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RSS订阅零死角玩转stm32-高级
野火stm32光盘学习资料。一步一步学会stm32,真的好用哦。
SDIO、FatFs、MP3、液晶触摸画板、液晶显示、模拟U盘、以太网、wifi、摄像头。
2015-01-20
零死角玩转stm32-中级篇
野火stm32光盘学习资料。一步一步学会stm32,真的好用哦。
串口、ADC、RTC、IIC、SPI、PWM、CAN、2.4G无线、重力感应/三轴加速
2015-01-20
74HC125.PDF
三态四总线缓冲门。
The 74HC125; 74HCT125 is a quad buffer/line driver with 3-state outputs controlled by the output enable inputs (nOE). A HIGH on nOE causes the outputs to assume a high impedance OFF-state. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.
2015-01-20
74HC244.PDF
8同相三态缓冲器驱动器。可用于增大驱动电流的情况，比如单片机输出驱动数码管电流不够，就可利用74HC244来驱动数码管，增加亮度。
The 74HC244; 74HCT244 is an 8-bit buffer/line driver with 3-state outputs. The device can be used as two 4-bit buffers or one 8-bit buffer.
The device features two output enables (1OE and 2OE), each controlling four of the 3-state outputs. A HIGH on nOE causes the outputs to assume a high-impedance OFF-state. Inputs include clamp diodes that enable the use of current limiting resistors to interface inputs to voltages in excess of VCC.
2015-01-20
74HC14.PDF
6路施密特触发反相器。
The 74HC/HCT14 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL).
They are specified in compliance with JEDEC standard no. 7A.
The 74HC/HCT14 provide six inverting buffers with Schmitt-trigger action. They are capable of transforming slowlychanging input signals into sharply defined, jitter-free output signals.
2015-01-20
74HC08.PDF
四组两输入与门。
The 74HC/HCT08 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL(LSTTL). They are specified in compliance with JEDEC standard no. 7A. The 74HC/HCT08 provide the 2-input AND function.
2015-01-20
74HC00.pdf
四组双路与非门。
The 74HC00; 74HCT00 are high-speed Si-gate CMOS devices that comply with JEDEC standard no. 7A. They are pin compatible with Low-power Schottky TTL (LSTTL).
The 74HC00; 74HCT00 provides a quad 2-input NAND function.
2015-01-20
74HC08 pdf
四组双输入与门。
The 74HC/HCT08 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL(LSTTL). They are specified in compliance with JEDEC standard no. 7A. The 74HC/HCT08 provide the 2-input
AND function.
2015-01-20
74HC04.pdf
6组非门。
The 74HC/HCT04 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL(LSTTL). They are specified in compliance with JEDEC standard no. 7A. The 74HC/HCT04 provide six inverting buffers.
2015-01-20
74HC20 pdf
两组四输入与非门。
The 74HC20; 74HCT20 is a dual 4-input NAND gate. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.
2015-01-20
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