VS3V125

VS3V125 3.3V Quad Bus Switch with Individual Active Low Enables Applications = = = = 3.3v to 2.5V translation 2.5V to 1.8V translation Hot Swapping Bus switching = = Clock gating Logic replacement General Description The VS3V125 contains a set of four high-speed, low-resistance bus switches. Each bus switch is individually controlled by LVTTL-compatible, active-low control input (/xOE). The low ON resistance of VS3V125 allows inputs to be connected to outputs without adding propagation delay and without generating additional signal noise. The VS3V125 is designed for 3.3V to 2.5V, or 2.5V to 1.8V level translation, without any external components. In addition, the high off-isolation between switch terminals in the ‘disable’ mode, and the nearzero 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 CBTLV3215 switch Zero added ground bounce or signal noise LVTTL-compatible control signals = = = = 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 /4OE 1Y 2A 3A 4A QSOP NC /1OE 1A 1Y /2OE 2A 2Y GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 ...