Part Image

SN74ALS521DWR - Texas Instruments

Description: 8-Bit Identity/Magnitude Comparators (P=Q) with Enable

Download SN74ALS521DWR Model
Schematic
symbols
Schematic symbol is unavailable for download
PCB
footprints
PCB footprint is unavailable for download
3D
models
3D model is unavailable for download
PCB Footprints
SN74ALS521DWR - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DW0020A
click to zoom
3D Models
SN74ALS521DWR - Texas Instruments  - 3D model - Small Outline Packages - DW0020A
click to zoom

SN74ALS521DWR Details

  • Manufacturer Part Number:

    SN74ALS521DWR

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Pin Count:

    20

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Additional Feature:

    WITH PULL-UP RESISTORS ON Q INPUTS; CASCADABLE

  • Family:

    ALS

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e4

  • Length:

    12.8 mm

  • Load Capacitance (CL):

    50 pF

  • Logic IC Type:

    IDENTITY COMPARATOR

  • Max I(ol):

    0.024 A

  • Moisture Sensitivity Level:

    1

  • Number of Bits:

    8

  • Number of Functions:

    8

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    70 °C

  • Output Characteristics:

    3-STATE

  • Output Polarity:

    INVERTED

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP20,.4

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Power Supply Current-Max (ICC):

    19 mA

  • Prop. Delay@Nom-Sup:

    22 ns

  • Propagation Delay (tpd):

    20 ns

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    2.65 mm

  • Supply Voltage-Max (Vsup):

    5.5 V

  • Supply Voltage-Min (Vsup):

    4.5 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Technology:

    TTL

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    7.5 mm

SN74ALS521DWR Frequently Asked Questions (FAQs)

  • The recommended operating voltage range for the SN74ALS521DWR is 4.5V to 5.5V, with a typical operating voltage of 5V.
  • The SN74ALS521DWR has a maximum junction temperature of 150°C. To handle thermal considerations, ensure good airflow, use a heat sink if necessary, and avoid exceeding the maximum power dissipation of 1.5W.
  • The maximum clock frequency supported by the SN74ALS521DWR is 100 MHz.
  • To ensure signal integrity, use a low-impedance PCB design, keep signal traces short, and use termination resistors if necessary. Also, ensure that the input signals are within the recommended voltage levels and have a rise and fall time of less than 10 ns.
  • The SN74ALS521DWR is not directly compatible with 3.3V logic, as it is designed to operate at 5V. However, it can be used with 3.3V logic if level translators or voltage dividers are used to adjust the voltage levels.

Trust Checks

This model has been provided by community users.
Community Provided
This model has been verified by system checks.
System Verified
This model has been reviewed by community users.
Community Approved
Sponsored

SN74ALS521DWR Overview

Use the download button to access the SN74ALS521DWR schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like SN74A, or try a keyword search, such as Arithmetic Circuits

About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

Parts related to SN74ALS521DWR

Showing 0 results

SN74ALS521DWR Alternates

Showing results

Image Part Number Model
Part Image DM74ALS521WM Fairchild Semiconductor Corporation

Identity Comparator, ALS Series, 8-Bit, Inverted Output, TTL, PDSO20

Part Image DM74ALS521WMX_NL Fairchild Semiconductor Corporation

Identity Comparator, ALS Series, 8-Bit, Inverted Output, TTL, PDSO20

Part Image SN74ALS688DWRE4 Texas Instruments

Identity Comparator, ALS Series, 8-Bit, Inverted Output, TTL, PDSO20

Part Image SN74ALS521DWG4 Texas Instruments

Identity Comparator, ALS Series, 8-Bit, Inverted Output, TTL, PDSO20

Part Image SN74ALS688DW3 Texas Instruments

Identity Comparator, ALS Series, 8-Bit, Inverted Output, TTL, PDSO20

For a full list of alternate parts for SN74ALS521DWR, check out Findchips.com