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CY23FS04-3: Failsafe™ 2.5 V/3.3 V Zero Delay Buffer | 赛普拉斯半导体

CY23FS04-3: Failsafe™ 2.5 V/3.3 V Zero Delay Buffer

2020 年 5 月 28 日

Failsafe™ 2.5 V/3.3 V Zero Delay Buffer


  • Internal digital controlled crystal oscillator (DCXO) for continuous glitch-free operation
  • Zero input-output propagation delay
  • Low-jitter (35 ps max RMS) outputs
  • Low output-to-output skew (200 ps max)
  • 4.17 MHz to 166.7 MHz reference input
  • Supports industry standard input crystals
  • 166.7 MHz outputs
  • 5V-tolerant inputs
  • Phase-locked loop (PLL) bypass mode
  • Dual reference inputs
  • 如需更多信息,请参阅 PDF 文档


The CY23FS04-3 is a FailSafe™ zero delay buffer with two reference clock inputs and four phase-aligned outputs. The device provides an optimum solution for applications where continuous operation is required in the event of a primary clock failure.

The continuous, glitch-free operation is achieved by using a DCXO, which serves as a redundant clock source in the event of a reference clock failure by maintaining the last frequency and phase information of the reference clock.

Dear valued customer,

Thank you for choosing our products. They come with all the know-how and passion that our engineers have put into it. As you probably already know, Cypress is now Infineon. This is a major step for our company, but also for the good of you. 

Reliability and business continuity are of utmost importance for us. Hence, we remain fully committed to honoring existing customer and distributor relationships. This includes offering the legacy Cypress product portfolio. We thank you very much for your trusting support.

For the full version of this message, please download the PDF version.