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
—
TBD
µs VDD = 5V, -40°C to +85°C
ms Extended temperature
MCLR Pulse Width (low)
3±
TWDT
TOST
Watchdog Timer Time-out
Period
(No Prescaler)
±0
±0
±7
±7
25
30
ms VDD = 5V, -40°C to +85°C
ms Extended temperature
32
Oscillation Start-up Timer
Period
—
±024TOSC
—
—
TOSC = OSC± period
33*
TPWRT Power-up Timer Period
28*
TBD
72
TBD
±32*
TBD
ms VDD = 5V, -40°C to +85°C
ms Extended Temperature
34
TIOZ
I/O Hi-impedance from MCLR
Low or Watchdog Timer Reset
—
—
2.0
µs
BVDD
Brown-out Detect Voltage
Brown-out Hysteresis
2.025
TBD
±00*
—
—
—
2.±75
—
V
—
35
*
TBOD
Brown-out Detect Pulse Width
—
µs 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.
DS41190C-page 98
2003 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
