General Description
The ICS83940DI is a low skew, 1 to 18 LVPECL to LVCMOS/LVTTL fanout buffer. The ICS83940DI has two selectable clock inputs. The PCLK, nPCLK pair can accept LVPECL, CML, or SSTL input levels. The LVCMOS_CLK can accept LVCMOS or LVTTL input levels. The low impedance LVCMOS/LVTTL outputs are designed to drive 50 series or parallel terminated transmission lines.
The ICS83940DI is characterized at full 3.3V and 2.5V or mixed 3.3V core, 2.5V output operating supply modes. Guaranteed output and part-to-part skew characteristics make the ICS83940DI ideal for those clock distribution applications demanding well defined performance and repeatability.

FEATUREs
• Eighteen LVCMOS/LVTTL outputs
• Selectable LVCMOS_CLK or LVPECL clock inputs
• PCLK, nPCLK pair can accept the following differential input levels: LVPECL, CML, SSTL
• LVCMOS_CLK supports the following input types: LVCMOS or LVTTL
• Maximum output frequency: 250MHz
• Output skew: 150ps (maximum)
• Part-to-part skew: 750ps (maximum)
• Operating supply modes:
• Core/Output
    3.3V/3.3V
    3.3V/2.5V
    2.5V/2.5V
• -40°C to 85°C ambient operating temperature
• Lead-free (RoHS 6) packaging
• For functional replacement part for 83940DKILF, use 87016i