EngineersGarage

  • Engineers Garage Main Site
  • Visit our active EE Forums
    • EDABoard.com
    • Electro-Tech-Online
  • Projects & Tutorials
    • Circuits
    • Electronic Projects
    • Tutorials
    • Components
  • Digi-Key Store
    • Cables, Wires
    • Connectors, Interconnect
    • Discrete
    • Electromechanical
    • Embedded Computers
    • Enclosures, Hardware, Office
    • Integrated Circuits (ICs)
    • Isolators
    • LED/Optoelectronics
    • Passive
    • Power, Circuit Protection
    • Programmers
    • RF, Wireless
    • Semiconductors
    • Sensors, Transducers
    • Test Products
    • Tools
  • Advertise
You are here: Home / Replies / Hi, Controller works o

Hi, Controller works o

|

Microcontroller › 8051 › How to make an alphabetic keypad using 8051 microcontroller (AT89C51) › Hi, Controller works o

May 6, 2014 at 3:46 am #11685
SHAH DISHANT H.
Participant

Hi,

 

Controller works o crystal frequency which decides operating speed of it. PIN18 and 19 are the two pins at which we have to connect crystal of dsired frequency.

 

Both pins should be connected with 20th pin (ground) via a capacitror of 33pf.

RSS Recent Posts

  • Electronic board faulty?!? May 12, 2025
  • Is there a Power Bank that can also be charged with electricity? May 12, 2025
  • applying solder paste from a jar May 11, 2025
  • Did a Buyer Kill My Amp? May 11, 2025
  • An Update On Tarrifs May 11, 2025

Stay Up To Date

Newsletter Signup
EngineersGarage

Copyright © 2025 WTWH Media LLC. All Rights Reserved. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media
Privacy Policy | Advertising | About Us

Search Engineers Garage

  • Engineers Garage Main Site
  • Visit our active EE Forums
    • EDABoard.com
    • Electro-Tech-Online
  • Projects & Tutorials
    • Circuits
    • Electronic Projects
    • Tutorials
    • Components
  • Digi-Key Store
    • Cables, Wires
    • Connectors, Interconnect
    • Discrete
    • Electromechanical
    • Embedded Computers
    • Enclosures, Hardware, Office
    • Integrated Circuits (ICs)
    • Isolators
    • LED/Optoelectronics
    • Passive
    • Power, Circuit Protection
    • Programmers
    • RF, Wireless
    • Semiconductors
    • Sensors, Transducers
    • Test Products
    • Tools
  • Advertise