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Frequent Questions
  • [FAQ] With Open-Drain outputs, can I ...use them to shift a logic voltage level? ...connect the outputs directly together? ...force a voltage node to zero?

    Emrys Maier
    Emrys Maier
    Other Parts Discussed in Thread: SN74LVC1G123 FAQ: Logic and Voltage Translation > Output Parameters >> Current FAQ The answer to all three questions is "yes" - these are the three primary uses of open-drain outputs on logic devices. Much of this also…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] Sysconfig known issue when using custom boards – workaround for SimpleLink CC13x2_26X2 SDK v. 3.30.00.xx or 3.40.00.xx

    Katie Pier
    Katie Pier
    Other Parts Discussed in Thread: SYSCONFIG Overview: SysConfig provides extensive support for working with a board including the ability to remove all board constraints and work at the device package level. However, using this feature may cause unexpected…
    • over 6 years ago
    • Sub-1 GHz
    • Sub-1 GHz forum
  • [FAQ] Trapezoidal Control of BLDC Motors Using Hall Effect Sensors on C2000 Controller

    MatthewPate
    MatthewPate
    Other Parts Discussed in Thread: TMS320F28069 , TMS320F28035 , TMS320F28027 , CONTROLSUITE , DRV8312 What are the resources to implement Trapezoidal Control of BLDC Motors with Hall Effect Sensors using C2000 MCUs? Best, Matthew
    • over 6 years ago
    • C2000™︎ microcontrollers
    • C2000 microcontrollers forum
  • [FAQ] Can I connect the Cext pin to ground on a monostable multivibrator?

    Emrys Maier
    Emrys Maier
    Other Parts Discussed in Thread: SN74LV221A , SN74LVC1G123 , SN74LV123A , SN74221 , SN74LS221 FAQ: Logic and Voltage Translation > Monostable Multivibrators >> Current FAQ For the majority of MMV devices, y es, the Cext pin can be grounded. The Cext…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] How do you determine the output pulse width and the 'K' value for a monostable multivibrator?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Monostable Multivibrators >> Current FAQ The output pulse width (tw) is determined with the following equation: tw = K * R * C with R := external timing resistor, C := external timing capacitor, K := timing constant…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] Debugging and Fixing Overshoot in Switching Events

    Kate Dickson
    Kate Dickson
    Other Parts Discussed in Thread: TMUX1247 , TMUX1237 Parasitic inductance due to the length of PCB traces can cause overshoot and ringing during switching events. The output voltage may briefly exceed the expected output voltage value, due to overshoot…
    • over 6 years ago
    • Switches & multiplexers
    • Switches & multiplexers forum
  • [FAQ] How do I terminate an unused channel of a monostable multivibrator (one shot)?

    Emrys Maier
    Emrys Maier
    Other Parts Discussed in Thread: SN74LV221A FAQ: Logic and Voltage Translation > Monostable Multivibrators >> Current FAQ Unused channels for a logic monostable multivibrator (MMV) such as the SN74LV221A should be terminated such that: (1) All inputs…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] How does a monostable multivibrator (one shot) work?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Monostable Multivibrators >> Current FAQ The above functional block diagram shows generally how a monostable multivibrator (MMV, or one-shot) works. Not all of them have every part shown, but this is the most common…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] What's the difference between TTL and 5V CMOS logic?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Logic Technology >> Current FAQ It's very common for people to refer to "TTL logic" and to actually mean "5V logic" -- but how are they different? The key difference is in the input and output voltages. This graphic…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] Where can I find J721e SoC specific chapter of TISCI User Guide (06.01.00 Release)?

    Vishal Mahaveer
    Vishal Mahaveer
    The public documentation of TISCI user guide is hosted at http://downloads.ti.com/tisci/esd/latest/ . But current documentation hosted in public does not have the J721e specific chapter. Where can I find this information?
    • Answered
    • over 6 years ago
    • Processors
    • Processors forum
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