MC74ACT273中文资料八路 D 触发器数据手册ONSEMI规格书

描述 Description

The MC74AC273/74ACT273 has eight edge-triggered D-type flip-flops withindividual D inputs and Q outputs. The common buffered Clock (CP) and MasterReset (MR) inputs load and reset (clear) all flip-flops simultaneously. The register is fully edge-triggered. The state of each D input, one setup timebefore the LOW-to-HIGH clock transition, is transferred to the corresponding flip-flop's Q output. All outputs will be forced LOW independently of Clock or Data inputs by a LOWvoltage level on the MR input. The device is useful for applications where the trueoutput only is required and the Clock and Master Reset are common to all storageelements.

特性 Features

• Ideal Buffer for MOS Microprocessor or Memory
• Eight Edge-Triggered D Flip-Flops
• Buffered Common Clock
• Buffered, Asynchronous Master Reset
• See MC74AC377 for Clock Enable Version
• See MC74AC373 for Transparent Latch Version
• See MC74AC374 for 3-State Version
• Outputs Source/Sink 24 mA
• ACT273 Has TTL Compatible Inputs
• Pb-Free Packages are Available

简介

MC74ACT273属于集成电路（IC）的触发器。由ONSEMI制造生产的MC74ACT273触发器触发器是能够存储单个逻辑状态或信息“位”的基本数字存储器件。这些器件至少有两个输入；一个或多个用于传递要存储的数据，另一个用于指示存储该数据的时间点。不同的触发器类型，例如 D（延迟）、SR（置位复位）和 JK，对提供给其输入的信号有不同的响应，可用于实现不同的逻辑功能。这些器件与锁存器的不同之处在于它们是边缘敏感器件，其保持的逻辑状态仅在接收到有效时钟信号时才会改变。