Microchip Technology MA180025 データシート
PIC18F87J90 FAMILY
DS39933D-page 394
2010 Microchip Technology Inc.
FIGURE 28-1:
VOLTAGE-FREQUENCY GRAPH,
REGULATOR ENABLED (INDUSTRIAL)
REGULATOR ENABLED (INDUSTRIAL)
(1)
FIGURE 28-2:
VOLTAGE-FREQUENCY GRAPH,
REGULATOR DISABLED (INDUSTRIAL)
REGULATOR DISABLED (INDUSTRIAL)
(1,2)
Frequency
Vo
lt
ag
e
(
V
DD
)
4.0V
2.0V
48 MHz
3.5V
3.0V
2.5V
3.6V
2.35V
0
Note 1:
When the on-chip regulator is enabled, its BOR circuit will automatically trigger a device Reset
before V
before V
DD
reaches a level at which full-speed operation is not possible.
8 MHz
PIC18F6XJ90/PIC18F8XJ90
Frequency
V
o
lt
age (V
D
DCO
RE
)
3.00V
2.00V
48 MHz
2.75V
2.50V
2.25V
2.7V
8 MHz
2.35V
Note 1: When the on-chip voltage regulator is disabled, V
DD
and V
DDCORE
must be maintained so that
V
DDCORE
V
DD
3.6V.
PIC18F6XJ90/PIC18F8XJ90