PIC16F84A datasheet(171/337 Pages) MICROCHIP

171 / 337 page

DS30234D-page 171

PIC16C6X

Applicable Devices 61 62 62A R62 63 R63 64 64A R64 65 65A R65 66 67

FIGURE 16-4: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND POWER-UP

TIMER TIMING

TABLE 16-4:

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 +125˚C

Twdt

Watchdog Timer Time-out Period

(No Prescaler)

718

VDD = 5V, -40˚C to +125˚C

Tost

Oscillation Start-up Timer Period

—

1024TOSC

—

TOSC = OSC1 period

Tpwrt

Power-up Timer Period

132

VDD = 5V, -40˚C to +125˚C

TIOZ

I/O Hi-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 16-1 for load conditions.

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