资 源 简 介
The SN74CBTK32245 device provides 32 bits of high-speed TTL-compaTIble bus switching. The low on-state resistance of the switch allows connecTIons to be made with minimal propagaTIon delay.
The A and B ports have an acTIve-clamp undershoot-protection circuit. When there is an undershoot, the active-clamp circuit is enabled and current from VCC is supplied to clamp the output, preventing the pass transistor from turning on.
The device is organized as four 8-bit bus switches, two 16-bit bus switches, or one 32-bit bus switch. When output-enable (OE) input is low, the switch is on and port A is connected to port B. When OE is high, the switch is open and the high-impedance state exists between the two ports.
This device is fully specified for partial-power-down applications using Ioff.
