(74hc245+74hc154)16×16LED点阵汉字显示仿真与单片机源码51单片机.zip
2022-11-11 14:04:39
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The 74HC245 is a high-speed Si-gate CMOS
device and is pin compatible with Low-Power
Schottky TTL (LSTTL). The 74HC245 is an octal
transceiver featuring non-inverting 3-state bus
compatible outputs in both send and receive
directions. The 74HC245 features an output
enable input (OE) for easy cascading and a
send/receive input (DIR) for direction control. OE
controls the outputs so that the buses are
effectively isolated. The 74HC245 is similar to the
74HC640 but has true (non-inverting) outputs
2022-05-05 11:48:27
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利用板上的245输入电路，用总线方式读入开关状态。用单步的方式执行程序，改变开关状态，观察读回的值。
2022-03-25 11:41:37
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LED显示屏常用芯片简介(74HC138,74HC245,74HC595,4953,TB62726)
2021-09-04 11:58:41
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本课程设计的主题是电子时钟，其基础部分是一个数字钟。电路系统由芯片DS1302组成。利用按键可对时间及闹玲进行设置，并可显示闹玲时间。当闹玲时间到蜂鸣器发出声响，按停止键使可使闹玲声停止。
2021-05-31 08:30:18
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