PIC16LCR66-04/P データシートの表示（PDF） - Microchip Technology

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PIC16LCR66-04/P

8-Bit CMOS Microcontrollers

Microchip Technology 

PIC16C6X

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

FIGURE 22-4: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND POWER-UP

TIMER TIMING

VDD

MCLR

Internal

POR

PWRT

Time-out

OSC

Time-out

Internal

RESET

Watchdog

Timer

RESET

33

32

I/O Pins

Note: Refer to Figure 22-1 for load conditions.

FIGURE 22-5: BROWN-OUT RESET TIMING

30

34

31

34

VDD

BVDD

35

TABLE 22-4: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER,

AND BROWN-OUT RESET REQUIREMENTS

Parameter

No.

Sym Characteristic

Min

Typ†

Max Units

Conditions

30

TmcL MCLR Pulse Width (low)

2

—

—

µs VDD = 5V, -40˚C to +125˚C

31*

Twdt Watchdog Timer Time-out Period

7

18

33 ms VDD = 5V, -40˚C to +125˚C

(No Prescaler)

32

Tost Oscillation Start-up Timer Period

— 1024 TOSC —

— TOSC = OSC1 period

33*

Tpwrt Power-up Timer Period

28

72

132 ms VDD = 5V, -40˚C to +125˚C

34

TIOZ I/O Hi-impedance from MCLR Low —

—

2.1 µs

or WDT reset

35

TBOR Brown-out Reset Pulse Width

100

—

—

µs VDD ≤ 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.

© 1997 Microchip Technology Inc.

Preliminary

DS30234D-page 255

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