Datasheet

Table Of Contents
PIC16(L)F1508/9
DS40001609C-page 48 2011-2013 Microchip Technology Inc.
FIGURE 5-1: SIMPLIFIED PIC
®
MCU CLOCK SOURCE BLOCK DIAGRAM
Primary
Oscillator
(OSC)
Secondary
Oscillator
(SOSC)
CLKIN/ OSC1/
SOSCI/ T1CKI
CLKOUT/ OSC2/
SOSCO/ T1G
Start-up
Control Logic
16 MHz
Oscillator
Fast Start-up
Oscillator
31 kHz
Oscillator
Prescaler
HFINTOSC
(1)
16 MHz
8MHz
4MHz
2MHz
1MHz
*500 kHz
*250 kHz
*125 kHz
62.5 kHz
*31.25 kHz
*31 kHz
IRCF<3:0>
4
INTOSC
Secondary Clock
(1)
Primary Clock
HFINTOSC
LFINTOSC
to CPU and
Peripherals
Sleep
FOSC
(1)
LFINTOSC
(1)
to WDT, PWRT, and
other Peripherals
* Available with more than one IRCF selection
Clock
Control
FOSC<2:0> SCS<1:0>
32
600 kHz
Oscillator
FRC
FRC
(1)
to ADC and
other Peripherals
Rev. 10-000030A
7/30/2013
Note 1: See Section 5.2.2.4 “Peripheral Clock Sources”.