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Description: 74ls240的器件数据手册，是英文的
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Size: 91618 |
Author: lvjinwen |
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Description: 18B20数字温度，利用89C52单片机P3.3作为数据口，通过74LS240、273作显示驱动口，实时测试温度。
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Size: 2188 |
Author: 陆楷 |
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Description: 单片机AD/DA转换的原理图是PDF格式的快下载哦-SCM AD/DA conversion diagram in PDF format is fast download!
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Size: 66560 |
Author: qxxskycool |
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Description: 74ls240的器件数据手册，是英文的 -74ls240 device data manual is in English 74ls240 the device data manual is in English
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Size: 91136 |
Author: |
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Description: 18B20数字温度，利用89C52单片机P3.3作为数据口，通过74LS240、273作显示驱动口，实时测试温度。-Digital Temperature 18B20, 89C52 Singlechip P3.3 use as a data port, through the 74LS240, 273 for the display driver mouth, real-time test temperature.
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Size: 2048 |
Author: 陆楷 |
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Description: 系统上电复位后，系统就处于等待状态，当K0到K7有按键动作时，单片机会将动作的按键号0到7串行发送到串并转换芯片74LS164中，芯片74LS164使74LS240驱动数码管显示按键所对应的按键号。-System power-on reset, the system in a wait state, when there are key K0 to K7 action, single-chip will be the key actions 0-7 serial number is sent to the SERDES 74LS164 chip, the 74LS240 driver chips 74LS164 make digital tube shows the corresponding button number keys.
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Size: 130048 |
Author: sunbin |
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Description: 12位DA：AD7541，基于51单片机证实可用-12位DA：AD7541，基于51单片机
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Size: 15360 |
Author: cjy |
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Description: Noise Generator Schematic using ATmega128 and AD7541 dac , AD9854 dds is added t-Noise Generator Schematic using ATmega128 and AD7541 dac , AD9854 dds is added too...
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Size: 209920 |
Author: borhan |
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Description: 通过PA口接8个开关K1～K8，开关向上为输入高电平，即逻辑‘1’。向下为输入低电平，即逻辑‘0’。PB口通过74LS240（8路，反相）接8个发光二极管的阴极，PB口输出‘1’，经74LS240反相输出‘0’，驱动发光二极管发光（参看实验一，图1• 1）。
从PA口读入8位开关的状态送PB口显示，拨动K1～K8，PB口上接的8个发光二极管L0～L7对应显示K1～K8的状态。
-I pick through the PA 8 switch K1 ~ K8, switch up the input high, the logic ' 1 ' . Down input low, that the logical ' 0 ' . PB export through 74LS240 (8 Lu, RP) received eight LED cathode, PB port output ' 1 ' , by 74LS240 inverting output ' 0' , drive light emitting diodes (see experiment 1, Figure 1 • 1). PA I read from the 8-bit switch state to send PB I showed Slide K1 ~ K8, PB 8 port on the connected light-emitting diode display the corresponding L0 ~ L7 K1 ~ K8 state.
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Size: 107520 |
Author: 林小小 |
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Description: 74ls240，and you can use it to program
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Size: 851968 |
Author: ajin |
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