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  1. How does TTL serial work? - Electrical Engineering Stack Exchange

    Point of terminology: "TTL serial" is a severely over-broad term, " (point-to-point) asynchronous serial (at TTL levels)" seems to be what you're asking about. (Though that's still probably …

  2. 问一下大家什么是USB转TTL? - 知乎

    Aug 15, 2020 · USB转TTL是一种 串口通信 转换器,它可以将USB接口转换为TTL串口通信接口。 TTL串口通信是一种常见的数字通信方式,常用于单片机、传感器等设备之间的数据传输。 通 …

  3. uart、串口、COM口、USB口,ttl,rs232,rs485这几个到底是啥关 …

    1. TTL电平 TTL指双极型三极管逻辑电路(transistor transistor logic),这种信号0对应0V,1对应3.3V或5V,与单片机、MCU、SOC的IO电平兼容。 不过实际也不一定是TTL电平,因为现在 …

  4. digital logic - What is meant by TTL in this context? - Electrical ...

    Jun 22, 2023 · TTL requires that logic 1 input must be at least 2V, and TTL drivers are designed to guarantee that. That is far short of what this driver requires to register as logic 1.

  5. USART, UART, RS232, USB, SPI, I2C, TTL, etc. what are all of these …

    Aug 14, 2012 · TTL mean Transistor-Transistor-Logic and has its level for logical zero near 0V and for logical one near 5V. Often any 5V logic is called TTL, although most circuits nowadays …

  6. TTL to RS485 using MAX485 - Capacitor voltage requests

    Feb 18, 2023 · I need to implement a TTL to RS485 converter into an home made project and searching by Google I found this module with related schematics: Could you help me by …

  7. 带你一分钟了解编码器基础知识 - 知乎

    Mar 8, 2024 · 此外,增量编码器的信号输出电平标准也是多样的,常见的有TTL、HTL、PNP和NPN等。 TTL和HTL是常见的电平标准,其中TTL为长线差分驱动,而HTL也称为推拉式或推 …

  8. 既然IP数据包有TTL跳数限制,那它是如何实现远距离(横跨大半个 …

    既然IP数据包有TTL跳数限制,那它是如何实现远距离(横跨大半个地球)通信的? 首先对问题进行补充解释一下:IP数据包有TTL跳数限制,跳数变为零时数据包就被丢弃。 那么问题来了, …

  9. ttl - Extending signal duration - Electrical Engineering Stack …

    Jun 22, 2022 · TTL solution with active low input and output. R and C are calculated for 2ms output pulse width. simulate this circuit – Schematic created using CircuitLab

  10. transistors - TTL, Totem Pole vs. Open Collector Output - Electrical ...

    Mar 21, 2018 · What is the difference of these two ttl nand gates? What is a totem pole, what does it do and what is it used for? When connecting multiple ttl logic gates together is it better …