FST34X2245QSP

FST34X2245 32-Bit Bus Switch with 25: Series Resistors in Outputs December 2001 Revised January 2005 FST34X2245 32-Bit Bus Switch with 25: Series Resistors in Outputs General Description The Fairchild Switch FST34X2245 provides 32-bits of high speed CMOS TTL-compatible bus switching in a standard flow-through mode. The low On Resistance of the switch allows inputs to be connected to outputs without adding propagation delay or generating additional ground bounce noise. The device is organized as a 32-bit switch. When OE is LOW, the switch is ON and Port A is connected to Port B. When OE is HIGH, the switch is OPEN and a high-impedance state exists between the two ports. The FST34X2245 has equivalent 25: series resistors to reduce signal-reflection noise, eliminating the need for external terminating resistors. Features ■ 25: switch connection between two ports ■ Minimal propagation delay through the switch ■ Low lCC ■ Zero bounce in flow-through mode ■ Control inputs compatible with TTL level ■ 32-bit version of FST32245 ■ Packaged in 20.5mm 80-lead package Ordering Code: Order Number FST34X2245QSPX FST34X2245QSPX_NL (Note 1) Package Number MQA80A MQA80A Package Description 80-Lead, QVSOP, JEDEC MO-154, 0.150" Wide Pb-Free 80-Lead, QVSOP, JEDEC MO-154, 0.150" Wide Note 1: “_NL” indicates Pb-Free product (per JEDEC J-STD-020B). Device is available in Tape and Reel only. Logic Diagram © 2005 Fairchild Semiconductor Corporation DS500594 www.fairchildsemi.com FST34X2245 ...