PIC16F628-04SLASHSS datasheet(141/160 Pages) MICROCHIP

141 / 160 page

Preliminary

DS40300B-page 141

PIC16F62X

FIGURE 17-8: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND POWER-UP

TIMER TIMING

FIGURE 17-9: BROWN-OUT DETECT TIMING

TABLE 17-6:

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

TIMER REQUIREMENTS

Parameter

No.

Sym

Characteristic

Min

Typ†

Max

Unit

Conditions

TmcL

MCLR Pulse Width (low)

2000

TBD

—

TBD

—

TBD

VDD = 5V, -40°C to +85°C

Extended temperature

Twdt

Watchdog Timer Time-out Period

(No Prescaler)

TBD

VDD = 5V, -40°C to +85°C

Extended temperature

Tost

Oscillation Start-up Timer Period

—

1024TOSC

——

TOSC = OSC1 period

33*

Tpwrt

Power up Timer Period

TBD

132

TBD

VDD = 5V, -40°C to +85°C

TIOZ

I/O Hi-impedance from MCLR Low

or Watchdog Timer Reset

——

2.0

µs

TBOD

Brown-out Detect pulse width

100

—

µsVDD ≤ BVDD (D005)

VDD

MCLR

Internal

POR

PWRT

Timeout

OSC

Timeout

Internal

RESET

Watchdog

Timer

RESET

I/O Pins

VDD

BVDD

PIC16F628-04/SS Datasheet(PDF) 141 Page - Microchip Technology

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