SN74CBTK6800DBQR屬于集成電路（IC）的信號(hào)開(kāi)關(guān)多路復(fù)用器解碼器。由美國(guó)德州儀器公司制造生產(chǎn)的SN74CBTK6800DBQR信號(hào)開(kāi)關(guān)，多路復(fù)用器，解碼器邏輯型信號(hào)開(kāi)關(guān)、多路復(fù)用器和編碼器 IC 可用于對(duì)以數(shù)字格式表示數(shù)據(jù)的電信號(hào)進(jìn)行路由和選擇。這些器件與設(shè)計(jì)用于模擬信號(hào)的類(lèi)似產(chǎn)品有所不同，它們保留的信息表示為兩個(gè)電狀態(tài)之一，而不是兩個(gè)外部界限內(nèi)的無(wú)窮變化量。

5-W Switch Connection Between Two Ports

TTL-Compatible Input Levels

Power Off Disables Outputs, Permitting

Live Insertion

Outputs Are Precharged by Bias Voltage to

Minimize Signal Distortion During Live

Insertion

Active-Clamp Undershoot-Protection

Circuit on the I/Os Clamps Undershoots

Down to –2 V

Latch-Up Performance Exceeds 100 mA Per

JESD 78, Class II

ESD Protection Exceeds JESD 22

– 2000-V Human-Body Model (A114-A)

– 200-V Machine Model (A115-A)

– 1000-V Charged-Device Model (C101)

description

The SN74CBTK6800 device 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 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 SN74CBTK6800 is organized as one 10-bit switch with a single enable (ON) input. When ON is low, the

switch is on, and port A is connected to port B. When ON is high, the switch between port A and port B is open.

When ON is high or VCC is 0 V, B port is precharged to BIASV through the equivalent of a 10-kW resistor.