QuickSwitch Products 3.3V 32-Bit Bus Switch for Hot Swap Applications

The QS34XVH245 HotSwitch is a high bandwidth 32-bit bus switch. TheQS34XVH245 has very low ON resistance, resulting in under 250pspropagation delay through the switch. The switches can be turned ONunder the control of individual LVTTL-compatible Output Enable (OEx)signals for bidirectional data flow with no added delay or ground bounce. Inthe ON state, the switches can pass up to 5V. In the OFF state, the switchesoffer very high impedence at the terminals. The combination of near-zero propagation delay, high OFF impedance,and over-voltage tolerance makes the QS34XVH245 ideal for high performancecommunications applications. The QS34XVH245 is characterized for operation from -40°C to +85°C.

• N channel FET switches with no parasitic diode to VCC
  • Isolation under power-off conditions
  • No DC path to VCC or GND
  • 5V tolerant in OFF and ON state
• 5V tolerant I/Os
• Low RON , 4O typical
• Flat RON characteristics over operating range
• Rail-to-rail switching 0 - 5V
• Bidirectional dataflow with near-zero delay: no added ground bounce
• Excellent RON matching between channels
• VCC operation: 2.3V to 3.6V
• High bandwidth - up to 500MHz
• LVTTL-compatible control Inputs
• Undershoot Clamp Diodes on all switch and control Inputs
• Low I/O capacitance, 4pF typical
• Available in 80-pin QVSOP package