PIC18F010 datasheet(157/176 Pages) MICROCHIP

157 / 176 page

 2001 Microchip Technology Inc.

Preliminary

DS41142A-page 155

PIC18F010/020

TABLE 15-5:

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

AND BROWN-OUT RESET REQUIREMENTS

TABLE 15-6:

BANDGAP START-UP TIME

Parameter

No.

Sym

Characteristic

Min

Typ†

Max

Unit

Conditions

TmcL

MCLR Pulse Width (low)

100

——

VDD = 5V, -40°C to +85°C

31*

TWDT

Watchdog Timer Time-out

Period (No Prescaler)

718

VDD = 5V, -40°C to +85°C

TOST

Oscillation Start-up Timer

Period

—

1024TOSC

——

TOSC = OSC1 period

33*

TPWRT Power up Timer Period

132

VDD = 5V, -40°C to +85°C

TIOZ

I/O Hi-Impedance from MCLR

Low or Watchdog Timer Reset

——

100

TBOR

Brown-out Reset 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.

Parameter

No.

Symbol

Characteristic

Min

Typ†

Max

Units

Conditions

36*

TIVR

Internal Voltage Reference

start-up time

—

µs

Defined as the time between

the instant that the Internal

Voltage Reference is enabled

and the moment that the

Internal Voltage Reference is

stable.

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.

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