DESCRIPTION

The PCK2002 is a 1–18 fanout buffer used for 133/100 MHz CPU, 66/33 MHz PCI, 14.318 MHz REF, or 133/100/66 MHz SDRAM clock distribution. 18 outputs are typically used to support up to 4 SDRAM DIMMS commonly found in desktop, workstation or server applications.

FEATURES

• HIGH speed, LOW noise non-inverting 1–18 buffer

• Typically used to support four SDRAM DIMMs

• Multiple VDD, VSS pins for noise reduction

• 3.3 V operation

• Separate 3-State pin for testing

• ESD protection exceeds 2000 V per Standard 801.2

• Optimized for 66 MHz, 100 MHz and 133 MHz operation

• Typical 175 ps skew outputs

• Available in 48-pin SSOP and TSSOP packages

• See PCK2002M for mobile (reduced pincount) 28-pin 1-10 buffer version

• Spread spectrum compliant

• Individual clock output enable/disable via I2C