Description
The ICS581-01 and ICS581-02 are glitch free, Phase Locked Loop (PLL) based clock multiplexers (mux) with zero delay from input to output. They each have four low skew outputs which can be configured as a single output, three outputs, or four outputs. The ICS581-01 allows user control over the mux switching, while the ICS581-02 has automatic switching between the two clock inputs.
The ICS581-01 and -02 are members of ICS’ ClockBlocksTM family of clock generation, synchronization, and distribution devices. For a non-PLL based clock mux, see the ICS580-01.

Features
• 16-pin TSSOP package
• Pb-free packaging available
• No short pulses or glitches on output
• Operates from 6 to 200 MHz
• Low skew outputs
• User controlled (-01) or automatic, timed mux switch (-02)
• Ideal for systems with back-up or redundant clocks
• Zero delay (input to output)
• 50% output duty cycle allows duty cycle correction
• SpreadSmartTM technology works with spread spectrum parts
• Industrial temperature of ICS581-02 available