The 8V54816A is a 16-port, bi-directional cross-point clock switch designed for clock distribution in MicroTCA.4 systems. It features 16 bi-directional M-LVDS ports. Each port can be individually set as input or output. Each output port can be connected to any port defined as input. Each port features switchable termination (ON: 100Ω, OFF: High impedance). Output ports can drive up to 19-inch PCB tracks with M-LVDS levels. The device is optimized for very low additive phase noise. Configuration of the device is achieved by I2C. At startup, a default configuration is set where all ports are in High-Impedance mode with outputs disabled.


  • Sixteen bi-directional M-LVDS ports
  • Operating frequency: up to 350MHz (maximum)
  • Switchable termination resistors
  • I2C support with read-back capabilities up to 400kHz
  • PCI Express (2.5Gb/S), Gen 2 (5Gb/s) and Gen 3 (8Gb/s) jitter compliant
  • Architecturally compliant with MicroTCA.4 specification
  • Output polarity inversion
  • Support for 1PPS signals
  • Full 3.3V supply voltage
  • 12mm x 12mm, 100-lead VFQFN
  • E-Pad size: 6.9mm x 6.9mm
  • 0°C to +70°C ambient operating temperature
  • Lead-free (RoHS 6) packaging

Product Options

Part Number Part Status Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
Active VFQFPN 100 C Yes Tray
Active VFQFPN 100 C Yes Reel

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
8V54816A Datasheet Datasheet PDF 1.56 MB
PCN# : A1904-01 Add Greatek, Taiwan as an Alternate Assembly Facility Product Change Notice PDF 983 KB
PCI Express Timing Solutions Overview Overview PDF 275 KB
IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB