PIC18F87K22 Datasheet, PDF (484/548 Pages) Microchip Technology – 64/80-Pin, High-Performance, 1-Mbit Enhanced Flash Microcontrollers with 12-Bit A/D and nanoWatt XLP Technology

PIC18F87K22 FAMILY
FIGURE 31-1:
VOLTAGE-FREQUENCY GRAPH, REGULATOR ENABLED (INDUSTRIAL)⁽¹⁾
6V
5V
4V
3V
1.8V
PIC18F87K22 Family
5.5V
3V
0 _{4 MHz}
Frequency
64 MHz⁽¹⁾
Note 1:
2:
FMAX = 25 MHz in 8-Bit External Memory mode. For VDD values, 1.8V to 3V, FMAX = (VDD – 1.8)/
0.02 MHz.
FMAX = 64 MHz in all other modes. For VDD values, 1.8V to 3V, FMAX = (VDD – 1.72)/0.02 MHz.
FIGURE 31-2:
VOLTAGE-FREQUENCY GRAPH, REGULATOR DISABLED (INDUSTRIAL)^(1,2)
4V
3.75V
3.25V
2.5V
1.8V
PIC18F87K22 Family
3.6V
3V
4 MHz
Frequency
64 MHz
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.
DS39960B-page 484
Preliminary
 2010 Microchip Technology Inc.