Details, datasheet, quote on part number: SN74ALS273N
CategorySemiconductors => Logic => Flip-Flop/Latch/Register => D-Type Flip-Flop
Part familySN74ALS273 Octal D-Type Positive-Edge-Triggered Flip-Flops With Clear
TitleD-Type Flip-Flops
DescriptionOctal D-Type Positive-Edge-Triggered Flip-Flops With Clear 20-PDIP 0 to 70
CompanyTexas Instruments, Inc.
DatasheetDownload SN74ALS273N datasheet
Cross ref.Similar parts: DM74ALS273N, N74ALS273N, DV74ALS273N
Find where to buy
Operating Temperature Range(C)0 to 70
3-State OutputNo
Technology FamilyALS
F @ Nom Voltage(Max)(Mhz)70
Schmitt TriggerNo
Output Drive (IOL/IOH)(Max)(mA)24/-2.6
Package GroupPDIP,SO,SOIC
ICC @ Nom Voltage(Max)(mA)29
Approx. Price (US$)0.42 | 1ku
tpd @ Nom Voltage(Max)(ns)15
  Mecanical Data
Pin nbPackage typeInd stdJEDEC codePackage qtyCarrierDevice markWidth (mm)Length (mm)Thick (mm)Pitch (mm)
20NPDIPR-PDIP-T20TUBESN74ALS273N 6.3524.334.572.54
Application notes
• 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


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


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.


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.


Related products with the same datasheet
Some Part number from the same manufacture Texas Instruments, Inc.
SN74ALS273N3 ti SN74ALS273, Octal D-type Positive-edge-triggered Flip-flops With Clear
SN74ALS27A Triple 3-input NOR GATE
SN74ALS27AD ti SN74ALS27A, Triple 3-Input Positive NOR GATEs
SN74ALS27D ti SN74ALS27, Triple 3-Input Positive NOR GATEs
SN74ALS280 9-bit Odd/even Parity Generator/checker
SN74ALS280D ti SN74ALS280, 9-Bit Odd/even Parity Generators/checkers
SN74ALS28A Quadruple 2-input Positive-nor Buffers
SN74ALS29818 8-bit Diagnostics/high-speed 8-bit Parallel Pipeline Register
SN74ALS29818DW ti SN74ALS29818, 8-Bit Diagnostics/pipeline Registers
SN74ALS29821 10-bit Bus-interface Flip-flop With 3-state Outputs
SN74ALS29821DW ti SN74ALS29821, 10-bit Bus Interface Flip-flops With 3-State Outputs
SN74ALS29823 9-bit Bus-interface Flip-flop With 3-state Outputs
SN74ALS29823DW ti SN74ALS29823, 9-Bit Bus Interface Flip-flops With 3-State Outputs
SN74ALS29825 8-bit Bus Interface Flip-flop With 3-state Output
SN74ALS29825DW ti SN74ALS29825, 8-Bit Bus Interface Flip-flops With 3-State Outputs
SN74ALS29826 8-bit Bus Interface Flip-flop With 3-state Output
SN74ALS29827 10-bit Buffer And Bus Driver With 3-state Outputs
SN74ALS29827DW ti SN74ALS29827, 10-Bit Buffers/drivers With 3-State Outputs

SN74ALVCH245 : Bus Oriented Circuits Octal Bus Transceiver With 3-state Outputs

SN74HC368NSR : Inverting Buffers and Drivers ti SN74HC368, Hex Inverting Buffers And Line Drivers With 3-State Outputs

SN74HCT240PWT : Inverting Buffers and Drivers ti SN74HCT240, Octal Buffers And Line Drivers With 3-State Outputs

SN74LVCHR162245ADGGR : Standard Transceivers ti SN74LVCHR162245A, 16-Bit Bus Transceiver With 3-State Outputs

TLE2071AIDR : ti TLE2071A, Excalibur Low-noise High-speed JFET-input Operational Amplifier

UC1707J/80900 : MOSFET and Power Drivers ti UC1707, Complementary High Speed Power Drivers

TS3L500AERHURG4 : 16-Bit To 8-Bit SPDT Gigabit LAN Switch With LED Switch And Enhanced ESD Protect The TS3L500AE is a 16-bit to 8-bit multiplexer/demultiplexer LAN switch with a single select (SEL) input. SEL controls the data path of the multiplexer/demultiplexer. The device provides additional I/Os for switching s

SN74F157 : Quadruple 2-line TO 1-line DATA Selectors/multiplexers

7BT2F9A-364 : HIGH Capacity Environmentally Sealed

LMP91002 : Onfigurable AFE For Low Power H2S And CO Sensing Applications The LMP91002 is a programmable Analog Front End (AFE) for use in micro-power electrochemical sensing applications. It provides a complete signal path solution between a not biased gas sensor and a microcontroller generating an output vol

AM26LV31INSRE4 : QUAD LINE DRIVER, PDSO16 Specifications: Technology: RS422, BICMOS ; Device Type: Line / Bus Driver ; Supply Voltage: 3.3V ; Operating Temperature: 0 to 70 C (32 to 158 F) ; Package Type: SOP, PLASTIC, SOP-16 ; Pins: 16 ; Features: RoHS

0-C     D-L     M-R     S-Z