ICS542MIT

Clock Buffers, Drivers Overview

The ICS542MIT is a clock divider integrated circuit manufactured by Renesas Electronics Corporation, formerly IDT. It accepts an input clock up to 156 MHz and produces divided outputs of 2, 4, 6, 8, 12, or 16. The device features two CMOS outputs with low skew (500 ps), where one output is a divide-by-two of the other. Operating on a single supply voltage of 3.0 V to 5.5 V, it utilizes an advanced low-power CMOS process without internal PLLs to avoid phase noise degradation. The component is housed in an 8-pin SOIC package and supports industrial temperature ranges from -40°C to +85°C.

Clock Buffers, Drivers Feature Summary

• Produces divided clock outputs (÷2, ÷4, ÷6, ÷8, ÷12, ÷16) from inputs up to 156 MHz
• Low skew (500 ps) between outputs; one output is a divide-by-two of the other
• No internal PLL ensures phase noise is not degraded
• Includes power-down mode and Output Enable (OE) pin for tri-stating outputs

Clock Buffers, Drivers Applications

• Clock distribution systems requiring frequency division
• Systems needing low-skew dual clock outputs derived from a single source
• Digital logic circuits requiring specific clock divisors without PLL jitter

Clock Buffers, Drivers Procurement Notes

Verify RoHS compliance status as non-green parts reached End-of-Life on May 13, 2010. Confirm current availability through authorized distributors, as the component may be discontinued or replaced by newer revisions. Ensure the ordering suffix matches the required temperature range and packaging format.

Clock Buffers, Drivers Selection Notes

Select the MIT suffix for tape and reel packaging and industrial temperature range (-40°C to +85°C). Use the M suffix for commercial temperature range (0°C to +70°C). Ensure the input clock frequency does not exceed 156 MHz at 3.3 V or 5.0 V. Verify that the application requires fixed division ratios rather than programmable multipliers.

Clock Buffers, Drivers Part Context

The ICS542 belongs to the IDT/ICS ClockBlocks family of clock building blocks. It is related to the ICS541 and ICS543 dividers and complements multipliers like the ICS501 and ICS502. The 'MIT' designation specifically indicates the industrial temperature grade and tape-and-reel shipping configuration.

Clock Buffers, Drivers Replacement Considerations

Check for LF-suffixed versions (e.g., 542MILFT) for RoHS compliance if environmental regulations require lead-free components. Consider the ICS541 or ICS543 for alternative division ratios.