Datasheet

PIC16(L)F1516/7/8/9
DS40001452D-page 48  2010-2013 Microchip Technology Inc.
FIGURE 5-1: SIMPLIFIED PIC
®
MCU CLOCK SOURCE BLOCK DIAGRAM
OSC2
OSC1
Primary
Oscillator
(OSC)
SOSCO/
T1CKI
SOSCI
Secondary
Oscillator
(SOSC)
16 MHz
Primary Osc
Start-Up Osc
LF-INTOSC
(31.25 kHz)
INTOSC
Divide Circuit
IRCF<3:0>
INTOSC
Primary Clock
Secondary Clock
Clock Switch MUX
01
00
1x
Low-Power Mode
Event Switch
(SCS<1:0>)
2
4
Secondary Oscillator
Primary Oscillator
Internal Oscillator
HF-16 MHz
HF-4 MHz
HF-2 MHz
HF-1 MHz
HF-500 kHz
HF-250 kHz
HF-125 kHz
HF-62.5 kHz
HF-31.25 kHz
LF-31 kHz
HF-8 MHz
Internal Oscillator MUX
4
1111
1110
1101
1100
1011
1010/
0111
1001/
0110
1000/
0101
0100
0011
0010
0001
0000
/1
/2
/4
/8
/16
/32
/64
/128
/256
/512
Start-up
Control
Logic