Description

The PI6C39911 offers selectable control over system clock functions. These multiple-output clock drivers provide the system integrator with functions necessary to optimize the timing of high-performance computer systems. Eight individual drivers, arranged as four pairs of user-controllable outputs, can each drive terminated transmission lines with impedances as low as 50-Ohms while delivering minimal and specified output skews and full-swing logic levels.

Features

• All output pair skew <100ps typical (250 Max.)

• 12.5 MHz to 133 MHz output operation

• 3.125 MHz to 133 MHz input operation (input as low as 3.125 MHz for 4x operation, or 6.25 MHz for 2x operation)

• User-selectable output functions

— Selectable skew to 18ns

— Inverted and non-inverted

— Operation at ½ and ¼ input frequency

— Operation at 2X and 4X input frequency

• Zero input-to-output delay

• 50 duty-cycle outputs

• Inputs are 5V Tolerant

• LVTTL outputs drive 50-Ohm terminated lines

• Operates from a single 3.3V supply

• Low operating current

• 32-pin PLCC package

• Jitter