PIC18F2458 Datasheet, PDF (34/46 Pages) Microchip Technology – 28/40/44-Pin High-Performance, Enhanced Flash, USB Microcontrollers with 12-Bit A/D and nanoWatt Technology

PIC18F2458/2553/4458/4553
FIGURE 4-1:
PIC18F2458/2553/4458/4553 VOLTAGE-FREQUENCY GRAPH (INDUSTRIAL)
6.0V
5.5V
5.0V
4.5V
4.0V
3.5V
3.0V
2.5V
2.0V
PIC18F2458/2553/4458/4553
4.2V
Frequency
48 MHz
FIGURE 4-2:
PIC18LF2458/2553/4458/4553 VOLTAGE-FREQUENCY GRAPH (INDUSTRIAL)
6.0V
5.5V
5.0V
4.5V
4.0V
3.5V
3.0V
2.5V
2.0V
PIC18LF2458/2553/4458/4553
4.2V
4 MHz
Frequency
40 MHz 48 MHz
For 2.0V ≤ VDD < 4.2V: FMAX = (16.36 MHz/V) (VDDAPPMIN – 2.0V) + 4 MHz
For 4.2V ≤ VDD: FMAX = 48 MHz
Note: VDDAPPMIN is the minimum voltage of the PIC^® device in the application.
DS39887B-page 32
Preliminary
© 2007 Microchip Technology Inc.