Skip to main content


VersaClock® 5 Low Power Programmable Clock Generator

The IDT 5P49V5901 is low-power programmable clock generator with best-in-class jitter performance and design flexibility with universal outputs capable of generating any output frequency. The 5P49V5901 is intended for high performance consumer, networking, industrial, computing, and data-communications applications. Configurations may be stored in on-chip One-Time Programmable (OTP) memory or changed using I2C interface. This is IDTs fifth generation of programmable clock technology (VersaClock 5).The frequencies are generated from a single reference clock or crystal input. A glitchless manual switchover function allows one of the redundant clock inputs to be selected during normal operation.
Two select pins allow up to 4 different configurations to be programmed and accessible using processor GPIOs or bootstrapping. The different selections may be used for different operating modes (full function, partial function, partial power-down), regional standards (US, Japan, Europe) or system production margin testing. The device may be configured to use one of two I2C addresses to allow multiple devices to be used in a system.


  • 4 differential outputs LVPECL, LVDS, HCSL - or 8 LVCMOS outputs
  • In-system programmable with 4 independent Output Frequencies
  • Up to 350 MHz input/output frequencies
  • Also supports crystal input such as the IDT 603-25-150 (25 MHz)
  • Stores 4 different configurations in OTP non-volatile memory
  • < 100 mW core power (at 3.3V)
  • < 0.7 ps RMS phase jitter (typ)
  • Meets PCIe® Gen1/2/3, USB 3.0, 1/10 GbE clock requirements
  • 1.8 / 2.5 / 3.3V core and output voltages
  • 4x4 mm 24-ld VFQFPN
  • -40° to +85°C operating temperature range

Product Options

This device is customizable. Choose from the options below, or use the Custom Part Configuration Utility now.
Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
5P49V5901A000NLGINot Recommended
NLG24P2VFQFPN24IYesTrayCheck Availability
5P49V5901A000NLGI8Not Recommended
NLG24P2VFQFPN24IYesReelCheck Availability
5P49V5901B000NLGIActiveNLG24P2VFQFPN24IYesTrayCheck Availability
5P49V5901B000NLGI8ActiveNLG24P2VFQFPN24IYesReelCheck Availability


Technical Documentation

Title Other Languages Type Format File Size Datesort icon
Datasheets & Errata
5P49V5901 Datasheet Datasheet PDF 445 KB Sep 19, 2016
User Guides & Manuals
VersaClock 5 Programmer Board User Guide Manual PDF 461 KB Dec 7, 2015
VersaClock 5 Family Register Descriptions and Programming Guide Manual - User Reference PDF 514 KB Dec 3, 2015
VersaClock 5 Timing Commander Users Guide Manual - Software PDF 1.94 MB Oct 6, 2015
show all (5)
VersaClock 5 Evaluation Board Users Guide Manual - Eval Board PDF 636 KB Apr 28, 2015
Timing Commander Installation Guide Guide PDF 497 KB Oct 7, 2013
Apps Notes & White Papers
AN-909 PCB Layout Considerations for Designing IDT VersaClock 3S, 5 and 6 Clock Products Application Note PDF 743 KB Jul 1, 2016
AN-918 Programmable Clocks vs Crystal Oscillators Application Note PDF 221 KB Mar 10, 2016
AN-912 VersaClock 5 and VersaClock 6 In-System Programming Application Note PDF 61 KB Dec 3, 2015
show all (11)
AN-862 5P49V5901 Register Programming Guide Application Note PDF 91 KB Jun 26, 2014
AN-845 Termination - LVCMOS Application Note PDF 62 KB May 13, 2014
AN-846 Termination - LVDS Application Note PDF 50 KB May 13, 2014
AN-844 Termination - AC Coupling Clock Receivers Application Note PDF 82 KB May 13, 2014
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 403 KB May 12, 2014
AN-815 Understanding Jitter Units Application Note PDF 476 KB Apr 24, 2014
AN-808 PCI Express/HCSL Termination Application Note PDF 54 KB Jan 15, 2014
AN-806 Power Supply Noise Rejection Application Note PDF 353 KB Jan 15, 2014
PCN# : W1602-01 300mm wafer size from 200mm wafer size at Global Foundries Product Change Notice PDF 344 KB Feb 20, 2016
PCN# : MM1510-01 Programming Configuration Change on Versa Clock Product Change Notice PDF 243 KB Oct 29, 2015
IDT Clocks for Altera's Stratix V and Arria V/X FPGAs Technical Brief PDF 238 KB Feb 8, 2016
VersaClock Family of Programmable Clocks Overview 日本語 Overview PDF 598 KB Jan 18, 2016
VersaClock 5 Programmable Clocks 简体中文, 日本語 Product Brief PDF 469 KB Dec 9, 2014
show all (5)
VersaClock 5 Programmer Board Schematic Schematic PDF 30 KB Oct 2, 2014
VersaClock 5 Evaluation Board Schematic Schematic PDF 844 KB Mar 7, 2014

Software & Tools

Title Type Format File Size Datesort icon
5P49V5901 IBIS Model Model - IBIS ZIP 381 KB May 8, 2015
Timing Commander Installer v1.7.3.3 Software ZIP 17.87 MB May 12, 2016
VersaClock 5 Timing Commander Personality File Software TCP 2.94 MB Oct 5, 2015

Related Videos

  • 2014-03-11 VersaClock® 5 Low Power Programmable Clock...
  • 2015-02-13 IDT VersaClock 5 Low Jitter Lab Demonstration
  • 2014-06-06 VersaClock® 5 Evaluation Board Start-up Demo
  • 2014-12-19 How to Program VersaClock - 5 Programmable...
  • 2014-12-05 VersaClock® 5 Crystal Interface Load...
  • 2014-10-02 IDT Timing Commander™ Software Overview
  • 2013-10-17 Introduction to Timing Commander™ Software...
  • 2014-04-30 IDT Timing Commander
  • 2016-06-29 IDT Timing Solutions for NXP QorIQ /...
  • 2016-06-29 Overview of Timing Requirements for NXP...