PIC16LF1454 Datasheet, PDF (58/418 Pages) Microchip Technology – 14/20-Pin Flash, 8-Bit USB Microcontrollers with XLP Technology

PIC16(L)F1454/5/9
FIGURE 5-1:
SIMPLIFIED PIC^® MCU CLOCK SOURCE BLOCK DIAGRAM
FOSC<2:0>
SPLLMULT
PLLMULT
3
SPLLEN
PLLEN
CLKIN/ OSC1/
SOSCI/ T1CKI
CLKOUT / OSC2
SOSCO/ T1G
Active Clock
Tuning
16 MHz
Internal OSC
Start-Up
OSC
Start-up
Control Logic
Primary
Oscillator
(OSC)
INTOSC
(16 or 8 MHz)
3x/4x PLL
Primary Clock
Secondary
Oscillator
(SOSC)
SOSC_clk
IRCF<3:0>
Secondary Clock
INTOSC
4
HFINTOSC
16 MHz
8 MHz
4 MHz
2 MHz
1 MHz
500 kHz
250 kHz
125 kHz
62.5 kHz
31.25 kHz
31 kHz
Clock
Control
2
3
CPUDIV<1:0>
CPU
Divider
FSEN
FOSC
1
to
0 CPU and
Peripherals
USB
Divider
48 MHz ₁
6 MHz ₀
USB
Clock
Source
USBLSCLK
Sleep
SCS<1:0>
FOSC<2:0>
31 kHz
Source
LFINTOSC
LFINTOSC
to WDT, PWRT
and other Modules
DS41639A-page 58
Preliminary
 2012 Microchip Technology Inc.