PCK2001RDB,112

Clock Buffers, Drivers Overview

The PCK2001RDB,112 is a 1-to-6 fanout clock buffer designed for high-speed signal distribution. It supports operating frequencies up to 533 MHz and is optimized for 33, 66, 100, and 133 MHz applications. The device features an I²C interface for individual control of each SDRAM clock output enable/disable state. It operates on a 3.3 V supply with multiple VDD and VSS pins to minimize noise. Key performance metrics include part-to-part skew less than 500 ps and typical propagation delays of 2.5 ns.

Clock Buffers, Drivers Feature Summary

• 1:6 fanout buffer supporting frequencies up to 533 MHz
• I²C serial interface for individual output enable/disable control
• Low skew characteristics: <500 ps part-to-part, ~175 ps typical
• 3.3 V operation with dedicated power pins for noise reduction

Clock Buffers, Drivers Applications

• Registered SDRAM DIMM support (up to four DIMMs)
• 133/100 MHz CPU clock distribution
• 66/33 MHz PCI clock distribution
• 14.318 MHz reference clock buffering

Clock Buffers, Drivers Procurement Notes

Verify the orderable part number PCK2001RDB against the specific package requirement. The suffix DB indicates a 16-pin SSOP package. Confirm temperature range specifications match the application environment, as this variant covers 0 to +70 °C. Ensure I²C address compatibility with the system controller.

Clock Buffers, Drivers Selection Notes

Select this component when a 1-to-6 clock split is required for memory or peripheral buses. Compare against the PCK2001 (48-pin, 1:18) and PCK2001M (28-pin, 1:10) if higher fan-out counts are needed. Ensure the design accommodates the 3.3 V logic levels and I²C bus constraints defined in the datasheet.

Clock Buffers, Drivers Part Context

This device belongs to the PCK2001 family of clock buffers from Philips Semiconductors (now NXP). It serves as a compact alternative to the larger pin-count variants, specifically tailored for server applications requiring distributed clocking to registered memory modules with minimal board space.

Clock Buffers, Drivers Replacement Considerations

Direct replacements within the same family include the PCK2001 and PCK2001M, though these offer different pin counts and fan-out ratios (1:18 and 1:10 respectively). Verify pin compatibility and electrical specifications before substituting.