VS3125

VS3125 Quad Bus Switch with Individual Active Low Enables Applications = = = 5v to 3.3V translation in mixed supply environment Hot Swap interface Video, audio switching = = Clock gating Logic replacement General Description The VS3125 contains a set of four high-speed, low-resistance bus switches. Each bus switch is individually controlled by TTL-compatible, active-low control input (/xOE). The low ON resistance of VS3125 allows inputs to be connected to outputs without adding propagation delay and without generating additional signal noise. The VS3125 is function and pinout compatible with QS3125. It enables 5V to 3.3V level translation when used with an external diode in the power supply line. In addition, the high off-isolation between switch terminals in the ‘disable’ mode, and the near-zero propagation delay in the ‘on’ state make the VS3V125 an ideal interface element for hot-swapping applications. Features = = = = = Enhanced N-FET with no dc path to VCC or GND in normal operating signal voltage range. Low impedance bidirectional data flow Pin-compatible with QS3125 & PI5C3125 switches Zero added ground bounce or signal noise TTL-compatible control signals = = = = = Near-zero propagation delay Undershoot clamp diodes on all switch and control pins ESD rating >2000V (Human Body Model) or >200V (Machine Model) Latch-up current >100mA Available in 150-mil wide QSOP package Figure 1. Functional Block Diagram Figure 2. Pin Configuration 1A /1OE /2OE /3OE...