Timeline for Which logic families interpret a floating input as a definite value?
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jun 1, 2017 at 9:22 | comment | added | Whit3rd | Connecting directly to +5V had the unfortunate effect of killing some TTL chips, because the power supply could have transients that exceeded the voltage tolerance of the inputs. Connection through a current-limiting resistor, often 1kOhm, was recommended. | |
| May 31, 2017 at 21:21 | comment | added | Peter Mortensen | Re: "...unused inverter...": Is that the "one generator"? Why not connect the input directly to the (local) Vcc (that should be sufficiently decoupled)? Is there be some extra capacitance inside the chip that would give a PSRR significantly higher than 0 dB? | |
| May 31, 2017 at 13:20 | vote | accept | fadedbee | ||
| May 31, 2017 at 13:20 | |||||
| May 31, 2017 at 12:02 | history | answered | Olin Lathrop | CC BY-SA 3.0 |