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Sheet目录3873

179页 180页 181页 182页 [183页]184页 185页 186页 187页

dsPIC30F1010/202X

DS70178C-page 262

Preliminary

2006 Microchip Technology Inc.

TABLE 21-32: I2C BUS DATA TIMING REQUIREMENTS (SLAVE MODE)

AC CHARACTERISTICS

Standard Operating Conditions: 3.3V and 5.0V (±10%)

(unless otherwise stated)

Operating temperature

-40°C

≤ TA ≤ +85°C for Industrial

-40°C

≤ TA ≤ +125°C for Extended

Param

No.

Symbol

Characteristic

Min

Max

Units

Conditions

IS10

TLO:SCL

Clock Low Time

100 kHz mode

4.7

—

μs

Device must operate at a

minimum of 1.5 MHz

400 kHz mode

1.3

—

μs

Device must operate at a

minimum of 10 MHz.

1 MHz mode(1)

0.5

—

μs—

IS11

THI:SCL

Clock High Time

100 kHz mode

4.0

—

μs

Device must operate at a

minimum of 1.5 MHz

400 kHz mode

0.6

—

μs

Device must operate at a

minimum of 10 MHz

1 MHz mode(1)

0.5

—

μs—

IS20

TF:SCL

SDA and SCL

Fall Time

100 kHz mode

—

300

CB is specified to be from

10 to 400 pF

400 kHz mode

20 + 0.1 CB

300

1 MHz mode(1)

—

100

IS21

TR:SCL

SDA and SCL

Rise Time

100 kHz mode

—

1000

CB is specified to be from

10 to 400 pF

400 kHz mode

20 + 0.1 CB

300

1 MHz mode(1)

—

300

IS25

TSU:DAT

Data Input

Setup Time

100 kHz mode

250

—

400 kHz mode

100

—

1 MHz mode(1)

100

—

IS26

THD:DAT

Data Input

Hold Time

100 kHz mode

—

400 kHz mode

0.9

μs

1 MHz mode(1)

00.3

μs

IS30

TSU:STA

Start Condition

Setup Time

100 kHz mode

4.7

—

μs

Only relevant for repeated

Start condition

400 kHz mode

0.6

—

μs

1 MHz mode(1)

0.25

—

μs

IS31

THD:STA

Start Condition

Hold Time

100 kHz mode

4.0

—

μs

After this period the first

clock pulse is generated

400 kHz mode

0.6

—

μs

1 MHz mode(1)

0.25

—

μs

IS33

TSU:STO

Stop Condition

Setup Time

100 kHz mode

4.7

—

μs—

400 kHz mode

0.6

—

μs

1 MHz mode(1)

0.6

—

μs

IS34

THD:STO

Stop Condition

100 kHz mode

4000

—

Hold Time

400 kHz mode

600

—

1 MHz mode(1)

250

IS40

TAA:SCL

Output Valid From

Clock

100 kHz mode

3500

—

400 kHz mode

1000

1 MHz mode(1)

350

IS45

TBF:SDA

Bus Free Time

100 kHz mode

4.7

—

μs

Time the bus must be free

before a new transmission

can start

400 kHz mode

1.3

—

μs

1 MHz mode(1)

0.5

—

μs

IS50

Bus Capacitive

—

400

—

Note 1:

Maximum pin capacitance = 10 pF for all I2C pins (for 1 MHz mode only).

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