30F4013 datasheet(201/228 Pages) MICROCHIP

201 / 228 page

 2010 Microchip Technology Inc.

DS70138G-page 201

dsPIC30F3014/4013

FIGURE 23-18:

I2C™ BUS START/STOP BITS TIMING CHARACTERISTICS (MASTER MODE)

FIGURE 23-19:

I2C™ BUS DATA TIMING CHARACTERISTICS (MASTER MODE)

TABLE 23-34: I2C™ BUS DATA TIMING REQUIREMENTS (MASTER MODE)

AC CHARACTERISTICS

Standard Operating Conditions: 2.5V to 5.5V

(unless otherwise stated)

Operating temperature

-40°C

 TA  +85°C for Industrial

-40°C

 TA  +125°C for Extended

Param

No.

Symbol

Characteristic

Min(1)

Max

Units

Conditions

IM10

TLO:SCL

Clock Low Time 100 kHz mode

TCY/2 (BRG + 1)

—

s

400 kHz mode

TCY/2 (BRG + 1)

—

s

1 MHz mode(2)

TCY/2 (BRG + 1)

—

s

IM11

THI:SCL

Clock High Time 100 kHz mode

TCY/2 (BRG + 1)

—

s

400 kHz mode

TCY/2 (BRG + 1)

—

s

1 MHz mode(2)

TCY/2 (BRG + 1)

—

s

IM20

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(2)

—

100

Note 1:

BRG is the value of the I2C Baud Rate Generator. Refer to Section 21. “Inter-Integrated Circuit™ (I2C)”

in the “dsPIC30F Family Reference Manual” (DS70046).

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

IM31

IM34

SCL

SDA

Start

Condition

Stop

Condition

IM30

IM33

Note: Refer to Figure 23-3 for load conditions.

IM11

IM10

IM33

IM11

IM10

IM20

IM26

IM25

IM40

IM45

IM21

SCL

SDA

Out

Note: Refer to Figure 23-3 for load conditions.

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