PIC24FJ64GA306-I/MR Microchip Technology, PIC24FJ64GA306-I/MR Datasheet - Page 145

• Manufacturer Part Number: PIC24FJ64GA306-I/MR
• Description: 16-bit, 16 MIPS, 64 KB Flash, 8 KB RAM, 53 I/O, LCD, XLP W/Vbat 64 QFN 9x9x0.9mm
• Manufacturer: Microchip Technology

9.0
The oscillator system for PIC24FJ128GA310 family
devices has the following features:
• A total of four external and internal oscillator options
• On-chip 4x PLL to boost internal operating frequency
FIGURE 9-1:
 2010-2011 Microchip Technology Inc.
Note:
as clock sources, providing 11 different clock modes
on select internal and external oscillator sources
SOSCO
SOSCI
OSCO
OSCI
OSCILLATOR
CONFIGURATION
“Section 6. Oscillator” (DS39700).
This data sheet summarizes the features of
this group of PIC24F devices. It is not
intended to be a comprehensive reference
source. For more information, refer to the
“PIC24F
Primary Oscillator
Secondary Oscillator
Oscillator
Oscillator
LPRC
FRC
Family
PIC24FJ128GA310 FAMILY CLOCK DIAGRAM
SOSCEN
Enable
Oscillator
(nominal)
31 kHz (nominal)
8 MHz
Reference
Manual”,
CLKDIV<10:8>
PIC24FJ128GA310 FAMILY
4 x PLL
8 MHz
4 MHz
• Software-controllable switching between various
• Software-controllable postscaler for selective
• A Fail-Safe Clock Monitor (FSCM) that detects
• A separate and independently configurable system
A simplified diagram of the oscillator system is shown
in
ECPLL, FRCPLL
clock sources
clocking of CPU for system power savings
clock failure and permits safe application recovery
or shutdown
clock output for synchronizing external hardware
Figure
XTPLL, HSPLL,
XT, HS, EC
FRCDIV
9-1.
SOSC
LPRC
FRC
Clock Control Logic
Fail-Safe
Monitor
Clock
CLKDIV<14:12>
Reference Clock
WDT, PWRT
Clock Source Option
for Other Modules
Generator
REFOCON<15:8>
DS39996F-page 145
Peripherals
REFO
CLKO
CPU