TI 的 SN74HC393 是一款 双通道 4 位二进制计数器。 查找参数、订购和质量信息.

74hc393是双4位二进制计数器。 你用八分频电路，将清零脚2脚，12脚接低电平。 将CP信号从1脚输入，从5脚输出就是八分频了。

The 74HC/HCT393 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A. The 74HC/HCT393 are 4-bit binary ripple counters with separate clocks (1CP and 2 CP) and master reset (1MR and 2MR) inputs to each counter.

74HC393D,653由Nexperia (安世)设计生产，立创商城现货销售，正品保证，参考价格￥0.6701，封装为SOIC-14。 商城还提供74HC393D,653专业中文资料、详细参数、引脚图、PCB焊盘图，典型应用图，Datasheet数据手册等资料查询和免费下载。 参数：逻辑类型：2分频；工作电压：2V~6V；元件数：2；触发沿：下降沿；复位方式：异步；计数速率：107MHz；工作温度：-40℃~+125℃。

The ’HC393 and ’HCT393 are 4-stage ripple-carry binary counters. All counter stages are primary-operative flip-flops. The state of the stage advances one count on the negative transition of …

The 74HC393; 74HCT393 is a dual 4-stage binary ripple counter. Each counter features a clock input (nCP), an overriding asynchronous master reset input (nMR) and 4 buffered parallel outputs (nQ0 to nQ3). The counter advances on the HIGH-to-LOW transition of nCP.

The MC74HC393A is identical in pinout to the LS393. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs. This device consists of two independent 4−bit binary ripple counters with …

2019年12月26日 · 本文介绍了一种使用74hc393芯片设计数字钟的方法，包括信号发生、六十进制和二十四进制显示以及校时模块的设计。通过555定时器和74hc393等组件，实现了23小时59分59秒的计时功能，并具备校时功能。

Load Circuit and Voltage Waveforms. The ’HC393 devices contain eight flip-flops and additional gating to implement two individual 4-bit counters in a single package. These devices comprise two independent 4-bit binary counters, each having a clear (CLR) and a clock (CLK) input.

SN74HC393N由TI (德州仪器)设计生产，立创商城现货销售。 SN74HC393N价格参考￥3.52。 TI (德州仪器) SN74HC393N参数名称：逻辑类型：2分频；计数方向：向上计数器；工作电压：2V~6V；元件数：2；触发沿：下降沿；复位方式：异步；计数速率：36MHz；工作温度：-40℃~+85℃。 下载SN74HC393N中文资料、引脚图、Datasheet数据手册，有计数器/分频器详细引脚图及功能的应用电路图电压和使用方法及教程。