Details, datasheet, quote on part number: SN54ALS273
PartSN54ALS273
CategorySemiconductors => Space & High Reliability => Logic Products => Flip-Flop/Latch/Registers
Part familySN54ALS273 Octal D-type Flip-Flops With Clear
DescriptionOctal D-type Flip-Flops With Clear 20-LCCC -55 to 125
CompanyTexas Instruments, Inc.
StatusACTIVE
ROHSSee ti.com
SampleNo
DatasheetDownload SN54ALS273 datasheet
Cross ref.Similar parts: SN74LS793J, SN74LS793N, SN74LS273JD, SN74LS273JDS, SN74LS273JS, SN74LS273BJ, SN74LS273BJB, SN74LS273BJT, SN74LS273BJTB, SN74LS273BN
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Specifications 
3-State OutputNo
Output TypeTTL
Bits(#)8
Technology FamilyALS
RatingMilitary
Package GroupCDIP,CFP,LCCC
Output Drive (IOL/IOH)(Max)(mA)24/-2.6
ICC @ Nom Voltage(Max)(mA)29
Operating Temperature Range(C)-55 to 125
Input TypeTTL
VCC(Max)(V)5.5
tpd @ Nom Voltage(Max)(ns)15
F @ Nom Voltage(Max)(Mhz)75
VCC(Min)(V)4.5
  Mecanical Data
Pin nbPackage typeInd stdJEDEC codePackage qtyCarrierDevice markWidth (mm)Length (mm)Thick (mm)Pitch (mm)
20FKLCCCS-CQCC-N1TUBE84136012A 8.898.891.831.27
Application notes
• Input and Output Characteristics of Digital Integrated Circuits
This report contains a comprehensive collection of the input and output characteristic curves of typical integrated circuits from various logic families. These curves go beyond the information given in data sheets by providing additional details regarding | Doc
• Advanced Schottky (ALS and AS) Logic Families
This document introduces the advanced Schottky family of clamped TTL integrated circuits (ICs). Detailed electrical characteristics of the 'AS and 'ALS devices with table formats are provided. Guidelines for designing high-performance digital systems using | Doc
• Power-Up Behavior of Clocked Devices (Rev. A) | Doc
• Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A)
The spectrum of bus-interface devices with damping resistors or balanced/light output drive currently offered by various logic vendors is confusing at best. Inconsistencies in naming conventions and methods used for implementation make it difficult to iden | Doc
• Designing With Logic (Rev. C)
Data sheets, which usually give information on device behavior only under recommended operating conditions, may only partially answer engineering questions that arise during the development of systems using logic devices. However, information is frequently | Doc

 

Features, Applications

Contain Eight Flip-Flops With Single-Rail Outputs Buffered Clock and Direct-Clear Inputs Individual Data Input to Each Flip-Flop Applications Include: Buffer/Storage Registers Shift Registers Pattern Generators Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs

description

These octal positive-edge-triggered flip-flops utilize TTL circuitry to implement D-type flip-flop logic with a direct-clear (CLR) input. Information at the data (D) inputs meeting the setup-time requirements is transferred to the Q outputs on the positive-going edge of the clock (CLK) pulse. Clock triggering occurs at a particular voltage level and is not directly related to the transition time of the positive-going pulse. When CLK is at either the high or low level, the D input signal has no effect at the output. The SN54ALS273 is characterized for operation over the full military temperature range to 125C. The SN74ALS273 is characterized for operation from to 70C.

FUNCTION TABLE (each flip-flop) INPUTS CLR CLK H or OUTPUT SN54ALS273. FK PACKAGE (TOP VIEW)

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.

This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

Supply voltage, VCC. 7 V Input voltage, VI. 7 V Operating free-air temperature range, TA: to 70C Storage temperature range. to 150C

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.

SN54ALS273 MIN VCC VIH VIL IOH IOL fclock tw Supply voltage High-level input voltage Low-level input voltage High-level output current Low-level output current Clock frequency CLR low Pulse duration CLK high CLK low tsu th TA Set p time before CLK Setup Hold time, data after CLK Operating free-air temperature Data CLR inactive state C ns NOM 5 MAX 5.5 SN74ALS273 MIN NOM 5 MAX 5.5 UNIT V mA MHz

electrical characteristics over recommended operating free-air temperature range (unless otherwise noted)

mA All typical values are at VCC = 25C. The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS.


 

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