Answered

• SN74AHC123A: About the usage of leading edge detector

  

  ziyu liu

  Resolved

  Part Number: SN74AHC123A Hi team, I'm trying to use the SN74AHC123ADR as a leading edge detector as the guide instructs, just like the following figure However, I can only get the output pulse which has a min width of 53ns, while I look up the datasheet…

  • Resolved

  • over 1 year ago
  • Logic
  • Logic forum

• SN74AHC123A: tw > 20ms

  

  Roy Chou1

  TI Thinks Resolved

  Part Number: SN74AHC123A Hi Team, I want to check spec with you. I find there is no max value showing on datasheet. If our tw need to > 20ms which means that we don't need to connect Rext/Cext, is it correct? Thanks. Regards, Roy

  • over 3 years ago
  • Logic
  • Logic forum

• SN74AHC123A: Need to found same function replace 74HC123

  

  Rock Shao

  TI Thinks Resolved

  Part Number: SN74AHC123A Other Parts Discussed in Thread: CD74HCT123 , , CD74HC123 Hi, Teams, Please help to double TI has the same as the 74HC123, and I have checked the TI family, tw = K * RT * CT; need K=0.45 and tw<5ns. CD74HCT123: K=0.45…

  • over 2 years ago
  • Logic
  • Logic forum

• SN74AHC123A: Spice model

  

  Henrik Brenning

  Part Number: SN74AHC123A Is there a spice model for the SN74AHC123A? I have not been able to find one, but I would appreciate getting one to test out our circuits.

  • over 3 years ago
  • Logic
  • Logic forum
Answered

• SN74AHC123A: SN74AHC123A TSSOP-16 missing pinout information in technical documentation

  

  user6263518

  Resolved

  Part Number: SN74AHC123A Hi, I have some SN74AHC123APWR that I am prototyping with, but I can't find a source from ti.com that shows what the pins are. Have looked through most of the technical documents linked on product page. Shouldn't this…

  • Resolved

  • over 5 years ago
  • Logic
  • Logic forum
Answered

• SN74AHC123A: Tw Design calculation and Observed output is not matching

  

  Sandeep NS

  Resolved

  Part Number: SN74AHC123A Hi, I am designed a timing circuit with SN74AHC123A Requirements are Tw=22uS, VCC=3.3V As per the calculation I have selected 1nF(1000pF) and 22.1K resistance. But when I am observing , the output is around 50uS…

  • Resolved

  • over 4 years ago
  • Logic
  • Logic forum
Answered

• SN74AHC123A: Higher Accuracy Pulse Width

  

  Ryan.Bishop

  Resolved

  Part Number: SN74AHC123A Hello, I am trying to design a circuit that receives a pulse on the input, waits 2us, and then generates a pulse on the output. I wanted to do this with the SN74AHC123A, but we need at least 5% tolerance on the pulse width…

  • Resolved

  • over 6 years ago
  • Logic
  • Logic forum
Answered

• SN74AHC123A: One Cycle Pulse Generator

  

  Ron Michallick

  Resolved

  Part Number: SN74AHC123A Hi all, I want to make a one cycle pulse generator with an LM555 timer IC. The pulse timing after powering up the chip is: high (300ms) --> low (1s) --> high (continue until power off). Help me make a circuit with the LM555…

  • Resolved

  • over 7 years ago
  • Logic
  • Logic forum

• SN74AHC123A: K Value Over Cap and Temp

  

  Jacob Olstad

  TI Thinks Resolved

  Part Number: SN74AHC123A Other Parts Discussed in Thread: SN74LVC1G123 Hi, Looking through the datasheet for the SN74AHC123A figure 9 shows the K value over capactiance and states that values of .001uF or greater equales a K value of 1 but the graph…

  • over 7 years ago
  • Logic
  • Logic forum

• SN74AHC123A: Relation for tMIR and tw

  

  Satoshi

  TI Thinks Resolved

  Part Number: SN74AHC123A About SN74AHC123 datasheet page-10, Is tMIR require spec more than tMIR = 0.3 × tw, correct? For example, tw: 500ms ⇒ tMIR: 150ms. In that case, input frequency is less than 6.6Hz required, is it correct? I think that it…

  • over 8 years ago
  • Logic
  • Logic forum

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