PIC18F6520-I Datasheet, PDF (311/380 Pages) Micrel Semiconductor – 64/80-Pin High-Performance, 256 Kbit to 1 Mbit Enhanced Flash Microcontrollers with A/D

PIC18F6520/8520/6620/8620/6720/8720
FIGURE 26-3:
PIC18F6620/6720/8620/8720 VOLTAGE-FREQUENCY GRAPH
(INDUSTRIAL, EXTENDED)
6.0V
5.5V
5.0V
4.5V
4.0V
3.5V
3.0V
2.5V
2.0V
PIC18FX620/X720
4.2V
FMAX (Extended)
Frequency
FMAX
FMAX = 25 MHz in Microcontroller mode.
FMAX (Extended) = 16 MHz for PIC18F6520/8520 in modes other than Microcontroller mode.
FIGURE 26-4:
PIC18LF6620/6720/8620/8720 VOLTAGE-FREQUENCY GRAPH (INDUSTRIAL)
6.0V
5.5V
5.0V
4.5V
4.0V
3.5V
3.0V
2.5V
2.0V
PIC18LFX620/X720
4.2V
4 MHz
Frequency
FMAX
In Microcontroller mode:
FMAX = (9.55 MHz/V) (VDDAPPMIN – 2.0V) + 4 MHz, if VDDAPPMIN ≤ 4.2V;
FMAX = 25 MHz, if VDDAPPMIN > 4.2V.
In modes other than Microcontroller mode:
FMAX = (5.45 MHz/V) (VDDAPPMIN – 2.0V) + 4 MHz, if VDDAPPMIN ≤ 4.2V;
FMAX = 16 MHz, if VDDAPPMIN > 4.2V.
Note: VDDAPPMIN is the minimum voltage of the Picmicro^® device in the application.
 2004 Microchip Technology Inc.
DS39609B-page 309