MC74HC393集成电路（IC）的计数器除法器规格书PDF中文资料

MC74HC393属于集成电路（IC）的计数器除法器。由安森美半导体制造生产的MC74HC393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。

Dual 4−Stage Binary Ripple Counter High−Performance Silicon−Gate CMOS

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 parallel outputs from each counter stage. A ÷ 256 counter can be obtained by cascading the two binary counters.

特性 Features

• Output Drive Capability: 10 LSTTL Loads

• Outputs Directly Interface to CMOS, NMOS, and TTL

• Operating Voltage Range: 2.0 to 6.0 V

• Low Input Current: 1 μA

• High Noise Immunity Characteristic of CMOS Devices

• In Compliance with the JEDEC Standard No. 7A Requirements

• Chip Complexity: 236 FETs or 59 Equivalent Gates

• Pb−Free Packages are Available