ASM2I99446

July 2005 ASM2I99446 rev 0.4 2.5V and 3.3V LVCMOS Clock Distribution Buffer Features ƒ Configurable 10 outputs LVCMOS clock distribution buffer ƒ Compatible to single, dual and mixed 3.3V/2.5V Voltage supply ƒ Wide range output clock frequency up to 250MHz ƒ Designed for mid-range to high-performance telecom, networking and computer applications ƒ Supports applications requiring clock redundancy ƒ Max. output skew of 200pS (150pS within one bank) ƒ Selectable output configurations per output bank ƒ Tristatable outputs ƒ 32 lead LQFP & TQFP Packages ƒ Ambient operating temperature range of - -40 to 85°C Functional Description The ASM2I99446 is a 2.5V and 3.3V compatible 1:10 clock distribution buffer designed for low-voltage mid-range to high-performance telecom, networking and computing applications. Both 3.3V, 2.5V and dual supply voltages are supported for mixed-voltage applications. The ASM2I99446 offers 10 low-skew outputs and 2 selectable inputs for clock redundancy. The outputs are configurable and support 1:1 and 1:2 output to input frequency ratios. The ASM2I99446 is specified for the extended temperature range of -40°C to 85°C. The ASM2I99446 is a full static fanout buffer design supporting clock frequencies up to 250MHz. The signals are generated and retimed on-chip to ensure minimal skew between the three output banks. Two independent LVCMOS compatible clock inputs are available. This feature supports redundant clock sources or the addition of...