PIC16LC71 datasheet(143/176 Pages) MICROCHIP

143 / 176 page

DS30272A-page 143

PIC16C71X

Applicable Devices

710 71 711 715

FIGURE 15-4: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND POWER-UP

TIMER TIMING

TABLE 15-4:

RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND POWER-UP

TIMER REQUIREMENTS

Parameter

No.

Sym

Characteristic

Min

Typ†

Max

Units

Conditions

TmcL

MCLR Pulse Width (low)

200

—

VDD = 5V, -40˚C to +85˚C

Twdt

Watchdog Timer Time-out Period

33*

VDD = 5V, -40˚C to +85˚C

(No Prescaler)

Tost

Oscillation Start-up Timer Period

—

1024 TOSC

—

TOSC = OSC1 period

Tpwrt

Power-up Timer Period

28*

132*

VDD = 5V, -40˚C to +85˚C

TIOZ

I/O High Impedance from MCLR

Low

—

100

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.

VDD

MCLR

Internal

POR

PWRT

Time-out

OSC

Time-out

Internal

RESET

Watchdog

Timer

RESET

I/O Pins

Note: Refer to Figure 15-1 for load conditions.

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