DSPIC30F2011_06 Datasheet, PDF (163/205 Pages) Microchip Technology – High-Performance, 16-Bit Digital Signal Controllers

dsPIC30F2011/2012/3012/3013
FIGURE 20-6:
VDD
MCLR
Internal
POR
PWRT
Time-out
OSC
Time-out
Internal
RESET
Watchdog
Timer
RESET
I/O Pins
FSCM
Delay
RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND POWER-UP
TIMER TIMING CHARACTERISTICS
SY12
SY11
SY30
SY10
SY35
SY13
SY20
SY13
Note: Refer to Figure 20-3 for load conditions.
TABLE 20-21: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER
AND BROWN-OUT RESET TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 2.5V to 5.5V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤ TA ≤ +125°C for Extended
Param
No.
Symbol
Characteristic⁽¹⁾
Min
Typ⁽²⁾
Max Units
Conditions
SY10 TmcL MCLR Pulse Width (low)
2
—
—
SY11 TPWRT Power-up Timer Period
3
4
6
12
16
22
50
64
90
SY12 TPOR Power On Reset Delay
3
10
30
SY13 TIOZ I/O high impedance from MCLR —
0.8
1.0
Low or Watchdog Timer Reset
SY20 TWDT1 Watchdog Timer Time-out Period 1.4
2.1
2.8
(No Prescaler)
TWDT2
1.4
2.1
2.8
SY25 TBOR Brown-out Reset Pulse Width⁽³⁾ 100
—
—
SY30 TOST Oscillation Start-up Timer Period — 1024 TOSC —
SY35 TFSCM Fail-Safe Clock Monitor Delay
—
500
900
Note 1: These parameters are characterized but not tested in manufacturing.
2: Data in “Typ” column is at 5V, 25°C unless otherwise stated.
3: Refer to Figure 20-2 and Table 20-11 for BOR.
μs -40°C to +85°C
ms -40°C to +85°C
User programmable
μs -40°C to +85°C
μs
ms VDD = 5V, -40°C to +85°C
ms VDD = 3V, -40°C to +85°C
μs VDD ≤ VBOR (D034)
— TOSC = OSC1 period
μs -40°C to +85°C
© 2006 Microchip Technology Inc.
DS70139E-page 161