PIC24FJ256GA110_10 Datasheet, PDF (288/330 Pages) Microchip Technology – 64/80/100-Pin, 16-Bit, General Purpose Flash Microcontrollers with Peripheral Pin Select

PIC24FJ256GA110 FAMILY
FIGURE 28-7:
RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND POWER-UP
TIMER TIMING CHARACTERISTICS
VDD
MCLR
Internal
POR
SY12
SY10
PWRT
SYSRST
System
Clock
Watchdog
Timer Reset
I/O Pins
SY11
SY13
SY20
SY13
TABLE 28-21: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER
AND BROWN-OUT RESET TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 2.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C  TA  +85°C for Industrial
Param
No.
Symbol
Characteristic
Min Typ⁽¹⁾ Max Units
Conditions
SY10 TmcL
MCLR Pulse Width (low)
2
—
—
SY11 TPWRT Power-up Timer Period
—
64
—
SY12 TPOR
Power-on Reset Delay
1
5
10
SY13 TIOZ
I/O High-Impedance from MCLR —
Low or Watchdog Timer Reset
— 100
SY20 TWDT
Watchdog Timer Time-out Period 0.85 1.0 1.15
3.4 4.0 4.6
SY25 TBOR
Brown-out Reset Pulse Width
1
—
—
Note 1: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.
s
ms
s
ns
ms 1:32 prescaler
ms 1:128 prescaler
s VDD VBOR, voltage
regulator disabled
DS39905E-page 288
 2010 Microchip Technology Inc.