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621NLFT - Renesas Electronics

Description: The 621 is a low skew, single input to four output, clock buffer. The device operates from a single 1.2 to 1.8 volt supply and has a 3.3 volt tolerant input, making it ideal for level translation. IDT makes many non-PLL and PLL based low skew output devices as well as Zero Delay Buffers to synchronize clocks. Contact us for all of your clocking needs.

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Symbol
621NLFT - Renesas Electronics - PCB symbol
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PCB Footprints
621NLFT - Renesas Electronics PCB footprint - Small Outline No-lead - Small Outline No-lead - (8-pin DFN 2x2mm, 0.5mm pitch)
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621NLFT - Renesas Electronics - 3D model - Small Outline No-lead - (8-pin DFN 2x2mm, 0.5mm pitch)
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621NLFT Details

  • Manufacturer Part Number:

    621NLFT

  • Brand Name:

    Renesas

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    VFQFPN

  • Package Description:

    DFN-8

  • Pin Count:

    8

  • Manufacturer Package Code:

    NBG8P1

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Renesas Electronics Corporation

  • YTEOL:

    0

  • Family:

    621

  • Input Conditioning:

    STANDARD

  • JESD-30 Code:

    S-XDSO-N8

  • JESD-609 Code:

    e3

  • Length:

    2 mm

  • Logic IC Type:

    LOW SKEW CLOCK DRIVER

  • Max I(ol):

    0.008 A

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Number of True Outputs:

    4

  • Operating Temperature-Max:

    70 °C

  • Package Body Material:

    UNSPECIFIED

  • Package Code:

    HVSON

  • Package Equivalence Code:

    SOLCC8,.08,20

  • Package Shape:

    SQUARE

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Prop. Delay@Nom-Sup:

    5 ns

  • Propagation Delay (tpd):

    5 ns

  • Same Edge Skew-Max (tskwd):

    0.15 ns

  • Seated Height-Max:

    1 mm

  • Supply Voltage-Max (Vsup):

    1.89 V

  • Supply Voltage-Min (Vsup):

    1.14 V

  • Supply Voltage-Nom (Vsup):

    1.2 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Terminal Finish:

    Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    DUAL

  • Width:

    2 mm

621NLFT Frequently Asked Questions (FAQs)

  • Renesas provides a recommended PCB layout guide in their application note (R01AN2732EU0100) which includes thermal vias, thermal pads, and heat sink recommendations 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 621NLFT also has a built-in overcurrent detection feature, but it's not enabled by default and requires external resistors to set the detection threshold.
  • According to Renesas, the maximum allowed voltage on the VCC pin during power-up and power-down sequences is 7V. Exceeding this voltage may cause damage to the device.
  • Renesas provides EMC design guidelines in their application note (R01AN2732EU0100) which include recommendations for PCB layout, component selection, and shielding to minimize electromagnetic interference.
  • The recommended operating temperature range for the 621NLFT is -40°C to 125°C. However, the device can operate up to 150°C with derating. It's essential to follow the thermal design guidelines to ensure reliable operation within the specified temperature range.

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621NLFT Overview

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