ICS8344I-01

PRELIMINARY LOW SKEW, 1-TO-24 DIFFERENTIALTO-LVCMOS/LVTTL FANOUT BUFFER ICS8344I-01 GENERAL DESCRIPTION The ICS8344I-01 is a low voltage, low skew IC S fanout buffer and a member of the HiPerClockS ™ HiPerClockS™ family of High Performance Clock Solutions from IDT. The ICS8344I-01 has two selectable clock inputs. The CLKx, nCLKx pairs can accept most standard differential input levels. The ICS8344I-01 is designed to translate any differential signal level to LVCMOS/LVTTL levels. The low impedance LVCMOS/LVTTL outputs are designed www.DataSheet4U.com to drive 50Ω series or parallel terminated transmission lines. The effective fanout can be increased to 48 by utilizing the ability of the outputs to drive two series terminated lines. Redundant clock applications can make use of the dual clock inputs which also facilitate board level testing. The clock enable is internally synchronized to eliminate runt pulses on the outputs during asynchronous assertion/deassertion of the clock enable pin. The outputs are driven low when disabled. The ICS8344I-01 is characterized at full 3.3V, full 2.5V and mixed 3.3V input and 2.5V output operating supply modes. Guaranteed output and part-to-part skew characteristics make the ICS8344I-01 ideal for those clock distribution applications demanding well defined performance and repeatability. FEATURES Twenty-four LVCMOS/LVTTL outputs, 7Ω typical output impedance Two selectable differential CLKx, nCLKx inputs CLK0, nCLK0 and CLK1, nCLK1 pai...