PIC12F629/675
TABLE 12-4: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER,
AND BROWN-OUT DETECT REQUIREMENTS
Param
No.
Sym
TMCL
Characteristic
Min
Typ†
Max Units
Conditions
30
2
TBD
—
TBD
—
s VDD = 5V, -40°C to +85°C
MCLR Pulse Width (low)
TBD
ms Extended temperature
31
TWDT
TOST
Watchdog Timer Time-out
Period
(No Prescaler)
10
10
17
17
25
30
ms VDD = 5V, -40°C to +85°C
ms Extended temperature
32
Oscillation Start-up Timer
Period
—
1024TOSC
—
—
TOSC = OSC1 period
33*
TPWRT Power-up Timer Period
28*
TBD
72
TBD
132*
TBD
ms VDD = 5V, -40°C to +85°C
ms Extended Temperature
34
TIOZ
I/O High-impedance from
MCLR Low or Watchdog Timer
Reset
—
—
2.0
s
BVDD
TBOD
Brown-out Detect Voltage
Brown-out Hysteresis
2.025
TBD
100*
—
—
—
2.175
—
V
—
35
*
Brown-out Detect Pulse Width
—
s VDD BVDD (D005)
These parameters are characterized but not tested.
† Data in “Typ” column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance only
and are not tested.
DS41190G-page 100
2010 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
