January 1988 MM54HC00/MM74HC00 Quad 2-Input NAND Gate General Descr iption These NAND gates utilize advanced silicon-gate CMOS technology to achieve operating speeds similar to LS-TTL gates with the low power consumption of standard CMOS

串口控件是一个非常好用的控件,对于开发工作非常有用. -port to COM and usb spi ttl.