MC74LCX74数据手册集成电路（IC）的触发器规格书PDF

描述 Description

The MC74LCX74 is a high performance, dual D-type flip-flop with asynchronous clear and set inputs and complementary (O, Obar) outputs. Itoperates from a 2.7 to 3.6V supply. High impedance TTL compatible inputs significantly reduce current loading to input drivers while TTL compatible outputs offer improved switching noise performance. A V Ispecification of 5.5V allows MC74LCX74 inputs to be safely driven from5V devices. The MC74LCX74 consists of 2 edge-triggered flip-flops with individual D-type inputs. The flip-flop will store the state of individual D inputs, that meet the setup and hold time requirements, on the LOW-to-HIGH Clock (CP) transition.

特性 Features

• Designed for 2.7 to 3.6V V CC Operation
• 5V Tolerant Inputs - Interface Capability With 5V TTL Logic
• LVTTL Compatible
• 24mA Balanced Output Sink and Source Capability
• Near Zero Static Supply Current in All Three Logic States (10mA)Substantially Reduces System Power Requirements
• Latchup Performance Exceeds 500mA
• ESD Performance: Human Body Model >2000V; Machine Model >200V
• Pb-Free Packages are Available*

简介

MC74LCX74属于集成电路（IC）的触发器。由制造生产的MC74LCX74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。