PIC18F47J53 Datasheet, PDF (41/586 Pages) Microchip Technology – 28/44-Pin, High-Performance USB Microcontrollers with nanoWatt XLP Technology

PIC18F47J53 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
Note
None (11)
48 MHz
48 MHz
N/A
2 (10)
24 MHz
EC
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⁽¹⁾
2 (10)
3 (01)
12 MHz
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
1: The 24 MHz EC mode (without PLL) is only compatible with low-speed USB. Full-speed USB requires a 48 MHz system
clock.
 2010 Microchip Technology Inc.
Preliminary
DS39964B-page 41