SN74ACT574 - 具有三态输出的八路 D 类边沿触发器

SN74ACT574是TI德州仪器公司的一款D类触发器产品，SN74ACT574是具有三态输出的八路 D 类边沿触发器，本站介绍了SN74ACT574的封装应用图解、特点和优点、功能等，并给出了与SN74ACT574相关的TI元器件型号供参考。

SN74ACT574 - 具有三态输出的八路 D 类边沿触发器 - D类触发器 - 触发器/锁存器/寄存器 - 德州仪器

产品描述

These 8-bit flip-flops feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. The devices are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

The eight flip-flops of the ’ACT574 devices are D-type edge-triggered flip-flops. On the positive transition of the clock (CLK) input, the Q outputs are set to the logic levels set up at the data (D) inputs.

A buffered output-enable (OE)\ input can be used to place the eight outputs in either a normal logic state (high or low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and the increased drive provide the capability to drive bus lines in a bus-organized system without need for interface or pullup components.

OE\ does not affect internal operations of the flip-flop. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.

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.

产品特性

4.5-V to 5.5-V VCC Operation
Inputs Accept Voltages to 5.5 V
Max tpd of 9 ns at 5 V
Inputs Are TTL-Voltage Compatible

下面可能是您感兴趣的TI德州仪器公司D类触发器元器件

TI公司产品现货专家，订购TI公司产品不限最低起订量，TI芯片大陆现货即时发货，香港库存3-5天发货，海外库存7-10天发货

寻找全球TI代理商现货货源 - TI公司（德州仪器）电子元件在线订购