SN74HC393 - 双路 4 位二进制计数器

SN74HC393是TI德州仪器公司的一款计数器/算术/奇偶校验功能产品，SN74HC393是双路 4 位二进制计数器，本站介绍了SN74HC393的封装应用图解、特点和优点、功能等，并给出了与SN74HC393相关的TI元器件型号供参考。

SN74HC393 - 双路 4 位二进制计数器 - 计数器/算术/奇偶校验功能 - 特殊逻辑 - 德州仪器

产品描述

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. N-bit binary counters can be implemented with each package, providing the capability of divide by 256. The ’HC393 devices have parallel outputs from each counter stage so that any submultiple of the input count frequency is available for system timing signals.

产品特性

Wide Operating Voltage Range of 2 V to 6 V
Outputs Can Drive Up To 10 LSTTL Loads
Low Power Consumption, 80-µA Max ICC
Typical tpd = 13 ns
±4-mA Output Drive at 5 V
Low Input Current of 1 µA 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 Percent

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