ML65T541*

There are a wide variety of needs for an extremely fastbuffers in high speed processor system designs likePentium, PowerPC, Mips, Sparc, Alpha and other RISCprocessors. These applications are either in the cachememory area or the main memory (DRAM) area. Inaddition, fast buffers find applications in high speed graphicsand multimediaapplications. The high capacitive loadingdue to multiplexed address lines on the system bus demandexternal buffers to take up the excess drive current. Theneeded current to skew the transitions between rise and falltimes must be done without adding excessive propagationdelay. The ML65T541 is equipped with Schottky diodesto clean up ringing from overshoot and undershoot causedby reflections in unterminated board traces.

The ML65T541*1 is a non-inverting octal buffer/line driver.The high operating frequency (66MHz driving a 50pFload) and low propagation delay (2ns) make it ideal forvery high speed applications such as processor busbuffering cache/main memory control.

The ML65T541* uses a unique analog implementation toeliminate the delays inherent in traditional digital designs. Schottky clamps reduce undershoot and overshoot, andspecial output driver circuits limit ground bounce. The ML65T541* conforms to the pinout and functionality of theindustry standard FCT541 and is intended for applicationswhere propagation delay is critical to the system design.