FST3125 4-Bit Bus Switch The ON Semiconductor FST3125 is a quad, high performance switch. The device is CMOS TTL compatible when operating between 4 and 5.5 Volts. The device exhibits extremely low R and adds ON nearly zero propagation delay. The device adds no noise or ground bounce to the system. FST3125 1 OE 1 2 3 1A 1B 4 OE 2 5 6 2A 2B 10 OE 3 9 8 3A 3B 13 OE 4 12 11 4A 4B Figure 2. Logic Diagram TRUTH TABLE Inputs Outputs OE A, B L A = B H Z ORDERING INFORMATION Device Order Number Package Shipping FST3125DR2G SOIC14 2500 Units / Tape & Reel (Pb Free) FST3125DTR2G TSSOP14 2500 Units / Tape & Reel (Pb Free) For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D.