SN74CBT6800
10-BIT BUS SWITCH
WITH PRECHARGED OUTPUTS FOR LIVE INSERTION

SCDS005G - MARCH 1993 - REVISED AUGUST 1996

features

• 5- Switch Connection Between Two Ports
• TTL-Compatible Input and Output Levels
• Outputs Are Precharged by Bias Voltage to Minimize Signal Distortion During Live Insertion
• Package Options Include Plastic Shrink Small-Outline (DB), Small-Outline (DW), and Thin Shrink Small-Outline (PW) Packages

   

description

The SN74CBT6800 provides ten bits of high-speed TTL-compatible bus switching. The low on-state resistance of the switch allows bidirectional connections to be made while adding near-zero propagation delay. The device also precharges the B port to a user-selectable bias voltage (BIASV) to minimize live-insertion noise.

The SN74CBT6800 is organized as one 10-bit switch with a single enable () input. When is low, the switch is on and port A is connected to port B. When is high, the switch between port A and port B is open and the B port is precharged to BIASV through the equivalent of a
10-k resistor.

The SN74CBT6800 is available in TI's shrink small-outline (DB) and thin shrink small-outline (PW) packages, which provide the same I/O pin count and functionality of standard small-outline packages in less than half the printed-circuit-board area.

The SN74CBT6800 is characterized for operation from -40°C to 85°C.