HCS500 查看數據表（PDF） - Microchip Technology

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HCS500

KEELOQ Code Hopping Decoder

Microchip Technology 

HCS500

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

3.0

—

5.5

V

VPOR VDD start voltage to

ensure Reset

—

Vss

—

V

SVDD VDD rise rate to

ensure reset

0.05*

—

—

V/ms

IDD Supply current

—

1.8

2.4

mA FOSC = 4 MHz, VDD = 5.5V

—

0.3

5

µA Sleep mode (no RF input)

IPD Power Down Current

—

0.25

4

µA VDD = 3.0V, Commercial

—

0.3

5

µA VDD = 3.0V, Industrial

VIL Input low voltage

VSS

— 0.15 VDD V Except MCLR = 0.15 VDD

VSS

—

0.8

V VDD between 4.5V and 5.5V

VIH Input high voltage

0.25 VDD

—

VDD

2.0

—

VDD

V Except MCLR = 0.85 VDD

V VDD between 4.5V and 5.5V

VOL Output low voltage

—

—

0.6

V IOL = 8.7 mA, VDD = 4.5V

VOH Output high voltage

VDD - 0.7

—

—

V IOH = -5.4 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

TE Transmit elemental period

65

—

660

µs

TOD Output delay

48

75

237

ms

TMCLR MCLR low time

150

—

—

ns

TOV Time output valid

—

150

222

ms

FIGURE 8-1: RESET WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND POWER-UP

TIMER TIMING

VDD

MCLR

I/O Pins

TMCLR

Tov

© 1997 Microchip Technology Inc.

Preliminary

DS40153B-page 19

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