HCS515 datasheet(20/32 Pages) MICROCHIP

20 / 32 page

HCS515

DS40183D-page 20

FIGURE 8-1:

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

TIMER TIMING

TABLE 8-1:

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

VExcept 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 8-2:

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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