PIC18LF1320-I/SOSQTP 查看數據表（PDF） - Microchip Technology

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PIC18LF1320-I/SOSQTP

18/20/28-Pin High-Performance, Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

Microchip Technology 

PIC18F1220/1320

TABLE 22-8: 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

3.48 4.00 4.71

ms

(No postscaler)

32

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

33

TPWRT Power-up Timer Period

— 65.5 132

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 Low-Voltage Detect Pulse Width

200

—

—

μs VDD ≤ VLVD

FIGURE 22-10: TIMER0 AND TIMER1 EXTERNAL CLOCK TIMINGS

T0CKI

T1OSO/T13CKI

40

41

42

45

46

TMR0 or

TMR1

47

48

Note: Refer to Figure 22-5 for load conditions.

© 2007 Microchip Technology Inc.

DS39605F-page 261

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