General Description

The Fairchild Switch FST3244 provides 8-bits of high speed CMOS TTL-compatible bus switching in a standard ’244 pin-out. 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 two 4-bit switches with separate OE inputs. 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.

Features

■ 4Ω 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.