Answered

• RE: CD74HC4538: How does the output of cd74hc4538 be a standard square pulse without jagged?

  

  Lai Hai

  Resolved

  Thanks you for your support. I will try with a ferrite bead.

  • over 6 years ago
  • Logic
  • Logic forum

• CD74HC4538: K factor impact

  

  Aaron Spaete

  TI Thinks Resolved

  Part Number: CD74HC4538 I am hoping that you could shed some light on the following questions regarding the CD74HC4538. Does the “K FACTOR” has an effect on the threshold τ? The datasheet has no mention of K factor anywhere but the graphs on page…

  • over 5 years ago
  • Logic
  • Logic forum

• CD74HC4538: IC geting short VCC to GND

  

  Narayan P Sangale

  TI Thinks Resolved

  Part Number: CD74HC4538 Other Parts Discussed in Thread: LM2672 Dears, We are using IC CD74HC4538M, IC SN74HCT125D and IC SN65HVD251D in our designs. We are facing issue of IC getting short VCC to GND (VCC and GND pins are observed shorted together…

  • over 6 years ago
  • Logic
  • Logic forum

• CD74HC4538: High Level Input Voltage

  

  Went Cao

  TI Thinks Resolved

  Part Number: CD74HC4538 Dear all In the datasheet, below picture is High Level Input Voltage, but when VCC=5V, what is the MIN value of VIH ?

  • over 6 years ago
  • Logic
  • Logic forum

• CD74HC4538: Latch-up from EMP?

  

  Jim Martz

  TI Thinks Resolved

  Part Number: CD74HC4538 Other Parts Discussed in Thread: CD74HCT4538 , CD54HC4538 Hello, I am using an CD74HC4538E in a circuit in an environment with EMP events. After an EMP event about 50% of the time the Q output drops to 1.5v, and does not return…

  • over 8 years ago
  • Logic
  • Logic forum
Answered

• CD74HC4538-Q1: Rapid-Power-Down Protection Circuit

  

  Basil

  Resolved

  Part Number: CD74HC4538-Q1 Other Parts Discussed in Thread: TINA-TI Dear Team, could you please support with following question: As per DS, Fig.6, adding a current limiting resistor in series to Cx can be used to protect the device against quick capacitor…

  • Resolved

  • over 8 years ago
  • Logic
  • Logic forum

• CD74HC4538-Q1 Output Pulse Width and SPICE Model

  

  Jared Becker

  TI Thinks Resolved

  Other Parts Discussed in Thread: CD74HC4538-Q1 , SN74LV123A-Q1 , SN74LV221A , SN74LV123A Hi team, I am reviewing the Output Pulse Width provided by CD74HC4538-Q1 for below configurations. The datasheet contains the K factor and time constant for few…

  • over 9 years ago
  • Automotive (Read-Only)
  • Automotive Forum (Read-Only)

• SN74LV123A: K factor determination

  

  Guenter Fettig

  TI Thinks Resolved

  Part Number: SN74LV123A Other Parts Discussed in Thread: CD74HC4538 Is there a capability to determine or simulate K factor for dedicated supply Voltage and RC combination ? Same question relating to CD74HC4538

  • over 2 years ago
  • Logic
  • Logic forum

• CD74HC123: Maximum CX value & powerdown considerations

  

  John Wright

  TI Thinks Resolved

  Part Number: CD74HC123 Other Parts Discussed in Thread: CD74HC4538 I have designed a circuit using the CD74HC4538 using timing values or 15M and 22uF to give a little under 4 minutes duration (not critical, anything between 3.5 and 4 mins is fine) . The…

  • over 4 years ago
  • Logic
  • Logic forum
Answered

• CD54HC4538: Output state for (Rn=H,A=L,Bn=H) not given in truth table

  

  stevenh

  Resolved

  Other Parts Discussed in Thread: CD74HC4538 , CD54HC4538 Hello, Please see CD54HC4538 truth table below and datasheet located at www.ti.com/.../cd74hc4538.pdf. What is the Q and Qn for the following input conditions. Rn A Bn Q Qn H L H ? ? …

  • Resolved

  • over 9 years ago
  • Logic
  • Logic forum

Didn't find what you are looking for? Post a new question.