HCS500T-ISLASHST datasheet(29/42 Pages) MICROCHIP

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DS40000153E-page 29

HCS500

9.2.6

LEARN STATUS STRING

9.2.7

ERASE ALL COMMAND

9.2.8

PROGRAMMING COMMAND

TABLE 9-8:

LEARN STATUS STRING

Section 9.1 “Standard Operating Conditions”

Symbol

Parameters

Min.

Typ.

Max.

Units

TDHI

Command request time

—

500

TCLA

Microcontroller command

request time

0.005

—

500

TCA

Decoder request

acknowledge time

——

s

TCLH

Clock high hold time

1.2

TCLL

Clock low hold time

0.020

—

1.2

TCLKH

Clock high time

—

1000

s

TCLKL

Clock low time

—

1000

s

FCLK

Clock frequency

500

—

25000

TDS

Data hold time

—

s

These parameters are characterized but not tested.

TABLE 9-9:

TIMING SPECIFICATION FOR ERASE ALL COMMAND

Section 9.1 “Standard Operating Conditions”

Symbol

Parameters

Min.

Typ.

Max.

Units

TERA

Learn command activation time

—

1000

s

TACK

Decoder acknowledge time

—

210

TRESP

Microcontroller acknowledge

response time

—

1000

s

TACK2

Decoder data line low

—

s

These parameters are characterized but not tested.

TABLE 9-10:

TIMING SPECIFICATION FOR PROGRAMMING COMMAND

Section 9.1 “Standard Operating Conditions”

Symbol

Parameters

Min.

Typ.

Max.

Units

TPP1

Command request time

—

500

TPP2

Decoder acknowledge time

—

TPP3

Start Command mode to first

command bit

—

1000

s

TPP4

Data line low before tri-stated

—

s

TCLKH

Clock high time

—

1000

s

TCLKL

Clock low time

—

1000

s

FCLK

Clock frequency

500

—

25000

TDS

Data hold time

—

s

TCMD

Command validate time

—

s

TACK

Command acknowledge time

—

240

TWT2

Acknowledge respond time

—

1000

s

TALW

Data low after clock low

—

s

These parameters are characterized but not tested.

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