SN74BCT2245NSR集成电路（IC）的缓冲器驱动器接收器收发器规格书PDF中文资料

SN74BCT2245NSR属于集成电路（IC）的缓冲器驱动器接收器收发器。由美国德州仪器公司制造生产的SN74BCT2245NSR缓冲器，驱动器，接收器，收发器逻辑缓冲器、驱动器、接收器和收发器允许隔离对某个电路的逻辑信号的访问，以用于另一电路。缓冲器将其输入信号（不变或反相）传递到其输出，并可能用于清除弱信号或驱动负载。在布尔逻辑仿真器中，缓冲器主要用于增加传播延迟。逻辑接收器和收发器允许在数据总线之间进行隔离通信。

Operating Voltage Range of 4.5 V to 5.5 V

State-of-the-Art BiCMOS Design

Significantly Reduces ICCZ

B Port Has Equivalent 33-Ω Series

Resistors, So No External Resistors

Are Required

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/ordering information

The SN74BCT2245 octal transceiver and line/

MOS driver is designed for asynchronous

communication between data buses.

The device allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending on

the logic level at the direction-control (DIR) input. The output-enable (OE) input can disable the devices so that

both buses are effectively isolated.

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.

The B-port outputs, which are designed to source or sink up to 12 mA, include 33-Ω series resistors to reduce

overshoot and undershoot.