FST16244

Preliminary FST16244 16-Bit Bus Switch (Preliminary) May 2001 Revised May 2001 FST16244 16-Bit Bus Switch (Preliminary) General Description The Fairchild Switch FST16244 provides 16-bits of highspeed CMOS TTL-compatible bus switching. 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 16-bit switch. There are four 4-bit switches with separate output enable inputs. When OE is LOW, the switch in ON and Port A is connected to Port B. When OE is HIGH, the switch OFF and a high impedance state exists between the A and B Ports. Features s 4Ω switch connection between two ports. s Minimal propagation delay through the switch. s Low lCC. s Zero bounce in flow-through mode. s Control inputs compatible with TTL level. Ordering Code: Order Number FST16244MTD Package Number MTD48 Package Description 48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Connection Diagram Logic Diagram Pin Descriptions Pin Name OEn 1An, 2An, 3An, 4An 1Bn, 2Bn, 3Bn, 4Bn Description Output Enable Input (Active LOW) Bus A Bus B Truth Table Inputs OEx L H H = HIGH Voltage Level L = LOW Voltage Level Outputs A, B A Port = B Port Z Z = High Impedance © 2001 Fairchild Semiconductor Corporation DS500420 www.fairchildsemi.com Preliminary FST1...