HCS515(2002) 데이터 시트보기 (PDF) - Microchip Technology

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HCS515
(Rev.:2002)

KEELOQ® Code Hopping Decoder

Microchip Technology 

HCS515

8.1 AC Electrical Characteristics

8.1.1 VALID TRANSMISSION NOTIFICATION

Standard Operating Conditions (unless otherwise specified)

Commercial (C): 0°C ≤TA ≤ +70°C

Industrial (I):

-40°C ≤ TA ≤ +85°C

Symbol

Parameters

Min.

TDHI Command request time

0.0050

TCLA Micro request acknowledge time

0.0050

TACK Decoder Acknowledge time

—

TACT

Start Command mode to

first command bit

20

TCLKH Clock high time

20

TCLKL Clock low time

20

FCLK Clock frequency

500

TDS Data hold time

14

Note: These parameters are characterized but not tested.

Typ.

—

—

—

—

—

—

—

—

Max.

500

1

4

1200

1000

1000

25000

1000

Units

ms

ms

µs

µs

µs

µs

Hz

µs

8.1.2 COMMAND MODE ACTIVATION

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

TREQ Command request time

0.0050

—

500

ms

TRESP

Microcontroller request

acknowledge time

—

—

1

ms

TACK Decoder acknowledge time

—

—

4

µs

TSTART

Start Command mode to first

command bit

20

—

1000

µs

TCLKH Clock high time

20

—

1000

µs

TCLKL Clock low time

20

—

1000

µs

FCLK Clock frequency

500

—

25000

Hz

TDS Data hold time

14

—

—

µs

TCMD Command validate time

—

—

10

µs

TADDR Address validate time

—

—

10

µs

TDATA Data validate time

—

—

10

µs

Note: These parameters are characterized but not tested.

8.1.3 READ FROM USER EEPROM COMMAND

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

TRD Decoder EEPROM read time

1000

—

2000

µs

Note: These parameters are characterized but not tested.

© 2002 Microchip Technology Inc.

DS40183D-page 21

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