TI SN74F520DW

SN54F520, SN74F520
8-BIT IDENTITY COMPARATORS
SDFS081A – MARCH 1987 – REVISED OCTOBER 1993
SN54F520 . . . J PACKAGE
SN74F520 . . . DW OR N PACKAGE
(TOP VIEW)
Compares Two 8-Bit Words
20-kΩ Pullup Resistors on Q Inputs
Package Options Include Plastic
Small-Outline Packages, Ceramic Chip
Carriers, and Standard Plastic and Ceramic
300-mil DIPs
OE
P0
Q0
P1
Q1
P2
Q2
P3
Q3
GND
description
These identity comparators perform comparisons
on two 8-bit binary or BCD words. They provide
P = Q outputs. The ′F520 features 20-kΩ pullup
termination resistors on the Q inputs for analog or
switch data.
The SN54F520 is characterized for operation over
the full military temperature range of – 55°C to
125°C. The SN74F520 is characterized for
operation from 0°C to 70°C.
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
VCC
P=Q
Q7
P7
Q6
P6
Q5
P5
Q4
P4
Q0
P0
OE
VCC
SN54F520 . . . FK PACKAGE
(TOP VIEW)
P=Q
•
•
•
FUNCTION TABLE
INPUTS
P, Q
OE
OUTPUT
P=Q
P=Q
L
L
P≠Q
X
H
X
H
H
P1
Q1
P2
Q2
P3
3 2 1 20 19
18
5
17
6
16
7
15
8
14
9 10 11 12 13
Q7
P7
Q6
P6
Q5
Q3
GND
P4
Q4
P5
logic symbol†
4
COMP
1
OE
P0
P1
P2
P3
P4
P5
P6
P7
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
2
0
4
6
8
11
P
13
15
17
3
7
1P = Q
0
19
P=Q
5
7
9
12
Q
14
16
18
7
† This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Copyright  1993, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
2–1
SN54F520, SN74F520
8-BIT IDENTITY COMPARATORS
SDFS081A – MARCH 1987 – REVISED OCTOBER 1993
logic diagram (positive logic)
P7
Q7
P6
Q6
P5
Q5
P4
Q4
17
18
15
16
13
14
11
12
19
P3
Q3
P2
Q2
P1
Q1
P0
Q0
OE
8
9
6
7
4
5
2
3
1
NOTE: 20-kΩ pullup resistors are on the Q inputs.
2–2
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
P=Q
SN54F520, SN74F520
8-BIT IDENTITY COMPARATORS
SDFS081A – MARCH 1987 – REVISED OCTOBER 1993
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to 7 V
Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 1.2 V to 7 V
Input current range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 30 mA to 5 mA
Voltage range applied to any output in the high state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to VCC
Current into any output in the low state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 mA
Operating free-air temperature range: SN54F520 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 55°C to 125°C
SN74F520 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: The input voltage ratings may be exceeded provided the input current ratings are observed.
recommended operating conditions
SN54F520
VCC
VIH
Supply voltage
VIL
IIK
Low-level input voltage
IOH
IOL
High-level output current
Low-level output current
TA
Operating free-air temperature
High-level input voltage
SN74F520
MIN
NOM
MAX
MIN
NOM
MAX
4.5
5
5.5
4.5
5
5.5
2
2
Input clamp current
– 55
UNIT
V
V
0.8
0.8
V
– 18
– 18
mA
–1
–1
mA
20
20
mA
70
°C
125
0
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
VIK
VOH
VOL
II
IIH
IIL
OE and P inputs
Q inputs
OE and P inputs
Q inputs
OE and P inputs
Q inputs
TEST CONDITIONS
VCC = 4.5 V,
VCC = 4.5 V,
II = – 18 mA
IOH = – 1 mA
VCC = 4.75 V,
VCC = 4.5 V,
IOH = – 1 mA
IOL = 20 mA
VCC = 5
5.5
5V
VI = 7 V
VI = 5.5 V
VCC = 5
5.5
5V
V,
VI = 2
2.7
7V
VCC = 5
5.5
5V
V,
VI = 0
0.5
5V
SN54F520
TYP‡
MAX
MIN
SN74F520
TYP‡
MAX
MIN
– 1.2
2.5
3.4
– 1.2
2.5
3.4
0.5
0.3
• DALLAS, TEXAS 75265
0.5
0.1
0.1
0.1
0.1
V
mA
20
20
µA
– 0.3
– 0.3
mA
– 0.6
– 0.6
–1
–1
IOS§
VCC = 5.5 V,
VO = 0
– 60
– 150
– 60
ICC
VCC = 5.5 V,
See Note 2
21
32
21
‡ All typical values are at VCC = 5 V, TA = 25°C.
§ Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second.
NOTE 2: ICC is measured with all inputs at 4.5 V.
POST OFFICE BOX 655303
V
V
2.7
0.3
UNIT
mA
– 150
mA
32
mA
2–3
SN54F520, SN74F520
8-BIT IDENTITY COMPARATORS
SDFS081A – MARCH 1987 – REVISED OCTOBER 1993
switching characteristics (see Note 3)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 5 V,
CL = 50 pF,
RL = 500 Ω,
TA = 25°C
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
RL = 500 Ω,
TA = MIN to MAX†
′F520
tPLH
tPHL
P or Q
P=Q
tPLH
tPHL
OE
P=Q
SN54F520
SN74F520
MIN
TYP
MAX
MIN
MAX
MIN
3.9
5.7
7.7
3.7
10.2
3.7
8.7
4.7
7
9.3
4.4
11.3
4.4
10.3
3.5
4.6
5.8
3.4
7
3.4
6.4
5.2
7.5
9.5
4.9
11.2
4.9
10.4
† For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
NOTE 3: Load circuits and waveforms are shown in Section 1.
2–4
POST OFFICE BOX 655303
UNIT
• DALLAS, TEXAS 75265
MAX
ns
ns
IMPORTANT NOTICE
Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue
any product or service without notice, and advise customers to obtain the latest version of relevant information
to verify, before placing orders, that information being relied on is current and complete. All products are sold
subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those
pertaining to warranty, patent infringement, and limitation of liability.
TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily
performed, except those mandated by government requirements.
CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF
DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL
APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR
WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER
CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO
BE FULLY AT THE CUSTOMER’S RISK.
In order to minimize risks associated with the customer’s applications, adequate design and operating
safeguards must be provided by the customer to minimize inherent or procedural hazards.
TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent
that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other
intellectual property right of TI covering or relating to any combination, machine, or process in which such
semiconductor products or services might be or are used. TI’s publication of information regarding any third
party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.
Copyright  1998, Texas Instruments Incorporated