Moteur de recherche de fiches techniques de composants électroniques |
|
ST72411R Fiches technique(PDF) 43 Page - STMicroelectronics |
|
ST72411R Fiches technique(HTML) 43 Page - STMicroelectronics |
43 / 71 page ST72411R 43/71 LCD DRIVER (Cont’d) 5.4.5 Clock generation Figure 35. LCD Clock Generation Diagram The frequency divider (FS[2:0]) should be chosen according to the input frequency and the required frame frequency, A compromise should be found between a suffi- cient frame frequency display on the LCD for cor- rect visualisation and a low frame frequency for low consumption. Below are the approximate LCD and frame fre- quencies resulting from the input frequencies se- lected using the FS[2:0] bits. Note: The LCD frequency (fLCD) must not exceed 2kHz. fOSC/2 3.58MHz FS2 FS1 FS0 Ratio fLCD fframe 1 1 1 16384 213.5Hz 53Hz 1 1 0 8192 427Hz 109Hz 1 0 1 4096 874Hz 218.5Hz 1 0 0 2048 1.748kHz 437Hz fOSC/2 4MHz FS2 FS1 FS0 Ratio fLCD fframe 1 1 1 16384 244Hz 61Hz 1 1 0 8192 488Hz 122Hz 1 0 1 4096 977Hz 244Hz 1 0 0 2048 1.953kHz 488Hz fOSC/2 ---- FS2 FS1 FS0 LCDE LCDCR RATIO DIVIDER FS2 FS1 FS0 fLCD fOSC/2 2MHz FS2 FS1 FS0 Ratio fLCD fframe 1 1 0 8192 244Hz 61Hz 1 0 1 4096 488Hz 122Hz 1 0 0 2048 977Hz 244Hz 0 1 1 1024 1.953kHz 488Hz fOSC/2 1MHz FS2 FS1 FS0 Ratio fLCD fframe 1 0 1 4096 244Hz 61Hz 1 0 0 2048 488Hz 122Hz 0 1 1 1024 977Hz 244Hz 0 1 0 512 1.953kHz 488Hz fOSC/2 500kHz FS2 FS1 FS0 Ratio fLCD fframe 1 0 0 2048 244Hz 61Hz 0 1 1 1024 488Hz 122Hz 0 1 0 512 977Hz 244Hz 0 0 1 256 1.953kHz 488Hz fOSC/2 225kHz FS2 FS1 FS0 Ratio fLCD fframe 0 1 1 1024 244Hz 61Hz 0 1 0 512 488Hz 122Hz 0 0 1 256 977Hz 244Hz 0 0 0 128 1.953kHz 488Hz |
Numéro de pièce similaire - ST72411R |
|
Description similaire - ST72411R |
|
|
Lien URL |
Politique de confidentialité |
ALLDATASHEET.FR |
ALLDATASHEET vous a-t-il été utile ? [ DONATE ] |
À propos de Alldatasheet | Publicité | Contactez-nous | Politique de confidentialité | Echange de liens | Fabricants All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |