PIC16F1507-ESLASHSS. datasheet(221/278 Pages) MICROCHIP

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 2011-2015 Microchip Technology Inc.

DS40001586D-page 221

PIC16(L)F1507

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

AND BROWN-OUT RESET PARAMETERS

FIGURE 25-9:

BROWN-OUT RESET TIMING AND CHARACTERISTICS

Standard Operating Conditions (unless otherwise stated)

Param.

No.

Sym.

Characteristic

Min.

Typ†

Max.

Units

Conditions

TMCLMCLR Pulse Width (low)

—

s

TWDTLP Low-Power Watchdog Timer

Time-out Period

VDD = 3.3V-5V,

1:512 Prescaler used

33*

TPWRT

Power-up Timer Period

140

PWRTE = 0

34*

TIOZ

I/O high-impedance from MCLR Low

or Watchdog Timer Reset

——

2.0

s

VBOR

Brown-out Reset Voltage(1)

2.55

2.35

1.80

2.70

2.45

1.90

2.85

2.58

2.05

BORV = 0

BORV = 1 (PIC16F1507)

BORV = 1 (PIC16LF1507)

36*

VHYST

Brown-out Reset Hysteresis

-40°C

 TA  +85°C

37*

TBORDC Brown-out Reset DC Response Time

sVDD  VBOR

VLPBOR Low-Power Brown-Out Reset Voltage

1.8

2.1

2.5

LPBOR = 1

These parameters are characterized but not tested.

† Data in “Typ” column is at 3.0V, 25°C unless otherwise stated. These parameters are for design guidance

only and are not tested.

Note 1:

To ensure these voltage tolerances, VDD and VSS must be capacitively decoupled as close to the device as

possible. 0.1

F and 0.01 F values in parallel are recommended.

VBOR

VDD

(Device in Brown-out Reset)

(Device not in Brown-out Reset)

Reset

(due to BOR)

VBOR and VHYST

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