PIC16F526-ISLASHP datasheet(94/122 Pages) MICROCHIP

94 / 122 page

PIC16F526

DS41326D-page 94

 2010 Microchip Technology Inc.

FIGURE 14-6:

RESET, WATCHDOG TIMER AND DEVICE RESET TIMER TIMING

TABLE 14-9:

RESET, WATCHDOG TIMER AND DEVICE RESET TIMER

AC CHARACTERISTICS

Standard Operating Conditions (unless otherwise specified)

Operating Temperature -40

C  TA  +85C (industrial)

-40

C  TA  +125C (extended)

Operating Voltage VDD range is described in

Section 14.1 “DC Characteristics: PIC16F526 (Industrial)”

Param

No.

Sym.

Characteristic

Min.

Typ.(1) Max.

Units

Conditions

TMCLMCLR Pulse Width (low)

2000*

—

VDD = 5.0V

TWDT

Watchdog Timer Time-out Period

(no prescaler)

18*

30*

40*

VDD = 5.0V (Industrial)

VDD = 5.0V (Extended)

TDRT

Device Reset Timer Period

Standard

18*

30*

40*

VDD = 5.0V (Industrial)

VDD = 5.0V (Extended)

Short

0.5*

1.125*

2.5*

VDD = 5.0V (Industrial)

VDD = 5.0V (Extended)

TIOZ

I/O High-impedance from MCLR

low

—

2000*

* These parameters are characterized but not tested.

Note 1:

Data in the Typical (“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

DRT

Time-out(2)

Internal

Reset

Watchdog

Timer

Reset

I/O pin(1)

Note 1:

I/O pins must be taken out of High-Impedance mode by enabling the output drivers in software.

Runs in MCLR or WDT Reset only in XT, LP and HS modes.

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