Datasheet

2011 Microchip Technology Inc. DS39995B-page 287
PIC24FV32KA304 FAMILY
TABLE 29-29: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER,
AND BROWN-OUT RESET TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 1.8V to 3.6V PIC24F32KA3XX
2.0V to 5.5V PIC24FV32KA3XX
Operating temperature -40°C
T
A
+85°C for Industrial
Param
No.
Symbol Characteristic Min. Typ
(1)
Max. Units Conditions
SY10 TmcL MCLR
Pulse Width (low) 2 s
SY11 TPWRT Power-up Timer Period 50 64 90 ms
SY12 TPOR Power-on Reset Delay 1 5 10 s
SY13 T
IOZ I/O High-Impedance from
MCLR
Low or Watchdog
Timer Reset
100
ns
SY20 T
WDT Watchdog Timer Time-out
Period
0.85 1.0 1.15 ms 1.32 prescaler
3.4 4.0 4.6 ms 1:128 prescaler
SY25 T
BOR Brown-out Reset Pulse
Width
1— s
SY45 T
RST Internal State Reset Time 5 s
SY55 TLOCK PLL Start-up Time 100 s
SY65 TOST Oscillator Start-up Time 1024 TOSC
SY70 TDSWU Wake-up from Deep Sleep
Time
—100 s Based on full discharge of 10
F capacitor on V
CAP. Includes
T
POR and TRST
SY71 TPM Program Memory Wake-up
Time
—1 sSleep wake-up with
PMSLP = 0
SY72 T
LVR Low-Voltage Regulator
Wake-up Time
—250 s
Note 1: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.