Dual 5-Bit Bus Switch

The CYBUS3384 is a ten-bit, two-port bidirectional bus Switch that allows one bus to be connected directly to, or isolated from, another without introducing additional propagation delay or ground noise. The input and output voltage levels allow di- rect Interface with TTL and CMOS devices. Two bus enable signals, BE1 and BE2, turn on the upper and lower ve bits, respectively. Designed with a low resistance of 2, the CYBUS3384 is ideal for use in VME or other high DC drive applications. The power-off disable feature enables modules and cards to be either inserted or withdrawn from operating equipment without shutting down power. Additionally, the CYBUS3384 fa- cilitates bidirectional interfacing between 3.3V and 5V systems by placing a single Diode in series with the 5V VCC line and a resistor from pin 24 to ground. The CYBUS3384 is also suitable for small signal Analog appli- cations where crosstalk and off isolation performance of 66 dB at 50 MHz are required By Texas Instruments