第八章单元测试
- There are 8 analog input channels that be connected to the ADC0809. （ ）
- How many bits are required to select which analog channel is active on the ADC0809? （ ）
- In order to use the DAC0832, an external operational amplifier must be connected. （ ）
- How many port pins would be used to connect a 6*4 matrix keypad to an 8051 (excluding the interrupt input)? （ ）
- What are the common forms that the internal wiring of the 7-segment display can take?( ）
A:对 B:错
答案:对
A:3 B:4 C:2 D:8
A:对 B:错
A:4 B:10 C:24
D:6
A:Static display B:Dynamic display C:Common cathode
---------------------------------------------------------------------------------------------------------------------------------
D:Common anode
温馨提示支付 ￥3.00 元后可查看付费内容,请先翻页预览!
