PIC18F2221 MICROCHIP [Microchip Technology], PIC18F2221 Datasheet - Page 49

• Manufacturer Part Number: PIC18F2221
• Description: 28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology
• Manufacturer: MICROCHIP [Microchip Technology]

FIGURE 4-6:
FIGURE 4-7:
© 2007 Microchip Technology Inc.
Note:
INTERNAL RESET
PWRT TIME-OUT
INTERNAL POR
OST TIME-OUT
PLL TIME-OUT
INTERNAL RESET
T
T
PWRT TIME-OUT
OST
PLL
INTERNAL POR
OST TIME-OUT
MCLR
≈ 2 ms max. First three stages of the PWRT timer.
= 1024 clock cycles.
V
DD
SLOW RISE TIME (MCLR TIED TO V
TIME-OUT SEQUENCE ON POR w/PLL ENABLED (MCLR TIED TO V
MCLR
V
DD
0V
T
PWRT
Preliminary
T
PWRT
PIC18F4321 FAMILY
DD
T
5V
OST
, V
DD
T
OST
RISE > T
T
PLL
PWRT
)
DS39689E-page 47
DD
)