PIC18LF2610T-I/SO View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC18LF2610T-I/SO

28/40/44-Pin Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

Microchip Technology 

PIC18F2X1X/4X1X

FIGURE 25-8:

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 25-5 for load conditions.

30

31

34

34

FIGURE 25-9:

BROWN-OUT RESET TIMING

VDD

VIRVST

Enable Internal

Reference Voltage

Internal Reference

Voltage Stable

BVDD

35

36

TABLE 25-10: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER

AND BROWN-OUT RESET REQUIREMENTS

Param.

No.

Symbol

Characteristic

Min Typ Max Units

Conditions

30

TmcL MCLR Pulse Width (low)

2

—

—

μs

31

TWDT Watchdog Timer Time-out Period

(no postscaler)

3.4

4.0

4.6

ms

32

TOST Oscillation Start-up Timer Period 1024 TOSC — 1024 TOSC — TOSC = OSC1 period

33

TPWRT Power-up Timer Period

55.6 65.5

75

ms

34

TIOZ I/O High-Impedance from MCLR

Low or Watchdog Timer Reset

—

2

—

μs

35

TBOR Brown-out Reset Pulse Width

200

—

—

μs VDD ≤ BVDD (see D005)

36

TIVRST Time for Internal Reference

Voltage to become Stable

—

20

50

μs

37

TLVD High/Low-Voltage Detect Pulse Width 200

—

—

μs VDD ≤ VLVD

38

TCSD CPU Start-up Time

—

10

—

μs

39

TIOBST Time for INTOSC to Stabilize

—

1

—

μs

DS39636C-page 334

Preliminary

© 2007 Microchip Technology Inc.

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