ICS651MI

Clock Buffers, Drivers Overview

The ICS651MI is a low skew, single-input to four-output clock buffer from the ClockBlocks family. It operates at supply voltages of 1.8 V or 2.5 V with an input frequency range up to 166 MHz (at 1.8 V) and 200 MHz (at 2.5 V). The device features a maximum propagation delay of 5 ns and output-to-output skew of ±250 ps. Packaged in an 8-pin SOIC, it includes an Output Enable pin for tri-stating outputs and supports industrial temperature ranges from -40°C to +85°C.

Clock Buffers, Drivers Feature Summary

• Low skew outputs with a maximum deviation of ±250 ps between any two outputs.
• Single input to four non-inverting LVCMOS outputs.
• Output Enable pin allows tri-stating of all outputs when driven low.
• 3.3 V tolerant input clock signal.

Clock Buffers, Drivers Applications

• Clock distribution in networking equipment.
• Synchronization buffers for digital logic systems.
• General-purpose clock buffering in industrial electronics.

Clock Buffers, Drivers Procurement Notes

Verify the specific ordering suffix required for the desired shipping configuration. The base part number ICS651MI corresponds to tube packaging. Suffixes such as 'T' indicate tape and reel options. Confirm RoHS compliance requirements by checking for the 'LF' suffix designation in the final order specification.

Clock Buffers, Drivers Selection Notes

Select this component for applications requiring low skew distribution without phase-locked loop complexity. Ensure the design accommodates the specified operating voltage window of 1.8 V to 2.5 V. Verify that trace lengths and termination resistances are matched across all four outputs to maintain the specified ±250 ps skew performance.

Clock Buffers, Drivers Part Context

The ICS651MI belongs to the ICS651 series of low skew clock buffers manufactured by Integrated Circuit Systems (ICS), now part of Renesas Electronics. This specific variant denotes the standard industrial temperature grade packaged in an 8-pin SOIC format without lead-free certification suffixes in the base code.

Clock Buffers, Drivers Replacement Considerations

The datasheet lists ICS651MIT, ICS651MILF, and ICS651MILFT as alternative configurations within the same functional family. These variants share identical electrical characteristics but differ in packaging quantity (tape and reel vs. tube) and material composition (lead-free).