Microchip Technology MA330016 数据表
© 2007-2011 Microchip Technology Inc.
DS70290J-page 225
dsPIC33FJ32GP202/204 and dsPIC33FJ16GP304
TABLE 22-21: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER
TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature
(unless otherwise stated)
Operating temperature
-40°C
≤ T
A
≤ +85°C for Industrial
-40°C
≤ T
A
≤ +125°C for Extended
Param
No.
Symbol
Characteristic
Min
Typ
(2)
Max
Units
Conditions
SY10
T
MC
L
MCLR Pulse-Width (low)
(1)
2 —
—
μs
-40°C to +85°C
SY11
T
PWRT
Power-up Timer Period
—
2
4
8
4
8
16
32
64
32
64
128
—
ms
-40°C to +85°C
User programmable
User programmable
SY12
T
POR
Power-on Reset Delay
(3)
3
10
30
μs
-40°C to +85°C
SY13
T
IOZ
I/O High-Impedance from
MCLR Low or Watchdog
Timer Reset
MCLR Low or Watchdog
Timer Reset
(1)
0.68
0.72
1.2
μs
—
SY20
T
WDT
1
Watchdog Timer Time-out
Period
Period
(1)
—
—
—
ms
and LPRC parameter
SY30
T
OST
Oscillator Start-up Time
—
1024
T
T
OSC
—
—
T
OSC
= OSC1 period
SY35
T
FSCM
Fail-Safe Clock Monitor
Delay
Delay
(1)
—
500
900
μs
-40°C to +85°C
Note 1: These parameters are characterized but not tested in manufacturing.
2: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.
3: These parameters are characterized, but are not tested in manufacturing.
3: These parameters are characterized, but are not tested in manufacturing.