74HC 系列计数器和移位寄存器，NXPNXP 系列 74HC 系列 CMOS 逻辑计数器和移位寄存器。 74HC 系列使用硅门 CMOS 技术，实现与 LSTTL 系列类似的工作速度，但标准 CMOS 集成电路功耗降低。
Do you have multiple logical states? Implement this counter shift register by Semiconductors in order to switch and maintain states. With a 3-state output, this is power management at its best. This counter shift register has an operating temperature range of -40 °C to 125 °C. This product comes packaged in bulk, so the parts will be stored loosely. This device has a typical operating supply voltage of 5 V. Its minimum operating supply voltage of 2 V, while its maximum is 6 V.