NXP USA Inc. MPC940LFA

Description
The MPC940L is a 1:18 low voltage clock distribution chip with 2.5V or 3.3V LVCMOS output capabilities. It features the capability to select either a differential LVPECL or an LVCMOS compatible input. The 18 outputs are 2.5V or 3.3V LVCMOS compatible and feature the drive strength to drive 502 series or parallel terminated transmission lines. With outputtooutput skews of 150ps, the MPC940L is ideal as a clock distribution chip for the most demanding of synchronous systems. The 2.5V outputs also make the device ideal for supplying clocks for a highperformance microprocessorbased design.

Features
LVPECL or LVCMOS Clock Input
2.5V LVCMOS Outputs for Pentium II Microprocessor Support
150ps Maximum OutputtoOutput Skew
Maximum Output Frequency of 250MHz
32Lead LQFP Packaging
Dual or Single Supply Device:
Dual VCC Supply Voltage, 3.3V Core and 2.5V Output
Single 3.3V VCC Supply Voltage for 3.3V Outputs
Single 2.5V VCC Supply Voltage for 2.5V I/O

Applications
Clock distribution for synchronous systems
Clock distribution for highperformance microprocessorbased designs
Test clock interface