PIC18F87K90 Datasheet, PDF (525/566 Pages) Microchip Technology – 64/80-Pin, High-Performance Microcontrollers with LCD Driver and nanoWatt XLP Technology

PIC18F87K90 FAMILY
TABLE 31-10: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER
AND BROWN-OUT RESET REQUIREMENTS
Param.
No.
Symbol
Characteristic
Min Typ Max Units
Conditions
30
TmcL MCLR Pulse Width (low)
2
—
—
s VDD = 3.3-5.0V,
-40°C to +85°C
5
—
—
s VDD = 3.3-5.0V
31
TWDT Watchdog Timer Time-out Period
(no postscaler)
—
4.00
—
ms
32
TOST Oscillation Start-up Timer Period 1024 TOSC — 1024 TOSC — TOSC = OSC1 period
33
TPWRT Power-up Timer Period
—
65.5 140
ms
34
TIOZ I/O High-Impedance from MCLR
Low or Watchdog Timer Reset
35
TBOR Brown-out Reset Pulse Width
—
2
—
200
—
—
36
TIRVST Time for Internal Reference
Voltage to become Stable
—
25
—
37
THLVD High/Low-Voltage Detect Pulse Width 200
—
—
38
TCSD CPU Start-up Time
5
—
10
39
TIOBST Time for INTOSC to Stabilize
—
1
—
s
s VDD  BVDD
(see D005)
s
s VDD  VHLVD
s
ms
 2010 Microchip Technology Inc.
Preliminary
DS39957B-page 525