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[FAQ] [H] Input Parameters

Albert Xu1
Mastermind 31355 points

Use Cases & Part
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Monostable Multivibrators

Voltage Translators

 Input Parameters
 Output Parameters
Power and Thermals Timing Parameters Logic Technology Quality and Manufacturing 
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  1. [FAQ] Is the reliability of a logic device affected by applying an input voltage larger than the supply (VCC)?
  2. [FAQ] What is the impedance of the device's input pin? Is it CMOS or bipolar device?
  3. [FAQ] Is it necessary to have pull-down( or pullup) resistor on the OE pin or can I connect it directly to TXS/ TXB supply?
  4. [FAQ] Can I connect the OE pin to Vccb supply pin instead of Vcca for TXS, TXB devices?
  5. [FAQ] What should be done with unused I/O pins of the level translator devices?
  6. [FAQ] Why does my device not switch at VIH or VIL?
  7. [FAQ] How do I size pull-up or pull-down resistors?
  8. [FAQ] How do I terminate any unused channels of a logic device?
  9. [FAQ] How does a slow or floating input affect a CMOS device?
  10. [FAQ] Can the input voltage (Vi) to my logic device be higher than the supply voltage (Vcc)?
  11. [FAQ] What is the TXS device internal resistor variation/ tolerance
  12. [FAQ] What is a floating input or floating node?
  13. [FAQ] What method is best used for estimating specification values between those given in the datasheet?
  14. [FAQ] What are the performance specifications of the HCS logic family at 3.3V operation?
  15. [FAQ] Do I still need pull-up/pull-down resistors with bus-hold circuitry?