Datasheet

PIC18F87K22 FAMILY
DS39960B-page 484 Preliminary  2010 Microchip Technology Inc.
FIGURE 31-1: VOLTAGE-FREQUENCY GRAPH, REGULATOR ENABLED (INDUSTRIAL)
(1)
FIGURE 31-2: VOLTAGE-FREQUENCY GRAPH, REGULATOR DISABLED (INDUSTRIAL)
(1,2)
Frequency
Voltage (VDD)
6V
1.8V
64 MHz
(1)
5V
4V
3V
5.5V
3V
0
4 MHz
PIC18F87K22 Family
Note 1: FMAX = 25 MHz in 8-Bit External Memory mode. For VDD values, 1.8V to 3V, FMAX = (VDD – 1.8)/
0.02 MHz.
2: FMAX = 64 MHz in all other modes. For VDD values, 1.8V to 3V, FMAX = (VDD – 1.72)/0.02 MHz.
Frequency
Voltage (VDD)
4V
1.8V
64 MHz
3.75V
3.25V
2.5V
3.6V
4 MHz
3V
Note 1: When the on-chip voltage regulator is disabled, VDD must be maintained so that VDD 3.6V.
2: For VDD values, 1.8V to 3V, FMAX = (VDD – 1.8)/0.02 MHz.
PIC18F87K22 Family