PIC18F1220 MICROCHIP [Microchip Technology], PIC18F1220 Datasheet - Page 265

• Manufacturer Part Number: PIC18F1220
• Description: 18/20/28-Pin High-Performance, Enhanced Flash Microcontrollers with 10-bit A/D and nanoWatt Technology
• Manufacturer: MICROCHIP [Microchip Technology]

TABLE 22-8:
FIGURE 22-10:
 2004 Microchip Technology Inc.
30
31
32
33
34
35
36
37
Param.
No.
Note:
T1OSO/T13CKI
TmcL
T
T
T
T
T
T
T
Symbol
WDT
OST
PWRT
IOZ
BOR
IVRST
LVD
TMR0 or
T0CKI
Refer to Figure 22-5 for load conditions.
TMR1
RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER
AND BROWN-OUT RESET REQUIREMENTS
MCLR Pulse Width (low)
Watchdog Timer Time-out Period
(No postscaler)
Oscillation Start-up Timer Period
Power-up Timer Period
I/O High-Impedance from MCLR
Low or Watchdog Timer Reset
Brown-out Reset Pulse Width
Time for Internal Reference
Voltage to become stable
Low-Voltage Detect Pulse Width
TIMER0 AND TIMER1 EXTERNAL CLOCK TIMINGS
Characteristic
40
45
1024 T
3.48
Min
200
200
—
—
—
42
2
47
OSC
4.00
65.5
Typ
20
—
—
—
—
2
41
46
PIC18F1220/1320
1024 T
Max
4.71
132
50
—
—
—
—
OSC
Units
ms
ms
—
s
s
s
s
s
48
T
V
V
OSC
DD
DD
DS39605C-page 263
= OSC1 period
Conditions
B
V
VDD
LVD
(see D005)