RENESAS QS3L2384ZQ

The QS3L384 and QS3L2384 provide a set of ten high-speed CMOS TTL-compatible bus switches. The low ON resistance of the QS3L384 allows inputs to be connected to outputs without adding propagation delay and without generating additional ground bounce noise. The Bus Enable (BE（overline）) signals turn the switches on. Two bus enable signals are provided, one for each of the upper and lower five bits of the two 10-bit buses. The QS3L2384 adds an internal series resistor with each switch to reduce reflection noise in high speed applications. When closed, the switch acts as the source (series) termination for the driver connected to it.

• Enhanced N channel FET with no inherent diode to VCC
• 5Q bidirectional switches connect inputs to outputs
• Zero propagation delay (QS3L384); zero ground bounce
• Undershoot clamp diodes on all switch and control pins
• Ultra low power with 0.2μA typical ICC
• QS3L2384 is 25Ω version for low noise
• Two enables control five bits each
• QS3L384 available in SOIC, QSOP and TSSOP; QS3L2384 available in SOIC and QSOP

• Hot-swapping, hot-docking (Application Note AN-13)
• Voltage translation (5V to 3.3V; Application Note AN-11)
• Power conservation
• Capacitance reduction and isolation
• Bus isolation
• Clock gating