HCS515_11 datasheet(24/38 Pages) MICROCHIP

24 / 38 page

HCS515

DS40183E-page 24

FIGURE 9-1:

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

TIMER TIMING

TABLE 9-1:

DC CHARACTERISTICS

Standard Operating Conditions (unless otherwise stated)

Operating temperature

Commercial (C):

0°C

≤TA ≤+70°C

Industrial (I):

-40°C

≤TA ≤+85°C

Symbol

Parameters

Min.

Typ.(†)

Max.

Units

Conditions

VDD

Supply voltage

4.5

—

5.5

—

VPOR

VDD start voltage to

ensure RESET

—

Vss

—

SVDD

VDD rise rate to

ensure RESET

0.05*

—

V/ms

—

IDD

Supply current

—

1.8

FOSC = 4 MHz, VDD = 5.5V

IPD

Power-Down Current

—

μAVDD = 4.5V

VIL

Input low voltage

VSS

—V

MCLR = .2 VDD

VSS

—0.8

VDD between 4.5V and 5.5V

VIH

Input high voltage

0.25 VDD + 0.8

—

VDD

VVDD between 4.5V and 5.5V

Except MCLR = 0.80 VDD

VOL

Output low voltage

—

0.6

IOL = 8.5 mA, VDD = 4.5V

VOH

Output high voltage

VDD - 0.7

—

IOH = -3 mA, VDD = 4.5V

† Data in “Typ” column is at 5.0V, 25

° C unless otherwise stated. These parameters are for design guidance only

and are not tested.

* These parameters are characterized but not tested.

Note:

Negative current is defined as coming out of the pin.

TABLE 9-2:

AC CHARACTERISTICS

Standard Operating Conditions (unless otherwise specified):

Commercial (C):

0°C

≤TA ≤+70°C

Industrial (I):

-40°C

≤TA ≤+85°C

Symbol

Parameters

Min.

Typ.

Max.

Units

Conditions

Transmit elemental period

—

660

μs—

TOD

Output delay

237

—

TMCLR

MCLR low time

150

—

TOV

Time output valid

—

150

222

—

Note:

These parameters are characterized but not tested.

VDD

MCLR

I/O Pins

Tov

TMCLR

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