SN5485, SN54LS85, SN54S85
SN7485, SN74LS85, SN74S85
4-BIT MAGNITUDE COMPARATORS
SDLS123 – MARCH 1974 – REVISED MARCH 1988
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Copyright 1988, 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.
SN5485, SN54LS85, SN54S85
SN7485, SN74LS85, SN74S85
4-BIT MAGNITUDE COMPARATORS
SDLS123 – MARCH 1974 – REVISED MARCH 1988
2POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN5485, SN54LS85, SN54S85
SN7485, SN74LS85, SN74S85
4-BIT MAGNITUDE COMPARATORS
SDLS123 – MARCH 1974 – REVISED MARCH 1988
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN5485, SN54LS85, SN54S85
SN7485, SN74LS85, SN74S85
4-BIT MAGNITUDE COMPARATORS
SDLS123 – MARCH 1974 – REVISED MARCH 1988
4POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN5485, SN54LS85, SN54S85
SN7485, SN74LS85, SN74S85
4-BIT MAGNITUDE COMPARATORS
SDLS123 – MARCH 1974 – REVISED MARCH 1988
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN5485, SN54LS85, SN54S85
SN7485, SN74LS85, SN74S85
4-BIT MAGNITUDE COMPARATORS
SDLS123 – MARCH 1974 – REVISED MARCH 1988
6POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN5485, SN54LS85, SN54S85
SN7485, SN74LS85, SN74S85
4-BIT MAGNITUDE COMPARATORS
SDLS123 – MARCH 1974 – REVISED MARCH 1988
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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 APPLICA TIONS. 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 1999, Texas Instruments Incorporated
Texas Instruments
Advanced Search
TI Home
TI_ME
Employment
Tech Support
Comments
Site Map
TI Global
PRODUCT FOLDER | PRODUCT INFO: FEATURES | DESCRIPTION | DATASHEETS | PRICING/AVAILABILITY | APPLICATION NOTES |
RELATED DOCUMENTS
SN54S85, 4-Bit Magnitude Comparators
DEVICE STATUS: ACTIVE
PARAMETER NAME SN54S85
Voltage Nodes (V) 5
Vcc range (V) 4.5 to 5.5
Input Level TTL
Output Level TTL
No. of Bits 4
Logic True
P < Q YES
P = Q YES
P > Q YES
FEATURES
Back
to
Top
Back to Top
DESCRIPTION
Back
to
Top
Back to Top
These four-bit magnitude comparators perform comparison of straight binary and straight BCD (8-4-2-1)
codes. Three fully decoded decisions about two 4-bit words (A, B) are made and are externally available at
three outputs. These devices are fully expandable to any number of bits without external gates. Words of
greater length may be compared by connecting comparators in cascade. The A > B, A < B, and A = B
outputs of a stage handling less-significant bits are connected to the corresponding A > B, A < B, and A = B
inputs of the next stage handling more-significant bits. The stage handling the least-significant bits must
have a high-level voltage applied to the A = B input. The cascading paths of the '85, 'LS85, and 'S85 are
implemented with only a two-gate-level delay to reduce overall comparison times for long words. An
alternate method of cascading which further reduces the comparison time is shown in the typical application
data.
TECHNICAL DOCUMENTS
Back
to
Top
Back to Top
To view the following documents, Acrobat Reader 3.x is required.
To download a document to your hard drive, right-click on the link and choose 'Save'.
DATASHEET
Back
to
Top
Back to Top
Full datasheet in Acrobat PDF: sdls123.pdf (322 KB) (Updated: 03/01/1988)
Full datasheet in Zipped PostScript: sdls123.psz (625 KB)
APPLICATION NOTES
Back
Back to Top
Product Folder:SN54S85, 4-Bit Magnitude Comparators
file:////roarer/root/export/projects/bitting1/imagin...G/Avnet/20001221/11082000/TXII/11082000/sn54s85.html (1 of 2) [1/3/2001 9:46:12 AM]
All Semiconductors
to
Top
View Application Reports for Digital Logic
Designing With Logic (SDYA009C - Updated: 06/01/1997)●
Input And Output Characteristics Of Digital Integrated Circuits (SDYA010 - Updated: 10/01/1996)●
Live Insertion (SDYA012 - Updated: 10/01/1996)●
RELATED DOCUMENTS
Back
to
Top
Back to Top
Documentation Rules (SAP) And Ordering Information (SZZU001B, 4 KB - Updated: 05/06/1999)●
Logic Selection Guide Second Half 2000 (SDYU001N, 5035 KB - Updated: 04/17/2000)●
MicroStar Junior BGA Design Summary (SCET004, 167 KB - Updated: 07/28/2000)●
More Power In Less Space - Technical Article (SCAU001A, 850 KB - Updated: 03/01/1996)●
PRICING/AVAILABILITY
Back
to
Top
Back to Top
ORDERABLE DEVICE PACKAGE PINS TEMP
(ºC) STATUS
BUDGETARY
PRICE
US$/UNIT
QTY=1000+
PACK
QTY DSCC
NUMBER PRICING/AVAILABILITY
JM38510/08201BEA J16 -55 TO
125 ACTIVE 6.79 1 Check stock or order
SN54S85J J16 -55 TO
125 ACTIVE 2.93 500 Check stock or order
SNJ54S85FK FK 20 -55 TO
125 ACTIVE 10.37 1 Check stock or order
SNJ54S85J J16 -55 TO
125 ACTIVE 3.46 1 Check stock or order
SNJ54S85W W16 -55 TO
125 ACTIVE 7.15 150 Check stock or order
Table Data Updated on: 11/8/2000
© Copyright 2000 Texas Instruments Incorporated. All rights reserved. Trademarks | Privacy Policy | Important Notice
Product Folder:SN54S85, 4-Bit Magnitude Comparators
file:////roarer/root/export/projects/bitting1/imagin...G/Avnet/20001221/11082000/TXII/11082000/sn54s85.html (2 of 2) [1/3/2001 9:46:12 AM]
