SN74CBT3345
8-BIT BUS SWITCH

SCDS027B - MAY 1995 - REVISED JUNE 1996

features

• Standard '245-Type Pinout
• 5- Switch Connection Between Two Ports
• TTL-Compatible Control Input Levels
• Package Options Include Plastic Shrink Small-Outline (DB), Small-Outline (DW), and Thin Shrink Small-Outline (PW) Packages

description

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 ) inputs. When is low or OE is high, the switch is on and port A is connected to port B. When is high and OE is low, the switch is open and a high-impedance state exists between the two ports.

The SN74CBT3345 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 SN74CBT3345 is characterized for operation from 0°C to 70°C.