC
Supply Current or GND
www.national.com5
Page 6
DC Characteristics for ’ACT Family Devices (Continued)
54ACT
Symbol Parameter V
CC
T
A
=
Units Conditions
(V) −55˚C to +125˚C
Guaranteed Limits
I
CC
Maximum Quiescent 5.5 8.0 mA V
IN
=
GND
Supply Current
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
V
CC
T
A
=
−55˚C Fig.
Symbol Parameter (V) to +125˚C Units No.
(Note 6) C
L
=
50 pF
Min Max
t
PLH
Propagation Delay 3.3 1.0 14.0 ns
A
n
or Bnto O
A=B
5.0 1.5 10.5
t
PHL
Propagation Delay 3.3 1.0 15.0 ns
A
n
or Bnto O
A=B
5.0 1.5 11.0
t
PLH
Propagation Delay 3.3 1.0 10.0 ns
I
A=B
to O
A=B
5.0 1.5 7.5
t
PHL
Propagation Delay 3.3 1.0 10.5 ns
I
A=B
to O
A=B
5.0 1.5 8.0
Note 6: Voltage Range 3.3 is 3.3V±0.3V
Voltage Range 5.0 is 5.0V
±
0.5V
AC Electrical Characteristics
54ACT
V
CC
T
A
=
−55˚C Fig.
Symbol Parameter (V) to +125˚C Units No.
(Note 7) C
L
=
50 pF
Min Max
t
PLH
Propagation Delay 5.0 1.5 12.0 ns
A
n
or Bnto O
A=B
t
PHL
Propagation Delay 5.0 1.5 12.0 ns
A
n
or Bnto O
A=B
t
PLH
Propagation Delay 5.0 1.5 8.5 ns
I
A=B
to O
A=B
t
PHL
Propagation Delay 5.0 1.5 9.0 ns
I
A=B
to O
A=B
Note 7: Voltage Range 5.0 is 5.0V±0.5V
Capacitance
Symbol Parameter Typ Units Conditions
C
IN
Input Capacitance 4.5 pF V
CC
=
OPEN
C
PD
Power Dissipation Capacitance 40 pF V
CC
=
5.0V
www.national.com 6
Page 7
Applications
Ripple Expansion
DS100234-6
Parallel Expansion
DS100234-7
www.national.com7
Page 8
8
Page 9
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
www.national.com9
Page 10
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
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 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 in 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.
National Semiconductor
Corporation
Americas
Tel: 1-800-272-9959
Fax: 1-800-737-7018
Email: [email protected]
www.national.com
National Semiconductor
Europe
Fax: +49 (0) 1 80-530 85 86
Email: [email protected]
Deutsch Tel: +49 (0) 1 80-530 85 85
English Tel: +49 (0) 1 80-532 78 32
Français Tel: +49 (0) 1 80-532 93 58
Italiano Tel: +49 (0) 1 80-534 16 80
National Semiconductor
Asia Pacific Customer
Response Group
Tel: 65-2544466
Fax: 65-2504466
Email: [email protected]
National Semiconductor
Japan Ltd.
Tel: 81-3-5620-6175
Fax: 81-3-5620-6179
20 Lead Ceramic Flatpak (F)
NS Package Number W20A
54AC520
•
54ACT520 8-Bit Identity Comparator
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.
Loading...