64GA106 datasheet(296/330 Pages) MICROCHIP

296 / 330 page

PIC24FJ256GA110 FAMILY

DS39905E-page 296

 2010 Microchip Technology Inc.

FIGURE 28-17:

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

TABLE 28-30: I2C™ BUS START/STOP BIT TIMING REQUIREMENTS (MASTER MODE)

AC CHARACTERISTICS

Standard Operating Conditions: 2.0V to 3.6V

(unless otherwise stated)

Operating temperature

-40°C

 TA  +85°C (Industrial)

Param

No.

Symbol

Characteristic

Min(1)

Max

Units

Conditions

IM30

TSU:STA Start Condition

Setup Time

100 kHz mode

TCY/2 (BRG + 1)

—

s

Only relevant for

Repeated Start

condition

400 kHz mode

TCY/2 (BRG + 1)

—

s

1 MHz mode(2)

TCY/2 (BRG + 1)

—

s

IM31

THD:STA Start Condition

Hold Time

100 kHz mode

TCY/2 (BRG + 1)

—

s

After this period, the

first clock pulse is

generated

400 kHz mode

TCY/2 (BRG + 1)

—

s

1 MHz mode(2)

TCY/2 (BRG + 1)

—

s

IM33

TSU:STO Stop Condition

Setup 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

IM34

THD:STO Stop Condition

100 kHz mode

TCY/2 (BRG + 1)

—

Hold Time

400 kHz mode

TCY/2 (BRG + 1)

—

1 MHz mode(2)

TCY/2 (BRG + 1)

—

Note 1:

BRG is the value of the I2C™ Baud Rate Generator. Refer to Section 16.3 “Setting Baud Rate When

Operating as a Bus Master”

for details

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

SCLx

SDAx

Start

Condition

Stop

Condition

Note:

Refer to Figure 28-4 for load conditions.

IM31

IM30

IM34

IM33

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