Low Voltage 1:9 Clock Distribution Chip

The MPC947 is a 1:9 low voltage clock distribution chip. The device features the capability to select between two LVTTL compatible inputs and fans the signal out to 9 LVCMOS or LVTTL compatible outputs. These 9 outputs were designed and optimized to drive 50Ω series terminated transmission lines. With output–to–output skews of 500ps, the MPC947 is ideal as a clock distribution chip for synchronous systems which need a tight level of skew at a relatively low cost. For a similar product targeted at a higher price/performance point, consult the MPC948 data sheet.

• Clock Distribution for PowerPC 620 L2 Cache

• 2 Selectable LVCMOS/LVTTL Clock Inputs

• 500ps Maximum Output–to–Output Skew

• Drives Up to 18 Independent Clock Lines

• Maximum Output Frequency of 110MHz

• Synchronous Output Enable

• Tristatable Outputs

• 32–Lead TQFP Packaging

• 3.3V VCC Supply Voltage