Jump to content
ELFORUM - Forumul electronistilor
mircang9

circuitul integrat "misterios" MB104I4D WFW 883 cu 6 pini.

Recommended Posts

Am o placa care are doua 2xMB104I4D. Am dat cautare pe net dar n-am gasit nici un datasheet. Pe placa sunt 7 microcontrollere ATMEL si pinii RX, TX sunt legati la aceste doua circuite care par a fi intre pinii de comunicatie seriala ai microcontrollerelor ( care au pinii RX comuni si TX comuni ) si portul serial de la calculator. Ma gandesc ca aceste circuite impreuna cu tranzistorii BD138, BC107A o dioda si cateva rezistente tin loc de circuitul MAX232 ce face conversia de nivele de tensiune din CMOS in +/-12 V pentru RS232. Vreau cine stie sa-mi spuna va rog mult ce-i cu aceste doua MB104I4D si daca aveti un datasheet pentru ele. Pe capsule este acel triunghi sigla "DVE" si m-ar interesa ce producator indica. Singura referire pe net despre acest circuit am gasit-o la http://www.forosdeelectronica.com/f13/s ... 9-a-19232/. :jytuiyu

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.



×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.Terms of Use si Guidelines