Datasheet

PIC18F2455/2550/4455/4550
DS39632E-page 368 © 2009 Microchip Technology Inc.
FIGURE 28-1: PIC18F2455/2550/4455/4550 VOLTAGE-FREQUENCY GRAPH (INDUSTRIAL)
FIGURE 28-2: PIC18LF2455/2550/4455/4550 VOLTAGE-FREQUENCY GRAPH (INDUSTRIAL
LOW VOLTAGE)
Frequency
Voltage
6.0V
5.5V
4.5V
4.0V
2.0V
48 MHz
5.0V
3.5V
3.0V
2.5V
4.2V
Frequency
Voltage
6.0V
5.5V
4.5V
4.0V
2.0V
48 MHz
5.0V
3.5V
3.0V
2.5V
4 MHz
4.2V
40 MHz
Note 1: VDDAPPMIN is the minimum voltage of the PIC
®
device in the application.
2: For 2.0 <
VDD < 4.2 V, FMAX = (16.36 MHz/V) (VDDAPPMIN - 2.0V) + 4 MHz
3: For V
DD ≥ 4.2 V, FMAX = 48 MHz.