PIC16F1508TESSQTO datasheet(345/384 Pages) MICROCHIP

345 / 384 page

 2011 Microchip Technology Inc.

Preliminary

DS41609A-page 345

PIC16(L)F1508/9

TABLE 29-4:

RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER

AND BROWN-OUT RESET PARAMETERS

FIGURE 29-9:

TIMER0 AND TIMER1 EXTERNAL CLOCK TIMINGS

Standard Operating Conditions (unless otherwise stated)

Operating Temperature -40°C

TA +125°C

Param

No.

Sym.

Characteristic

Min.

Typ† Max. Units

Conditions

TMCLMCLR Pulse Width (low)

—

s

VDD = 3.3-5V, -40°C to +85°C

VDD = 3.3-5V

TWDTLP Low-Power Watchdog Timer

Time-out Period

VDD = 3.3V-5V,

1:16 Prescaler used

33*

TPWRT

Power-up Timer Period, PWRTE = 0

140

34*

TIOZ

I/O high-impedance from MCLR Low

or Watchdog Timer Reset

——

2.0

s

VBOR

Brown-out Reset Voltage

2.50

2.30

1.8

2.70

2.40

1.90

2.80

2.50

2.00

BORV = 0, high trip point

BORV = 1, low trip point

(PIC16F1508/9)

(PIC16LF1508/9)

36*

VHYST

Brown-out Reset Hysteresis

-40°C to +85°C

37*

TBORDC Brown-out Reset DC Response

Time

135

sVDD  VBOR

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.

T0CKI

T1CKI

TMR0 or

TMR1

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