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Standard ’245-Type Pinout

5-Ω Switch Connection Between Two Ports

TTL-Compatible Input Levels

description/ordering information

The SN74CBT3345 provides eight bits of

high-speed TTL-compatible bus switching in a

standard ’245 device pinout. The low on-state

resistance of the switch allows connections to be

made with minimal propagation delay.

The device is organized as one 8-bit switch bank

with dual output-enable (OE and OE) inputs.

When OE is low or OE is high, the switch is on, and

port A is connected to port B. When OE is high and

OE is low, the switch is open, and the

high-impedance state exists between the two

ports.