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932S421BGLF - Renesas Electronics

Description: The IDT932S421 is a main clock synthesizer for CK410B+ generation Intel server platforms. The IDT932S421 is driven with a 14.318MHz crystal. It generates 4 CPU outputs up to 400MHz and 5 PCIe Gen2 PCI-Express clocks. The 48 MHz USB clock is an exact 48.000 MHz clock.

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932S421BGLF Details

  • Manufacturer Part Number:

    932S421BGLF

  • Brand Name:

    Renesas

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    TSSOP

  • Pin Count:

    56

  • Manufacturer Package Code:

    PAG56

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Renesas Electronics Corporation

  • YTEOL:

    0

  • JESD-30 Code:

    R-PDSO-G56

  • JESD-609 Code:

    e3

  • Length:

    14 mm

  • Moisture Sensitivity Level:

    1

  • Number of Terminals:

    56

  • Operating Temperature-Max:

    70 °C

  • Output Clock Frequency-Max:

    333.33 MHz

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Equivalence Code:

    TSSOP56,.3,20

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Primary Clock/Crystal Frequency-Nom:

    14.318 MHz

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.2 mm

  • Supply Current-Max:

    350 mA

  • Supply Voltage-Max:

    3.465 V

  • Supply Voltage-Min:

    3.135 V

  • Supply Voltage-Nom:

    3.3 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    MATTE TIN

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    6.1 mm

  • uPs/uCs/Peripheral ICs Type:

    CLOCK GENERATOR, PROCESSOR SPECIFIC

932S421BGLF Frequently Asked Questions (FAQs)

  • Renesas provides a recommended PCB layout guide in their application note (APL-AN-1201) for thermal optimization. It suggests using a 4-layer PCB with a solid ground plane, placing thermal vias under the package, and using a heat sink with a thermal interface material.
  • Renesas recommends a specific power sequencing scheme to ensure proper device operation. The VCC pin should be powered up first, followed by the VDD pin, and then the other power pins. A detailed power sequencing diagram is available in the datasheet.
  • Renesas recommends using EMI filters and ESD protection devices on the input and output lines to ensure electromagnetic compatibility and electrostatic discharge protection. Additionally, a shielded enclosure and proper PCB layout can help reduce EMI emissions.
  • Renesas provides a troubleshooting guide in their application note (APL-AN-1202) for issues related to the internal oscillator. It suggests checking the oscillator circuit, clock frequency, and power supply voltage, as well as using an external oscillator as a backup option.
  • Renesas provides thermal derating guidelines in the datasheet, which recommend reducing the maximum junction temperature (Tj) by 1°C for every 1W of power dissipation above 1W. This ensures reliable device operation and prevents thermal shutdown.

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932S421BGLF Overview

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