„MSP430 MCU” változatai közötti eltérés

Innen: APA BOARD
(MSP430G2553 launchpad)
24. sor: 24. sor:
  
 
https://www.allaboutcircuits.com/textbook/direct-current/chpt-13/series-and-parallel-capacitors/
 
https://www.allaboutcircuits.com/textbook/direct-current/chpt-13/series-and-parallel-capacitors/
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== infók ==
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http://processors.wiki.ti.com/index.php/MSP430_FAQ

A lap 2017. december 13., 22:03-kori változata

MSP430 MCU family from TI

Msp430 roadmap.png
Msp430 fejleszto eszkoz.png
Msp430G2xx value line parts.png
Msp430 uc s.png
MSP430 Part Number Decoder 2011.png
MSP430 decoder.png
MSP432 decoder.png

http://www.ti.com/lit/sg/slab034ad/slab034ad.pdf

MSP430G2553 launchpad

32khz-crystal

Load capacitance !!!

http://www.msp430launchpad.com/2012/03/using-aclk-and-32khz-crystal.html

For example, the LaunchPad uses 12pF capacitors to load the crystal we just installed, yet many crystals require 22pF.

Edit: This statement is actually incorrect. Another big thank you goes out to Jens-Michael for pointing it out to me. Thanks for reading! "12pF is the typical load for most crystals I've ever seen. But due to the electric connection, a 12pF load means [there will be 2] 24pF capacitance on each of the crystals sides. Reason is that (seen from the crystal), the two capacitors are in series to each other and parallel to the crystal. […] Subtract the ~2pF pin capacitance of the MSPs pins and you get [two separate] 22pF [for] external capacitors, resulting in 12pF load. The XCAP settings already include pin capacitance and the /2 factor."

https://www.allaboutcircuits.com/textbook/direct-current/chpt-13/series-and-parallel-capacitors/

infók

http://processors.wiki.ti.com/index.php/MSP430_FAQ