PIC18F25J11-I/PT MICROCHIP [Microchip Technology], PIC18F25J11-I/PT Datasheet - Page 32

• Manufacturer Part Number: PIC18F25J11-I/PT
• Description: 28/44-Pin, Low-Power, High-Performance Microcontrollers with nanoWatt XLP Technology
• Manufacturer: MICROCHIP [Microchip Technology]

PIC18F46J11 FAMILY
2.2.1
Figure 2-1 helps in understanding the oscillator
structure of the PIC18F46J11 family of devices.
FIGURE 2-1:
DS39932C-page 32
T1OSO
Note 1:
T1OSI
OSC2
OSC1
OSCILLATOR MODES
8 MHz and 4 MHz are valid INTOSC postscaler settings for the PLL. Selecting other INTOSC postscaler
settings will operate the PLL outside of the specification.
Primary Oscillator
Secondary Oscillator
PIC18F46J11 FAMILY CLOCK DIAGRAM
OSCCON<6:4>
Oscillator
Internal
Source
Source
INTRC
8 MHz
Block
T1OSCEN
Enable
Oscillator
Sleep
31 kHz (INTRC)
(INTOSC)
OSCTUNE<7>
8 MHz
PIC18F46J11 Family
1
0
500 kHz
250 kHz
125 kHz
31 kHz
8 MHz
4 MHz
2 MHz
1 MHz
OSCCON<6:4>
4 x PLL
OSCTUNE<7>
111
110
101
100
011
010
001
000
(1)
HSPLL, ECPLL, INTPLL
Internal Oscillator
FOSC<2:0>
© 2009 Microchip Technology Inc.
HS, EC
T1OSC
Clock Source Option
for Other Modules
WDT, PWRT, FSCM
and Two-Speed Start-up
Control
Clock
OSCCON<1:0>
Peripherals
IDLEN
CPU