SN74CBT3345DBQR屬于集成電路（IC）的信號開關(guān)多路復(fù)用器解碼器。由美國德州儀器公司制造生產(chǎn)的SN74CBT3345DBQR信號開關(guān)，多路復(fù)用器，解碼器邏輯型信號開關(guān)、多路復(fù)用器和編碼器 IC 可用于對以數(shù)字格式表示數(shù)據(jù)的電信號進(jìn)行路由和選擇。這些器件與設(shè)計用于模擬信號的類似產(chǎn)品有所不同，它們保留的信息表示為兩個電狀態(tài)之一，而不是兩個外部界限內(nèi)的無窮變化量。

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.