Answered

• CD4521B: Wrong RC Oscillator Circuit in Datasheet

  

  Jonathan Mi

  Resolved

  Part Number: CD4521B CD4521B provides RC oscillator as follows: However, Rs is not correctly connected. Circuit should be as follows for RC oscillator to work:

  • Resolved

  • over 3 years ago
  • Logic
  • Logic forum
Answered

• CD4521B: Crystal stays High, no oscillation

  

  Daniel Ventura

  Resolved

  Part Number: CD4521B Other Parts Discussed in Thread: SN74LVC1GU04 , SN74LVC1G80 Hello, I was wondering if we could get some help, as we are using your CD4521B as a frequency divider, but our crystal is not oscillating for a strange reason. The Crystal…

  • Resolved

  • over 3 years ago
  • Logic
  • Logic forum

• CD4521B: Usage of CD4521B

  

  Greg Kooser

  TI Thinks Resolved

  Part Number: CD4521B I find the datasheet for CD4521B insufficient in understanding how it functions. Is there any other data or application information that will help me understand it better? Specifically, I am trying to design a circuit that will…

  • over 6 years ago
  • Logic
  • Logic forum

• CD4521B: Clarification on datasheet

  

  Roland Melad

  TI Thinks Resolved

  Part Number: CD4521B I am referring to the CD4521B (CMOS 24 stage Frequency Divider) TI Datasheet Copyright 2003 (Page 3-286), figures 10 and 11 and I have the following questions: Q1. Does the oscillator frequency calculation formula given under fig…

  • over 5 years ago
  • Logic
  • Logic forum

• CD4521B: cd4521

  

  mustafa istanbullu

  TI Thinks Resolved

  Part Number: CD4521B Hi... I need pspice model of cd4521 for simulation. how can i find it? thank you.

  • over 7 years ago
  • Logic
  • Logic forum

• RE: CD4521B

  

  Aaron Goodson

  Hi, We are closing this post due to inactivity. Please feel free to post again if you have any other questions. Regards, Aaron

  • over 8 years ago
  • Logic
  • Logic forum
Answered

• RE: NE555: circuit not working

  

  Ron Michallick

  Resolved

  Ed, I found three logic oscillator with multi stage ripple counters. This will make long timing period possible with smaller capacitors CD4521B CD4541B CD4060B All these will work at 10V

  • over 8 years ago
  • Clock & timing
  • Clock & timing forum

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