Datasheet

PIC16F630/676
DS40039E-page 98 © 2007 Microchip Technology Inc.
TABLE 12-4: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER,
AND BROWN-OUT DETECT REQUIREMENTS
Param
No.
Sym Characteristic Min Typ† Max Units Conditions
30 T
MCL
MCLR Pulse Width (low)
2
11
—
18
—
24
μs
ms
VDD = 5V, -40°C to +85°C
Extended temperature
31 TWDT Watchdog Timer Time-out
Period
(No Prescaler)
10
10
17
17
25
30
ms
ms
V
DD = 5V, -40°C to +85°C
Extended temperature
32 TOST Oscillation Start-up Timer
Period
— 1024TOSC ——TOSC = OSC1 period
33* TPWRT Power-up Timer Period 28*
TBD
72
TBD
132*
TBD
ms
ms
VDD = 5V, -40°C to +85°C
Extended Temperature
34 TIOZ I/O Hi-impedance from MCLR
Low or Watchdog Timer Reset
——2.0μs
BVDD Brown-out Detect Voltage 2.025 — 2.175 V
Brown-out Hysteresis TBD — — —
35 T
BOD Brown-out Detect Pulse Width 100* — — μsVDD ≤ 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.