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621

Obsolete

Low Skew 1 to 4 Clock Buffer

NOTICE - The following device(s) are recommended alternatives:
621S - Low Skew 1 to 4 Clock Buffer

Overview

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.

621 - Block Diagram
621 - Pinout
621 - Block Diagram
621 - Pinout
  • Low skew outputs (150 ps)
  • Packaged in 8-pin SOIC or 8-pin DFN (2x2mm)
  • RoHS 5 or RoHS 6 (lead-free) package
  • Low power CMOS technology
  • Operating voltages of 1.2 V to 1.8 V
  • Output Enable pin tri-states outputs
  • 3.3 V tolerant input clock
  • Industrial or commercial temperature ranges

Documentation

Design & Development

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.

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Diagram of ECAD Models

Models
Type Title Date
Model - IBIS
ICS621_1p8 IBIS Model
ZIP 7 KB
1 item

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Support Communities

  1. Forced break issue of Self-programming RL78

    Hi support team, I noticed that forced break is ignored while using the function "FSL_ChangeInterruptTable". (Occur lockup a debugger.) However, It's possible to break by a hardware or software break-point at RAM or ROM. After calling the function "FSL_RestoreInterruptTable" , forced break is enabled. This seems to ...

    Mar 4, 2016
  2. How to determine which DMA is used by core ThreadX components

    How can I determine which DMA engine is being used by core ThreadX components?  In particular, the http server (NetX) and USBX. Thanks, Rich

    Mar 5, 2016
  3. Synergy CAD symbols on RenesasRulz

    HI everyone, I'm posting this message to ask if anyone has CAD footprints they'd like to share for use with Synergy. Renesas hasn't released the BXL files for Synergy yet, so I was wondering if anyone had made their own footprints and symbols. If you want to ...

    Mar 4, 2016
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FAQs

  1. For IDT clock fanout buffer 621NILFT, where do we connect its exposed pad?

    You can connect the EPAD to ground on the ICS621 DFN package.

    Oct 31, 2016
  2. I can't cancel (exit) deep software standby mode.

    To cancel deep software standby mode using an external interrupt (IRQ), a pin that has a pin name ending in "-A" must be used. In addition, the number of release reset pins differs according to product. - RX610, 62N, 621: IRQ0-A to IRQ3-A - RX62T: IRQ0-A and IRQ1-A

    Jun 20, 2013
  3. Is it possible to debug internal processing via PDG V.2 or HEW?

    ... Generator Library are referred to as PDG and RPDL, respectively. The library for debugging supports the following series of the RX family.RX62G, RX62N/621, RX62T, RX630, RX63N/631, RX63T, RX210, and RX220 Open the project in which the PDG is used. Change the RPDL file registered as ...

    Nov 10, 2015
View All Results from FAQs (4)