SN74AHCT125PWRE4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

SN74AHCT125PWRE4属于集成电路（IC）的缓冲器驱动器接收器收发器。由德州仪器制造生产的SN74AHCT125PWRE4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。

1 Features

• Inputs are TTL-voltage compatible

• Latch-up performance exceeds 250 mA

per JESD 17

2 Applications

• Enable or disable a digital signal

• Controlling an indicator LED

• Debounce a switch

• Eliminate slow or noisy input signals

3 Description

The ’AHCT125 devices are quadruple bus buffer

gates featuring independent line drivers with 3-state

outputs. Each output is disabled when the associated

output-enable (OE) input is high. When OE is low, the

respective gate passes the data from the A input to its

Y output.

For 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.