 |
Moteur de recherche de fiches techniques de composants électroniques |
|
|
Moteur de recherche de fiches techniques de composants électroniques |
|
ATMEGA8-16PU Fiches technique(PDF) 75 Page - ATMEL Corporation |
|
||||||||||||||||||||||||||||||
ATMEGA8-16PU Fiches technique(HTML) 75 Page - ATMEL Corporation |
|
|
75 / 308 page  75 2486T–AVR–05/08 ATmega8(L) sampling, the maximum frequency of an external clock it can detect is half the sampling fre- quency (Nyquist sampling theorem). However, due to variation of the system clock frequency and duty cycle caused by Oscillator source (crystal, resonator, and capacitors) tolerances, it is recommended that maximum frequency of an external clock source is less than f clk_I/O/2.5. An external clock source can not be prescaled. Figure 31. Prescaler for Timer/Counter0 and Timer/Counter1 (1) Note: 1. The synchronization logic on the input pins ( T1/T0) is shown in Figure 30. Special Function IO Register – SFIOR • Bit 0 – PSR10: Prescaler Reset Timer/Counter1 and Timer/Counter0 When this bit is written to one, the Timer/Counter1 and Timer/Counter0 prescaler will be reset. The bit will be cleared by hardware after the operation is performed. Writing a zero to this bit will have no effect. Note that Timer/Counter1 and Timer/Counter0 share the same prescaler and a reset of this prescaler will affect both timers. This bit will always be read as zero. PSR10 Clear clk T1 clk T0 T1 T0 clk I/O Synchronization Synchronization Bit 7 6 5 4 3 2 1 0 – – – – ACME PUD PSR2 PSR10 SFIOR Read/Write R R R R R/W R/W R/W R/W Initial Value 0 0 0 0 0 0 0 0 |
Numéro de pièce similaire - ATMEGA8-16PU |
|
Description similaire - ATMEGA8-16PU |
|
|
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 |
French ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
