Microchip Technology DM160214 Data Sheet
PIC16(L)F1946/47
DS41414D-page 62
2010-2012 Microchip Technology Inc.
FIGURE 5-1:
SIMPLIFIED PIC
®
MCU CLOCK SOURCE BLOCK DIAGRAM
4 x PLL
FOSC<2:0>
Oscillator
T1OSCEN
Enable
Oscillator
T1OSO
T1OSI
Clock Source Option
for other modules
for other modules
OSC1
OSC2
Sleep
LP, XT, HS, RC, EC
T1OSC
CPU and
P
ostscale
r
MU
X
MU
X
16 MHz
8 MHz
4 MHz
2 MHz
1 MHz
4 MHz
2 MHz
1 MHz
250 kHz
500 kHz
IRCF<3:0>
31 kHz
500 kHz
Source
Internal
Oscillator
Block
WDT, PWRT, Fail-Safe Clock Monitor
16 MHz
Internal Oscillator
(HFINTOSC)
Clock
Control
SCS<1:0>
HFPLL
31 kHz (LFINTOSC)
Two-Speed Start-up and other modules
Oscillator
31 kHz
Source
500 kHz
(MFINTOSC)
125 kHz
31.25 kHz
62.5 kHz
FOSC<2:0> = 100
Peripherals
Sleep
External
Timer1