Infra Red Received coding for received 8 bit address and data code-Infra Red Beijing coding for received eight bi t address code and data

74LS49 是一个BCD码——7段LED显示译码器，它具有四位二进制输入信号bi(3)到bi(0）和熄灭信号b1_n，以及7段LED驱动信号a,b,c,d,e,f,g-74LS49 is a BCD code- 7 segment LED display decoder, it has four binary input signal bi (3) bi (0) and extinguished signal b1_n, and 7-segment LED drive signals a, b

编译原理 词法分析程序 实验课-compiler