MC100EP195FAR2

Overview

The MC100EP195FAR2 is a programmable delay line integrated circuit manufactured by onsemi, belonging to the 100EP series. It functions as a Programmable Delay Chip (PDC) designed for clock deskewing and timing adjustment in high-speed digital systems. The device provides variable delay for differential NECL/PECL input transitions with a maximum input clock frequency exceeding 1.2 GHz. It features a programmable range from 0 ns to 10 ns with 10 ps increments. The component operates within a supply voltage range of 3.0 V to 3.6 V for PECL mode or -3.0 V to -3.6 V for NECL mode. It is housed in a 32-LQFP package and supports ECL, LVCMOS, or LVTTL inputs for control data.

Feature Summary

• Provides precise programmable delay for differential clock signals to manage skew
• Supports multiple logic input standards including ECL, LVCMOS, and LVTTL for control lines
• Includes safety clamps on inputs and open input default state functionality
• Features temperature compensation within the 100 Series design

Applications

• Clock deskewing in high-speed communication systems
• Timing adjustment for differential signal paths
• Skew management in serial-to-parallel converters

Procurement Notes

Verify component status carefully as this specific part number is listed as obsolete and no longer manufactured. Confirm availability through authorized distributors or secondary market suppliers like Rochester Electronics. Ensure that any replacement parts meet the original electrical specifications and pinout requirements for your design.

Selection Notes

Select the MC100EP195FAR2 only if legacy compatibility is required for existing designs utilizing the 100EP series. For new designs, consider active alternatives such as the MC100EP195FAR2G which offers RoHS compliance. Evaluate whether the 1.2 GHz maximum input frequency and 10 ns delay range meet the system's timing constraints before finalizing the selection.

Part Context

This component is part of onsemi's 100EP family of high-speed ECL devices. The MC100EP195 specifically addresses timing alignment needs in complex digital architectures. It serves as a critical element in maintaining signal integrity across high-frequency data buses where precise phase relationships are mandatory.

Replacement Considerations

The MC100EP195FAR2G is identified as a direct replacement. Verify that the 'G' suffix indicates RoHS compliance and confirm mechanical compatibility with the existing 32-LQFP footprint.