TI 的 SN74HCT245 是一款 具有三态输出的八通道总线收发器。 查找参数、订购和质量信息.

2021年10月19日 · 74HC245是 方向可控 的八路缓冲器，主要用于实现数据总线的 双向异步通信。 为了保护脆弱的 主控芯片，通常在主控芯片的 并行 接口与 外部受控 设备的 并行接口 间添加 缓冲器。 当主控芯片与受控设备之间需要实现双向异步通信时，自然就得选用双向的八路缓冲器了，74HC245就是面向这种需求的。 常见于同 并口液晶屏 、 并口打印机 、 并口传感器 或 通讯模块 等设备的接口上。 2. 当数码管为 共阳极 时， 输出控制脚 设置为0，电流方向 Bn-->An. 是一 …

The SNx4HCT245 devices allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending upon the logic level at the direction-control (DIR) input. The output-enable ( OE) input can be used to disable the device so that the buses are effectively isolated.

The 74HC245; 74HCT245 is an 8-bit transceiver with 3-state outputs. The device features an output enable (OE) and send/receive (DIR) for direction control. A HIGH on OE causes the outputs to assume a high-impedance OFF-state. Inputs include clamp diodes.

74HCT245由I-CORE (中微爱芯)设计生产，立创商城现货销售，正品保证，参考价格￥0.4558，封装为DIP-20。 商城还提供74HCT245专业中文资料、详细参数、引脚图、PCB焊盘图，典型应用图，Datasheet数据手册等资料查询和免费下载。

TI’s SN74HCT245 is a Octal bus transceivers with tri-state outputs. Find parameters, ordering and quality information.

Description: Octal bus transceiver; 3-state. Manufacturer: NXP Semiconductors.

74HCT245D由TOSHIBA (东芝)设计生产，立创商城现货销售，正品保证，参考价格￥0.4616，封装为SOIC-20-300mil。 商城还提供74HCT245D专业中文资料、详细参数、引脚图、PCB焊盘图，典型应用图，Datasheet数据手册等资料查询和免费下载。 参数：输出类型：三态；工作电压：4.5V~5.5V；灌电流 (IOL)：6mA；拉电流 (IOH)：6mA；工作温度：-40℃~+125℃。

The MM74HCT245 3−STATE bi−directional buffer utilizes advanced silicon−gate CMOS technology and is intended for two−way asynchronous communication between data buses. It has high drive current outputs which enable high speed …

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