 |
数据搜索系统，热门电子元器件搜索 |
|
|
数据搜索系统，热门电子元器件搜索 |
|
PIC18F87J11 数据表(PDF) 37 Page - Microchip Technology |
|
|
|||||||||||||||||||||||||||||
PIC18F87J11 数据表(HTML) 37 Page - Microchip Technology |
|
|
37 / 466 page  2007-2012 Microchip Technology Inc. DS39778E-page 37 PIC18F87J11 FAMILY 3.0 OSCILLATOR CONFIGURATIONS 3.1 Oscillator Types The PIC18F87J11 family of devices can be operated in eight different oscillator modes: 1. HS High-Speed Crystal/Resonator 2. HSPLL High-Speed Crystal/Resonator with Software PLL Control 3. EC External Clock with FOSC/4 Output 4. ECPLL External Clock with Software PLL Control 5. INTIO1 Internal Oscillator Block with FOSC/4 Output on RA6 and I/O on RA7 6. INTIO2 Internal Oscillator Block with I/O on RA6 and RA7 7. INTPLL1 Internal Oscillator Block with Software PLL Control, FOSC/4 Output on RA6 and I/O on RA7 8. INTPLL2 Internal Oscillator Block with Software PLL Control and I/O on RA6 and RA7 All of these modes are selected by the user by programming the FOSC<2:0> Configuration bits. In addition, PIC18F87J11 family devices can switch between different clock sources, either under software control or automatically under certain conditions. This allows for additional power savings by managing device clock speed in real time without resetting the application. The clock sources for the PIC18F87J11 family of devices are shown in Figure 3-1. FIGURE 3-1: PIC18F87J11 FAMILY CLOCK DIAGRAM PIC18F87J11 Family 4 x PLL FOSC<2:0> T1OSCEN Enable Oscillator T1OSO T1OSI Clock Source Option for Other Modules OSC1 OSC2 Sleep HSPLL, ECPLL, INTPLL HS, EC T1OSC CPU Peripherals IDLEN 8 MHz 4 MHz 2 MHz 1 MHz 500 kHz 125 kHz 250 kHz OSCCON<6:4> 111 110 101 100 011 010 001 000 31 kHz INTRC Source Internal Oscillator Block WDT, PWRT, FSCM 8 MHz Internal Oscillator (INTOSC) OSCCON<6:4> Clock Control OSCCON<1:0> Source 8 MHz 31 kHz (INTRC) 0 1 OSCTUNE<7> and Two-Speed Start-up Primary Oscillator OSCTUNE<6> Secondary Oscillator |
|
链接网址 |
| ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 数据表链接 | 链接交换 | 制造商名单 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 |
Chinese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
