SN74CBTLV3245ADGVR集成电路（IC）的信号开关多路复用器解码器规格书PDF中文资料

SN74CBTLV3245ADGVR属于集成电路（IC）的信号开关多路复用器解码器。由美国德州仪器公司制造生产的SN74CBTLV3245ADGVR信号开关，多路复用器，解码器逻辑型信号开关、多路复用器和编码器 IC 可用于对以数字格式表示数据的电信号进行路由和选择。这些器件与设计用于模拟信号的类似产品有所不同，它们保留的信息表示为两个电状态之一，而不是两个外部界限内的无穷变化量。

FEATURES

· Standard '245-Type Pinout

· 5-W Switch Connection Between Two Ports

· Rail-to-Rail Switching on Data I/O Ports

· I off Supports Partial-Power-Down Mode

Operation

· Latch-Up Performance Exceeds 250 mA Per

JESD 17

· ESD Protection Exceeds JESD 22

– 2000-V Human-Body Model (A114-A)

– 200-V Machine Model (A115-A)

DESCRIPTION/ORDERING INFORMATION

The SN74CBTLV3245A provides eight bits of high-speed 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. When output enable (OE) is low, the 8-bit bus 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. The Ioff feature ensures that damaging

current will not backflow through the device when it is powered down. The device has isolation during power off.

To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup

resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.