ASM2I99447

Note: 1.These are stress ratings only and are not implied for functional use. Exposure to absolute maximum ratings for prolonged periods of time may affect device reliability.

The ASM2I99447 is a 3.3V or 2.5V compatible, 1:9 clock fanout buffer targeted for high performance clock tree applications. With output frequencies up to 350 MHz and output skews less than 150 pS, the device meets the needs of most demanding clock applications.

ASM2I99447 is specifically designed to distribute LVCMOS compatible clock signals up to a frequency of 350 MHz. Each output provides a precise copy of the input signal with a near zero skew. The outputs buffers of ASM2I99447 support driving of 50 terminated transmission lines on the incident edge: each is capable of driving either one parallel terminated or two series terminated transmission lines.

Two selectable independent LVCMOS compatible clock inputs are available, providing support of redundant clock source systems. The ASM2I99447 CLK_STOP control is synchronous to the falling edge of the input clock. ASM2I99447 allows the start and stop of the output clock signal only in a logic low state, thus eliminating potential output runt pulses. Applying the OE control will force the outputs into high impedance mode.

All inputs of ASM2I99447 have an internal pullup or pulldown resistor preventing unused and open inputs from floating. The device supports a 2.5V or 3.3V power supply and an ambient temperature range of 40°C to +85°C. The ASM2I99447 is pin and function compatible but performance enhanced to the MPC947 and MPC9447.