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ls192
- vhdl,十进制加减计数器，输出计数序列信号-vhdl, decimal addition and subtraction counter, the output count sequence signal
maiobiao
- 具有加、减计数以及置数报警功能的计数器，采用三个数码管显示，555产生1秒的脉冲，三块74ls192十进制计数器级联为三位数计数器。-Have add, subtract count, and buy several alarm function of counter, using three digital pipe display, 555 produce 1 second pulse, three pieces of 74 ls1
shumaguan
- 基于编码器和译码器的数码管显示，数字芯片74ls48和74ls192，还有数码管-Based on the encoder and decoder of digital tube display, digital chip 74 ls48 and 74 ls192, and digital tube
add-plus
- 实现计数器加法、减法、清零电路。用7448、74ls192实现，可以仿真成功，适用于初学者。-Realization counter addition, subtraction, clear circuit. By 7448,74 ls192 achieve success can be simulated, for beginners.
The-buzzer
- 该抢答器主要运用到了编码器，译码器和锁存器：它采用74LS148来实现抢答器的选号，采用74LS279芯片实现对号码的锁存，采用74LS192实现十进制的减法计数，采用555芯片产生秒脉冲信号来共同实现倒计时功能，采用74LS121单稳态芯片来实现报警信号的输出。-The buzzer is mainly applied to the encoder, decoder and latch: it USES 74 ls148 to ach