PIC18LF45J10T-I/SP View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC18LF45J10T-I/SP

28/40/44-Pin High-Performance RISC Microcontrollers with nanoWatt Technology

Microchip Technology 

PIC18F45J10 FAMILY

FIGURE 23-6:

RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND

POWER-UP TIMER TIMING

VDD

MCLR

Internal

POR

PWRT

Time-out

Oscillator

Time-out

Internal

Reset

Watchdog

Timer

Reset

33

32

I/O pins

Note: Refer to Figure 23-3 for load conditions.

30

31

34

34

FIGURE 23-7:

BROWN-OUT RESET TIMING

VDD

BVDD

VIRVST

Enable Internal

Reference Voltage

Internal Reference

Voltage Stable

VBGAP = 1.2V

TABLE 23-10: 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)

2.8

4.1

5.4

ms

32

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

33

TPWRT Power-up Timer Period

46.2

66

85.8

ms

34

TIOZ I/O High-Impedance from MCLR

Low or Watchdog Timer Reset

—

2

—

μs

38

TCSD CPU Start-up Time

—

200

—

μs

DS39682C-page 314

Preliminary

© 2007 Microchip Technology Inc.

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