54LS191J/B [ROCHESTER]
Decade Counter,;
| 型号： | 54LS191J/B |
| 厂家： | 
Rochester Electronics |
| 描述： | Decade Counter, |
| 文件： | 总15页 (文件大小：888K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
REI Datasheet
SN54190, SN54191, SN54LS190, SN54LS191
SN74190, SN74191, SN74LS190, SN74LS191
Synchronous Up/Down Counters with Down/Up Mode Control
The ‘190, ‘LS190, ‘191, and ‘LS191 are synchronous, reversible up/down counters having a
complexity of 58 equivalent gates. The ‘191 and ‘LS191 are 4-bit binary counters and the ‘190
and ‘LS190 are BCD counters. Synchronous operation is provided by having all flip-flops clocked
simultaneously so that the outputs change coincident with each other when so instructed by the
steering logic. This mode of operation eliminates the output counting spikes normally associated with
asynchronous (ripple clock) counters.
Quality Overview
Rochester Electronics
Manufactured Components
•
•
•
ISO-9001
AS9120 certification
Qualified Manufacturers List (QML) MIL-PRF-38535
Rochester branded components are
manufactured using either die/wafers
purchased from the original suppliers
or Rochester wafers recreated from the
original IP. All recreations are done with
the approval of the OCM.
•
•
Class Q Military
Class V Space Level
•
Qualified Suppliers List of Distributors (QSLD)
•
Rochester is a critical supplier to DLA and
meets all industry and DLA standards.
Parts are tested using original factory
test programs or Rochester developed
test solutions to guarantee product
meets or exceeds the OCM data sheet.
RochesterElectronics, LLCiscommittedtosupplying
products that satisfy customer expectations for
quality and are equal to those originally supplied by
industry manufacturers.
The original manufacturer’s datasheet accompanying this document reflects the performance
and specifications of the Rochester manufactured version of this device. Rochester Electronics
guarantees the performance of its semiconductor products to the original OEM specifications.
‘Typical’ values are for reference purposes only. Certain minimum or maximum ratings may be
based on product characterization, design, simulation, or sample testing.
© 2013 Rochester Electronics, LLC. All Rights Reserved 11252013
To learn more, please visit www.rocelec.com
SN54190, SN54191, SN54LS190, SN54LS191,
SN74190, SN74191, SN74LS190, SN74LS191
SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL
SDLS072 – DECEMBER 1972 – REVISED MARCH 1988
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.
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54190, SN54191, SN54LS190, SN54LS191,
SN74190, SN74191, SN74LS190, SN74LS191
SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL
SDLS072 – DECEMBER 1972 – REVISED MARCH 1988
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54190, SN54LS190, SN74190, SN74LS190
SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL
SDLS072 – DECEMBER 1972 – REVISED MARCH 1988
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54191, SN54LS191, SN74191, SN74LS191
SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL
SDLS072 – DECEMBER 1972 – REVISED MARCH 1988
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54190, SN54LS190, SN74190, SN74LS190
SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL
SDLS072 – DECEMBER 1972 – REVISED MARCH 1988
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54191, SN54LS191, SN74191, SN74LS191
SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL
SDLS072 – DECEMBER 1972 – REVISED MARCH 1988
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54190, SN54191, SN54LS190, SN54LS191,
SN74190, SN74191, SN74LS190, SN74LS191
SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL
SDLS072 – DECEMBER 1972 – REVISED MARCH 1988
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54190, SN54191, SN74190, SN74191
SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL
SDLS072 – DECEMBER 1972 – REVISED MARCH 1988
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54LS190, SN54LS191, SN74LS190, SN74LS191
SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL
SDLS072 – DECEMBER 1972 – REVISED MARCH 1988
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54LS190, SN54LS191, SN74LS190, SN74LS191
SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL
SDLS072 – DECEMBER 1972 – REVISED MARCH 1988
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54190, SN54191, SN54LS190, SN54LS191,
SN74190, SN74191, SN74LS190, SN74LS191
SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL
SDLS072 – DECEMBER 1972 – REVISED MARCH 1988
11
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54190, SN54191, SN54LS190, SN54LS191,
SN74190, SN74191, SN74LS190, SN74LS191
SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL
SDLS072 – DECEMBER 1972 – REVISED MARCH 1988
12
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54190, SN54191, SN54LS190, SN54LS191,
SN74190, SN74191, SN74LS190, SN74LS191
SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL
SDLS072 – DECEMBER 1972 – REVISED MARCH 1988
13
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
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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
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party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.
Copyright 1999, Texas Instruments Incorporated
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