PIC18LF452 Microchip Technology, PIC18LF452 Datasheet - Page 276
PIC18LF452
Manufacturer Part Number
PIC18LF452
Description
(PIC18LFxx2) Enhanced FLASH Microcontrollers
Manufacturer
Microchip Technology
Datasheet
1.PIC18LF452.pdf
(332 pages)
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PIC18FXX2
FIGURE 22-8:
TABLE 22-7:
DS39564B-page 274
30
31
32
33
34
35
36
37
Param.
Internal Reference Voltage stable
Enable Internal Reference Voltage
No.
V
V
TmcL
T
T
T
T
T
T
T
Symbol
IRVST
WDT
OST
DD
PWRT
IOZ
BOR
IVRST
LVD
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 Hi-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
BROWN-OUT RESET TIMING
Characteristic
36
BV
DD
1024 T
Min
200
200
28
—
—
2
7
OSC
Typ
18
72
20
—
—
—
—
2
35
1024 T
Max
132
500
33
—
—
—
—
OSC
Units
2002 Microchip Technology Inc.
ms
ms
—
s
s
s
s
s
T
V
D005)
V
D420)
OSC
DD
DD
Conditions
= OSC1 period
B
V
V
Typical
VDD
LVD
BGAP
(see
(see
= 1.2V
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