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650R-21ILFT - Renesas Electronics

Description:  The ICS650-21 is a low cost, low-jitter, high-performance clock synthesizer for system peripheral applications. Using analog/digital Phase Locked Loop (PLL) techniques, the device accepts a parallel resonant 25 MHz crystal input to produce up to eight output clocks. The device provides clocks for PCI, SCSI, Fast Ethernet, Ethernet, USB, and AC97. The user can select one of three USB frequencies and also one of two AC97 audio frequencies. The OE pin puts all outputs into a high-impedance state for board lev

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650R-21ILFT - Renesas Electronics - PCB symbol
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650R-21ILFT - Renesas Electronics PCB footprint - Small Outline Packages - Small Outline Packages - (20-pin SSOP, 150 Mil. Wide Body)
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650R-21ILFT - Renesas Electronics - 3D model - Small Outline Packages - (20-pin SSOP, 150 Mil. Wide Body)
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650R-21ILFT Details

  • Manufacturer Part Number:

    650R-21ILFT

  • Brand Name:

    Renesas

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    QSOP

  • Package Description:

    SSOP-20

  • Pin Count:

    20

  • Manufacturer Package Code:

    PCG20

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Renesas Electronics Corporation

  • YTEOL:

    0

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e3

  • Length:

    8.65 mm

  • Moisture Sensitivity Level:

    1

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Clock Frequency-Max:

    100 MHz

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SSOP

  • Package Equivalence Code:

    SSOP20,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Primary Clock/Crystal Frequency-Nom:

    25 MHz

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max:

    30 mA

  • Supply Voltage-Max:

    5.5 V

  • Supply Voltage-Min:

    3 V

  • Supply Voltage-Nom:

    3.3 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Terminal Finish:

    TIN

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.635 mm

  • Terminal Position:

    DUAL

  • Width:

    3.9 mm

  • uPs/uCs/Peripheral ICs Type:

    CLOCK GENERATOR, PROCESSOR SPECIFIC

650R-21ILFT Frequently Asked Questions (FAQs)

  • Renesas provides a recommended PCB layout guide in their application note (APN) documents, which includes guidelines for thermal vias, copper pours, and component placement to ensure optimal thermal performance.
  • Renesas recommends using an external overcurrent protection circuit, such as a current sense resistor and a comparator, to detect overcurrent conditions. The datasheet provides guidelines for selecting the current sense resistor value and the comparator threshold.
  • Renesas recommends using a low-ESR ceramic capacitor with a value of 10uF to 22uF, depending on the input voltage and frequency, to ensure stable operation and minimize input ripple.
  • Renesas provides EMC guidelines in their application notes, including recommendations for PCB layout, component selection, and shielding to minimize electromagnetic interference (EMI) and ensure compliance with relevant standards.
  • The maximum allowed voltage drop across the internal voltage regulator is typically around 1.5V to 2V, depending on the input voltage and operating conditions. Exceeding this voltage drop may affect the device's performance and reliability.

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650R-21ILFT Overview

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