ICS8308I

Integrated Circuit Systems, Inc. ICS8308I LOW SKEW, 1-TO-8 DIFFERENTIAL/LVCMOS-TO-LVCMOS FANOUT BUFFER FEATURES 8 LVCMOS/LVTTL outputs (7Ω typical output impedance) Selectable LVCMOS_CLK or differential CLK, nCLK inputs CLK, nCLK pair can accept the following differential input levels: LVPECL, LVDS, LVHSTL, SSTL, HCSL Maximum Output Frequency: 350MHz Output Skew: (3.3V± 5%): 100ps (maximum) Part to Part Skew: (3.3V± 5%): 1ns (maximum) Supply Voltage Modes: (Core/Output) 3.3V/3.3V 3.3V/2.5V 2.5V/2.5V -40°C to 85°C ambient operating temperature Available in both, Standard and RoHS/Lead-Free compliant packages GENERAL DESCRIPTION The ICS8308I is a low-skew, 1-to-8 Fanout Buffer and a member of the HiPerClockS™ family of High Performance Clock Solutions from ICS. The ICS8308I has two selectable clock inputs. The CLK, nCLK pair can accept most differential input levels. The LVCMOS_CLK can accept LVCMOS or LVTTL input levels. The low impedance LVCMOS/LVTTL outputs are designed to drive 50 Ω series or parallel terminated transmission lines. The effective fanout can be increased from 8 to 16 by utilizing the ability of the outputs to drive two series terminated transmission lines. The ICS8308I is characterized for 3.3V core/3.3V output, 3.3V core/2.5V output or 2.5V core/2.5V output operation. Guaranteed output and part-part skew characteristics make the 8308I ideal for those clock distribution applications requiring well defined performance and repeatability. BL...