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

  • Manufacturer Part Number:

    87946AYI-147LFT

  • 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

  • ECCN Code:

    EAR99

  • 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:

    TR

  • 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:

    TIN

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.8 mm

  • Terminal Position:

    QUAD

  • Width:

    7 mm

  • fmax-Min:

    250 MHz

87946AYI-147LFT Frequently Asked Questions (FAQs)

  • Renesas provides a recommended PCB layout guide for the 87946AYI-147LFT, which includes guidelines for thermal vias, copper pours, and component placement to ensure optimal thermal performance. Contact Renesas support for the layout guide.
  • Renesas recommends a specific power sequencing scheme to ensure proper device operation. The recommended sequence is: VCC, VDD, AVCC, and finally, VREF. A detailed application note is available from Renesas support.
  • The maximum allowed voltage on the I/O pins is VCC + 0.5V, but not to exceed 4.6V. Exceeding this voltage may cause damage to the device.
  • Renesas recommends implementing ESD protection measures, such as using ESD diodes or TVS diodes, to protect the device from electrostatic discharge. A detailed application note is available from Renesas support.
  • The recommended operating temperature range for the 87946AYI-147LFT is -40°C to +125°C. However, the device can operate up to +150°C for short periods during soldering or reflow processes.

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87946AYI-147LFT Overview

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