SL23EP04NZZI-1

Clock Buffers, Drivers Overview

The SL23EP04NZZI-1 is a low skew, low jitter fanout clock buffer manufactured by Silicon Laboratories. It distributes one reference input clock to four buffered outputs, operating from DC to 220 MHz with a 3.3V to 2.5V supply voltage range. The device features an Output Enable (OE) control function and operates within the industrial temperature range of -40°C to +85°C. Packaged in an 8-pin TSSOP, it provides up to 30pF load capacitance per output at lower frequencies or 15pF at higher speeds.

Clock Buffers, Drivers Feature Summary

• Four buffered outputs driven by a single reference clock input
• Low output-to-output skew: 90 ps typical, 180 ps maximum at 3.3V
• Operating frequency range from DC to 220 MHz
• Output Enable (OE) logic configuration for disabling outputs

Clock Buffers, Drivers Applications

• General Purpose PCI/PCI-X Clock Buffer
• Printers, MFPs and Digital Copiers
• PCs and Work Stations
• Routers, Switchers and Servers
• Datacom and Telecom

Clock Buffers, Drivers Procurement Notes

Verify that the component is sourced as a surplus unit, as the datasheet explicitly marks the SL23EP04NZ series as 'Not Recommended for New Design'. Confirm the specific ordering suffix matches the required package type and shipping format, such as Tube versus Tape and Reel, when sourcing replacement inventory.

Clock Buffers, Drivers Selection Notes

Select this part for applications requiring a 1-to-4 clock distribution with minimal skew. Ensure the design accommodates the OE pin logic, where a Low signal disables the outputs to a Logic Low state. Verify that the power supply voltage remains within the 2.5V to 3.3V range and that the thermal resistance characteristics are suitable for the intended PCB layout.

Clock Buffers, Drivers Part Context

This component belongs to the SL23EP04NZ family of low skew clock buffers. The 'ZI' suffix indicates the Industrial temperature grade (-40°C to +85°C), while the trailing '-1' specifies the particular Output Enable logic implementation used in this variant. Other variants exist with different OE configurations or commercial temperature ratings.

Clock Buffers, Drivers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. As the product is marked 'Not Recommended for New Design', alternative components must be evaluated based on matching electrical parameters, specifically the 1-to-4 fanout capability, 220 MHz frequency limit, and 8-pin TSSOP package dimensions.

Clock Buffers, Drivers FAQ

What is the behavior of the outputs when the OE pin is set to Low?

When the OE pin is Low, the SL23EP04NZZI-1 outputs are disabled and driven to a Logic Low state.

What is the maximum load capacitance supported at 220 MHz?

At an operating frequency of 220 MHz, the maximum supported load capacitance is 15 pF per output.

How does the part-to-part skew compare to the output-to-output skew?

The typical part-to-part skew is 80 ps (maximum 160 ps), which is slightly higher than the typical output-to-output skew of 60 ps (maximum 120 ps).