PIC18F258 Datasheet, PDF (328/384 Pages) Microchip Technology – High Performance, 28/40-Pin Enhanced FLASH Microcontrollers with CAN

PIC18FXX8
FIGURE 27-1:
PIC18FXX8 VOLTAGE-FREQUENCY GRAPH (INDUSTRIAL)
6.0V
5.5V
5.0V
4.5V
4.0V
3.5V
3.0V
2.5V
2.0V
PIC18FXX8
4.2V
Frequency
40 MHz
FIGURE 27-2:
PIC18LFXX8 VOLTAGE-FREQUENCY GRAPH (INDUSTRIAL)
6.0V
5.5V
5.0V
4.5V
4.0V
3.5V
3.0V
2.5V
2.0V
PIC18LFXX8
4.2V
4 MHz
Frequency
40 MHz
FMAX = (16.36 MHz/V) (VDDAPPMIN – 2.0V) + 4 MHz, if VDDAPPMIN ≤ 4.2V
= 40 MHz, if VDDAPPMIN > 4.2V
Note: VDDAPPMIN is the minimum voltage of the PICmicro^® device in the application.
DS41159B-page 326
Preliminary
 2002 Microchip Technology Inc.