CD4029中文资料Presettable Binary/Decade Up/Down Counter数据手册ONSEMI规格书

描述 Description

General Description
The CD4029BC is a presettable up/down counter which counts in either binary or decade mode depending on the voltage level applied at binary/decade input. When binary/decade is at logical “1”, the counter counts in binary, other wise it counts in decade. Similarly, the counter counts up when the up/down input is at logical “1” and vice versa.

特性 Features

■Wide supply voltage range: 3V to 15V
■High noise immunity: 0.45 VDD(typ.)
■Low power TTL compatibility: fan out of 2 driving 74L or 1 driving 74LS
■Parallel jam inputs
■Binary or BCD decade up/down counting

简介

CD4029属于集成电路（IC）的计数器除法器。由制造生产的CD4029计数器，除法器计数器和除法器 IC 是数字逻辑器件，可对输入发生的逻辑转换进行计数，然后使用多个并行输出重新发送累加的计数，和/或生成单个输出信号转换，从而对应用某些整数数量输入信号转换进行响应。除了简单的事件计数，它们还可用于各种频率合成应用。