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87946AYI-147LF - Renesas Electronics

Description: The 87946I-147 is a low skew, ÷1, ÷2 LVCMOS/LVTTL Fanout Buffer. The 87946I-147 has two selectable single-ended clock inputs. The single-ended clock inputs accept LVCMOS or LVTTL input levels. The low impedance LVCMOS/LVTTL outputs are designed to drive 50Ω series or parallel terminated transmission lines. The effective fanout can be increased from 10 to 20 by utilizing the ability of the outputs to drive two series terminated lines.The divide select inputs, DIV_SELx, control the output frequency of each ba

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87946AYI-147LF - Renesas Electronics PCB footprint - Quad Flat Packages - Quad Flat Packages - PRG32
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87946AYI-147LF - Renesas Electronics  - 3D model - Quad Flat Packages - PRG32
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87946AYI-147LF Details

  • Manufacturer Part Number:

    87946AYI-147LF

  • Brand Name:

    Renesas

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    TQFP

  • Package Description:

    LQFP-32

  • Pin Count:

    32

  • Manufacturer Package Code:

    PRG32

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Renesas Electronics Corporation

  • YTEOL:

    0

  • Additional Feature:

    ALSO OPERATES AT 3.135 TO 3.465 VDD SUPPLY

  • Family:

    87946

  • Input Conditioning:

    MUX

  • JESD-30 Code:

    S-PQFP-G32

  • JESD-609 Code:

    e3

  • Length:

    7 mm

  • Logic IC Type:

    LOW SKEW CLOCK DRIVER

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    32

  • Number of True Outputs:

    10

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Characteristics:

    3-STATE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    LQFP

  • Package Equivalence Code:

    QFP32,.35SQ,32

  • Package Shape:

    SQUARE

  • Package Style:

    FLATPACK, LOW PROFILE

  • Packing Method:

    TRAY

  • Peak Reflow Temperature (Cel):

    260

  • Power Supply Current-Max (ICC):

    55 mA

  • Prop. Delay@Nom-Sup:

    5 ns

  • Propagation Delay (tpd):

    5 ns

  • Same Edge Skew-Max (tskwd):

    0.175 ns

  • Seated Height-Max:

    1.6 mm

  • Supply Voltage-Max (Vsup):

    3.6 V

  • Supply Voltage-Min (Vsup):

    3 V

  • Supply Voltage-Nom (Vsup):

    3.3 V

  • Surface Mount:

    YES

  • Terminal Finish:

    MATTE TIN

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.8 mm

  • Terminal Position:

    QUAD

  • Width:

    7 mm

  • fmax-Min:

    250 MHz

87946AYI-147LF Frequently Asked Questions (FAQs)

  • Renesas provides a recommended PCB layout guide in their application note (APL-AN-1143) which includes thermal design considerations, such as thermal vias, copper pours, and component placement.
  • Renesas recommends following their thermal design guidelines, using a heat sink if necessary, and ensuring proper airflow around the device. Additionally, the device's thermal protection feature can be enabled to prevent overheating.
  • Renesas recommends using a low-ESR ceramic capacitor with a capacitance of 10uF to 22uF and a voltage rating of 25V or higher. The exact requirements may vary depending on the specific application and input voltage.
  • Check the PG pin's voltage level, ensure proper connection to the output capacitor, and verify that the input voltage is within the recommended range. Also, review the device's power-up sequence and ensure that the PG signal is not being pulled low by other components.
  • Renesas provides a rework guide (Renesas Rework Guide) that outlines the recommended soldering and rework procedures, including temperature profiles, soldering times, and handling precautions.

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87946AYI-147LF Overview

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