描述 Description

The MC74LVX574 is an advanced high speed CMOS octal flip-flopwith 3-state outputs. The inputs tolerate voltages up to 7V, allowing theinterface of 5V systems to 3V systems. This 8-bit D-type flip-flop is controlled by a clock pulse input and anoutput enable input. When the output enable input is high, the eightoutputs are in a high impedance state.

特性 Features

? High Speed: tPD = 8.5ns (Typ) at VCC = 3.3V
? Low Power Dissipation: ICC = 4mA (Max) at TA = 25°C
? Power Down Protection Provided on Inputs
? Balanced Propagation Delays
? Low Noise: VOLP = 0.8V (Max)
? Pin and Function Compatible with Other Standard Logic Families
? Latchup Performance Exceeds 300mA
? ESD Performance: HBM > 2000V; Machine Model > 200V
? Pb-Free Packages are Available*

簡介

MC74LVX574屬于集成電路（IC）的觸發(fā)器。由制造生產的MC74LVX574觸發(fā)器觸發(fā)器是能夠存儲單個邏輯狀態(tài)或信息“位”的基本數(shù)字存儲器件。這些器件至少有兩個輸入；一個或多個用于傳遞要存儲的數(shù)據，另一個用于指示存儲該數(shù)據的時間點。不同的觸發(fā)器類型，例如 D（延遲）、SR（置位復位）和 JK，對提供給其輸入的信號有不同的響應，可用于實現(xiàn)不同的邏輯功能。這些器件與鎖存器的不同之處在于它們是邊緣敏感器件，其保持的邏輯狀態(tài)僅在接收到有效時鐘信號時才會改變。