PIC12F1840 MICROCHIP [Microchip Technology], PIC12F1840 Datasheet - Page 48

• Manufacturer Part Number: PIC12F1840
• Description: 8-Pin Flash Microcontrollers with nanoWatt XLP Technology
• Manufacturer: MICROCHIP [Microchip Technology]

PIC12F/LF1840
FIGURE 5-1:
DS41441A-page 48
T1OSO
T1OSI
OSC2
OSC1
Oscillator
Oscillator
External
Oscillator
Internal
500 kHz
Source
Source
HFPLL
31 kHz
Block
SIMPLIFIED PIC
Timer1
T1OSCEN
Enable
Oscillator
Sleep
(HFINTOSC)
(MFINTOSC)
31 kHz (LFINTOSC)
16 MHz
500 kHz
®
MCU CLOCK SOURCE BLOCK DIAGRAM
Preliminary
31.25 kHz
FOSC<2:0> = 100
62.5 kHz
500 kHz
250 kHz
125 kHz
16 MHz
31 kHz
8 MHz
4 MHz
2 MHz
1 MHz
IRCF<3:0>
4 x PLL
LP, XT, HS, RC, EC
Two-Speed Start-up and other modules
Internal Oscillator
WDT, PWRT, Fail-Safe Clock Monitor
FOSC<2:0>
T1OSC
 2011 Microchip Technology Inc.
Clock Source Option
for other modules
Control
Clock
SCS<1:0>
Sleep
Peripherals
CPU and