Datasheet

PIC18F6585/8585/6680/8680
DS30491D-page 414  2003-2013 Microchip Technology Inc.
FIGURE 27-1: PIC18F6585/8585/6680/8680 VOLTAGE-FREQUENCY GRAPH (INDUSTRIAL)
FIGURE 27-2: PIC18LF6585/8585/6680/8680 VOLTAGE-FREQUENCY GRAPH (INDUSTRIAL)
Frequency
Voltage
6.0V
5.5V
4.5V
4.0V
2.0V
FMAX
5.0V
3.5V
3.0V
2.5V
PIC18FXX8X
4.2V
FMAX = 40 MHz for PIC18F6X8X and PIC18F8X8X in Microcontroller mode.
F
MAX = 25 MHz for PIC18F8X8X in modes other than Microcontroller mode.
Frequency
Voltage
6.0V
5.5V
4.5V
4.0V
2.0V
FMAX
5.0V
3.5V
3.0V
2.5V
PIC18LFXX8X
FMAX = (16.36 MHz/V) (VDDAPPMIN – 2.0V) + 4 MHz, if VDDAPPMIN  4.2V;
Note: V
DDAPPMIN is the minimum voltage of the PIC
®
device in the application.
4 MHz
4.2V
FMAX = 40 MHz, if VDDAPPMIN > 4.2V.
For PIC18F6X8X and PIC18F8X8X in Microcontroller mode:
F
MAX = (9.55 MHz/V) (VDDAPPMIN – 2.0V) + 4 MHz, if VDDAPPMIN  4.2V;
F
MAX = 25 MHz, if VDDAPPMIN > 4.2V.
For PIC18F8X8X in modes other than Microcontroller mode:
18F8680.book Page 414 Tuesday, January 29, 2013 1:32 PM