Datasheet

PIC18F87J50 FAMILY
DS39775C-page 420 © 2009 Microchip Technology Inc.
FIGURE 28-1: PIC18F87J50 FAMILY VDD FREQUENCY GRAPH (INDUSTRIAL)
FIGURE 28-2: PIC18F87J50 FAMILY V
DDCORE FREQUENCY GRAPH (INDUSTRIAL)
(1)
0
Note 1: When the USB module is enabled, V
USB and VDD should be connected together and provided
3.0V-3.6V while V
DDCORE must be ≥ 2.45V. When the core regulator is enabled and VDD is ≥ 3.0V, it
will always regulate to ≥ 2.45V. When the USB module is not enabled, V
USB and VDD should still be
connected together, but the wider limits shaded in gray apply.
Frequency
Voltage (VDD)
4.0V
2.0V
48 MHz
3.5V
3.0V
2.5V
3.6V
8 MHz
PIC18F87J50 Family
2.35V
(Note 1)
Frequency
Voltage (VDDCORE)
3.00V
2.00V
48 MHz
2.75V
2.50V
2.25V
2.75V
8 MHz
2.35V
Note 1: VDD and VDDCORE must be maintained so that VDDCORE ≤ VDD.
2: When the USB module is enabled, V
USB and VDD should be connected together and provided
3.0V-3.6V while V
DDCORE must be ≥ 2.45V. When the core regulator is enabled and VDD is ≥ 3.0V,
it will always regulate to ≥ 2.45V. When the USB module is not enabled, V
USB and VDD should still
be connected together, but the wider limits shaded in gray apply.
0
2.45V
(2)
PIC18F87J50 Family