Question

我想请教CD74HC154EN芯片功能介绍

我有12块CD74HC154EN芯片，我是初学者，想用芯片自己制作些电子器件，不知道CD74HC154EN能做些什么实验？百度的资料都是英文我不能理解透。我还有AT89C51芯片多块（有高频烧写器），不知能联合起制作吗？希望能得到电子爱好者的请教谢谢！！

Answer 1

The ’HC154 and ’HCT154 are 4-to-16 line decoders/demultiplexers with two enable inputs, E1 and E2. A High on either enable input forces the output into the High state. The demultiplexing function is performed by using the four input lines, A0 to A3, to select the output lines Y0\ to Y15\, and using one enable as the data input while holding the other enable low.
特性 Two Enable Inputs to Facilitate Demultiplexing and Cascading Functions Fanout (Over Temperature Range) Standard Outputs . . . . . . 10 LSTTL Loads Bus Driver Outputs . . . 15 LSTTL LoadsWide Operating Temperature Range . . . –55°C to 125°C Balanced Propagation Delay and Transition Times Significant Power Reduction Compared to LSTTL Logic ICs HC Types 2V to 6V Operation High Noise Immunity: NIL= 30%, NIH = 30% of VCC at VCC = 5VHCT Types 4.5V to 5.5V Operation Direct LSTTL Input Logic Compatibility, VIL = 0.8V (Max), VIH = 2V (Min) CMOS Input Compatibility, Il 1�0�8A at VOL, VOH