SN74HC393D集成电路（IC）的计数器除法器规格书PDF中文资料

SN74HC393D属于集成电路（IC）的计数器除法器。由德州仪器制造生产的SN74HC393D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。

1 Features

• Wide operating voltage range of 2V to 6V

• Outputs can drive up to 10 LSTTL loads

• Low power consumption: 80μA max ICC

• Typical tpd = 13ns

• ±4mA output drive at 5V

• Low input current of 1μA max

• Dual 4-bit binary counters with individual clocks

• Direct clear for each 4-bit counter

• Can significantly improve system densities by

reducing counter package count by 50%

2 Description

The ’HC393 devices contain eight flip-flops and

additional gating to implement two individual 4-bit

counters in a single package.