558G-01LFT

Overview

The Renesas Electronics 558G-01LFT is a PECL/CMOS to CMOS clock driver belonging to the IDT ClockBlocks family. It accepts high-speed inputs of either PECL or CMOS and integrates selectable internal dividers of 1, 2, 3, or 4. The device provides four low skew outputs with skew less than 250 ps. It operates with input voltages of 3.3 V or 5.0 V and supports output voltages of 2.5 V, 3.3 V, or 5.0 V. The component functions as a voltage translator and includes output enables for tri-stating one, three, or all four outputs. It is designed for applications up to 250 MHz.

Feature Summary

• Accepts PECL or CMOS inputs
• Four low skew outputs (<250 ps)
• Selectable internal divider (1, 2, 3, or 4)
• Operates up to 250 MHz

Applications

• IA64 designs
• Clock distribution systems
• Voltage translation between PECL/CMOS and CMOS domains

Part Context

The 558G-01LFT is part of the IDT ClockBlocks family, which specializes in clock generation, synchronization, and distribution devices. This specific model is a member of the 558 series, which includes variants like the 558-01. The 'G' suffix typically indicates lead-free packaging compliant with RoHS standards, while 'LFT' denotes tape and reel packaging.

Replacement Considerations

The 558-01 is listed as an obsolete alternative in some sources. For active replacement, verify current availability of the 558G-01LFT or consult Renesas for equivalent zero-delay buffers or other clock drivers within the ClockBlocks family that match the 16-pin TSSOP package and electrical specifications.