PIC18F44J50-I Datasheet, PDF (41/562 Pages) Microchip Technology – 28/44-Pin, Low-Power, High-Performance USB Microcontrollers

PIC18F46J50 FAMILY
TABLE 3-5: OSCILLATOR CONFIGURATION OPTIONS FOR USB OPERATION
Input Oscillator
Frequency
PLL Division
(PLLDIV<2:0>)
Clock Mode
(FOSC<2:0>)
MCU Clock Division
(CPDIV<1:0>)
Microcontroller
Clock Frequency
None (11)
48 MHz
48 MHz
N/A
EC
2 (10)
24 MHz
3 (01)
16 MHz
6 (00)
8 MHz
None (11)
48 MHz
48 MHz
12 (000)
ECPLL
2 (10)
3 (01)
24 MHz
16 MHz
6 (00)
8 MHz
None (11)
48 MHz
40 MHz
10 (001)
ECPLL
2 (10)
3 (01)
24 MHz
16 MHz
6 (00)
8 MHz
None (11)
48 MHz
24 MHz
6 (010)
ECPLL
2 (10)
3 (01)
24 MHz
16 MHz
6 (00)
8 MHz
None (11)
24 MHz
24 MHz
N/A
EC
2 (10)
12 MHz
3 (01)
8 MHz
6 (00)
4 MHz
None (11)
48 MHz
20 MHz
5 (011)
ECPLL
2 (10)
3 (01)
24 MHz
16 MHz
6 (00)
8 MHz
None (11)
48 MHz
16 MHz
4 (100)
HSPLL, ECPLL
2 (10)
3 (01)
24 MHz
16 MHz
6 (00)
8 MHz
None (11)
48 MHz
12 MHz
3 (101)
HSPLL, ECPLL
2 (10)
3 (01)
24 MHz
16 MHz
6 (00)
8 MHz
8 MHz
2 (110)
HSPLL, ECPLL,
INTOSCPLL/
INTOSCPLLO
None (11)
2 (10)
3 (01)
6 (00)
48 MHz
24 MHz
16 MHz
8 MHz
None (11)
48 MHz
4 MHz
1 (111)
HSPLL, ECPLL
2 (10)
3 (01)
24 MHz
16 MHz
6 (00)
8 MHz
Legend:
All clock frequencies, except 24 MHz, are exclusively associated with full-speed USB operation (USB clock of 48 MHz).
Bold text highlights the clock selections that are compatible with low-speed USB operation (system clock of 24 MHz,
USB clock of 6 MHz).
 2011 Microchip Technology Inc.
DS39931D-page 41