Part Image

SN74LS641DW - Texas Instruments

Description: Texas Instruments SN74LS641DW, Bus Transceiver, 8-Bit Non-Inverting TTL, 4.75 → 5.25 V, 20-Pin SOIC

Download SN74LS641DW 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
SN74LS641DW - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DW0020A
click to zoom
3D Models
SN74LS641DW - Texas Instruments  - 3D model - Small Outline Packages - DW0020A
click to zoom

SN74LS641DW Details

  • Manufacturer Part Number:

    SN74LS641DW

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Pin Count:

    20

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Additional Feature:

    WITH DIRECTION CONTROL

  • Control Type:

    COMMON CONTROL

  • Count Direction:

    BIDIRECTIONAL

  • Family:

    LS

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e4

  • Length:

    12.8 mm

  • Load Capacitance (CL):

    45 pF

  • Logic IC Type:

    BUS TRANSCEIVER

  • Max I(ol):

    0.024 A

  • Moisture Sensitivity Level:

    1

  • Number of Bits:

    8

  • Number of Functions:

    8

  • Number of Ports:

    2

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    70 °C

  • Output Characteristics:

    OPEN-COLLECTOR

  • Output Polarity:

    TRUE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP20,.4

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TUBE

  • Peak Reflow Temperature (Cel):

    260

  • Power Supply Current-Max (ICC):

    90 mA

  • Prop. Delay@Nom-Sup:

    25 ns

  • Propagation Delay (tpd):

    25 ns

  • Qualification Status:

    Not Qualified

  • Schmitt Trigger:

    NO

  • Seated Height-Max:

    2.65 mm

  • Supply Voltage-Max (Vsup):

    5.25 V

  • Supply Voltage-Min (Vsup):

    4.75 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

SN74LS641DW Frequently Asked Questions (FAQs)

  • The maximum operating frequency of the SN74LS641DW is 30 MHz, but it can vary depending on the load capacitance and the output current.
  • To ensure reliable operation in high-temperature environments, it is recommended to operate the device within the recommended operating temperature range of -40°C to 85°C, and to follow proper thermal management practices such as providing adequate heat sinking and airflow.
  • The recommended power-on sequence for the SN74LS641DW is to apply power to the VCC pin before applying any input signals, and to ensure that the input signals are stable before applying the clock signal.
  • To handle bus contention when using the SN74LS641DW as a bus transceiver, it is recommended to use a bus arbiter or a bus controller to manage access to the bus, and to ensure that only one device is driving the bus at a time.
  • The maximum output current of the SN74LS641DW is 15 mA per output pin, but it can be limited by the total device power dissipation and the output voltage.

Trust Checks

This model has been verified by system checks.
System Verified
Sponsored

SN74LS641DW Overview

Use the download button to access the SN74LS641DW schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like SN74L, or try a keyword search, such as Bus Driver/Transceivers

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 SN74LS641DW

Showing 0 results

SN74LS641DW Alternates

Showing results

Image Part Number Model
Part Image SN74ALS641ADW Texas Instruments

Bus Transceiver, ALS Series, 8-Func, 8-Bit, True Output, TTL, PDSO20

Part Image SN74LS641NDS Freescale Semiconductor

IC,BUS TRANSCEIVER,SINGLE,8-BIT,LS-TTL,DIP,20PIN,PLASTIC

Part Image SN74LS621JS Freescale Semiconductor

IC,BUS TRANSCEIVER,SINGLE,8-BIT,LS-TTL,DIP,20PIN,CERAMIC

Part Image SN74LS641JDS Freescale Semiconductor

IC,BUS TRANSCEIVER,SINGLE,8-BIT,LS-TTL,DIP,20PIN,CERAMIC

Part Image SN74ALS641A-1DWRE4 Texas Instruments

Bus Transceiver, ALS Series, 1-Func, 8-Bit, True Output, TTL, PDSO20

For a full list of alternate parts for SN74LS641DW, check out Findchips.com