MC14042B集成電路（IC）的鎖存器規(guī)格書PDF中文資料

MC14042B屬于集成電路（IC）的鎖存器。由安森美半導體公司制造生產(chǎn)的MC14042B鎖存器鎖存器是類似于觸發(fā)器的基本數(shù)字存儲設備，但是不同之處在于，在鎖存使能（或類似命名）信號處于有效邏輯狀態(tài)的任何時間，保持的邏輯狀態(tài)都可以改變?！巴该鳌辨i存器還允許設備輸出在鎖存使能信號有效時反映輸入的當前狀態(tài)，而相反的是，狀態(tài)僅在保持狀態(tài)已固定時改變。

The MC14042B Quad Transparent Latch is constructed with MOS P?channel and N?channel enhancement mode devices in a single monolithic structure. Each latch has a separate data input, but all four latches share a common clock. The clock polarity (high or low) used to strobe data through the latches can be reversed using the polarity input. Information present at the data input is transferred to outputs Q and Q during the clock level which is determined by the polarity input. When the polarity input is in the logic “0” state, data is transferred during the low clock level, and when the polarity input is in the logic “1” state the transfer occurs during the high clock level.

Features

? Buffered Data Inputs

? Common Clock

? Clock Polarity Control

? Q and Q Outputs

? Double Diode Input Protection

? Supply Voltage Range = 3.0 Vdc to 1 8 Vdc

? Capable of Driving Two Low?power TTL Loads or One Low?power

Schottky TTL Load Over the Rated Temperature Range

? Pb?Free Packages are Available*