PIC18F2525 MICROCHIP [Microchip Technology], PIC18F2525 Datasheet - Page 348
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PIC18F2525
Manufacturer Part Number
PIC18F2525
Description
28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
1.PIC18F2525.pdf
(390 pages)
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PIC18F2525/2620/4525/4620
FIGURE 26-8:
FIGURE 26-9:
TABLE 26-10: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER
DS39626B-page 346
30
31
32
33
34
35
36
37
38
39
Param.
No.
Watchdog
Note:
Time-out
Time-out
I/O pins
Internal
Internal
PWRT
MCLR
Reset
Reset
Timer
Reference Voltage
Internal Reference
POR
OSC
Symbol
TmcL
T
T
T
T
T
T
T
T
T
V
OST
CSD
WDT
IOZ
IVRST
IOBST
PWRT
BOR
LVD
DD
Enable Internal
Voltage Stable
Refer to Figure 26-5 for load conditions.
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
High/Low-Voltage Detect Pulse Width
CPU Start-up Time
Time for INTOSC to Stabilize
V
IRVST
V
RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND
POWER-UP TIMER TIMING
BROWN-OUT RESET TIMING
DD
33
Characteristic
32
Preliminary
36
BV
1024 T
DD
55.6
Min
200
200
3.4
—
—
—
—
2
OSC
34
65.5
30
Typ
4.0
—
—
—
20
—
10
2
1
1024 T
35
Max
4.6
75
50
—
—
—
—
—
—
OSC
31
2004 Microchip Technology Inc.
Units
ms
ms
—
s
s
s
s
s
s
s
T
V
V
OSC
DD
DD
34
= OSC1 period
Conditions
B
V
VDD
LVD
(see D005)
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