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QS3244QG8 - Renesas Electronics

Description: The QS3244 provides a set of eight high-speed CMOS TTL-compatible bus switches in a pinout compatible with 74FCT244, 74F244, 74ALS/AS/ LS244 8-bit drivers. The low ON resistance (5 ohm) of the 3244 allows inputs to be connected to outputs without adding propagation delay and without generating additional ground bounce noise. The QS3244 operates at -40C to +85C.

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QS3244QG8 - Renesas Electronics - PCB symbol
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PCB Footprints
QS3244QG8 - Renesas Electronics PCB footprint - Small Outline Packages - Small Outline Packages - PCG 20_
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QS3244QG8 - Renesas Electronics - 3D model - Small Outline Packages - PCG 20_
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QS3244QG8 Details

  • Manufacturer Part Number:

    QS3244QG8

  • Brand Name:

    Renesas

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    QSOP

  • Pin Count:

    20

  • Manufacturer Package Code:

    PCG20

  • Country Of Origin:

    Taiwan

  • HTS Code:

    8542.39.00.01

  • Factory Lead Time:

    12 Weeks

  • Manufacturer:

    Renesas Electronics Corporation

  • YTEOL:

    6

  • Family:

    CBT/FST/QS/5C/B

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e3

  • Length:

    8.6868 mm

  • Logic IC Type:

    BUS DRIVER

  • Moisture Sensitivity Level:

    1

  • Number of Bits:

    4

  • Number of Functions:

    2

  • Number of Ports:

    2

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Characteristics:

    3-STATE

  • Output Polarity:

    TRUE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SSOP

  • Package Equivalence Code:

    SSOP20,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, SHRINK PITCH

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Propagation Delay (tpd):

    0.25 ns

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.7272 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:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.635 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3.937 mm

QS3244QG8 Frequently Asked Questions (FAQs)

  • Renesas provides a recommended PCB layout guide in their application note (APN) documents, which includes thermal management guidelines. It's essential to follow these guidelines to ensure optimal thermal performance and prevent overheating.
  • The QS3244QG8 has an internal overcurrent protection feature, but it's recommended to add external overcurrent protection circuitry to ensure reliable operation. A sense resistor and a comparator can be used to detect overcurrent conditions and trigger a shutdown or warning signal.
  • The recommended input capacitor value and type depend on the specific application and operating conditions. A general guideline is to use a low-ESR ceramic capacitor with a value between 10uF to 22uF. However, it's essential to consult the datasheet and application notes for specific recommendations.
  • To ensure EMC compliance, follow the recommended PCB layout and design guidelines, use proper shielding and grounding techniques, and add EMI filters or chokes as necessary. Additionally, consult the datasheet and application notes for specific EMC-related recommendations.
  • The QS3244QG8 has an operating temperature range of -40°C to +125°C, but the maximum junction temperature (Tj) should not exceed 150°C. It's essential to ensure proper thermal management to prevent overheating and ensure reliable operation.

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QS3244QG8 Overview

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QS3244QG8 Alternates

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Part Image FST3244QSCX Fairchild Semiconductor Corporation

Bus Driver, CBT/FST/QS/5C/B Series, 2-Func, 4-Bit, True Output, CMOS, PDSO20
Part Image IDTQS3244QG Renesas Electronics Corporation

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Part Image IDTQS3244QG8 Renesas Electronics Corporation

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Part Image SN74CBT3244DBQ Texas Instruments

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Part Image PI5C3244QX Pericom Semiconductor Corporation

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For a full list of alternate parts for QS3244QG8, check out Findchips.com