PIC18F2680ISPQTP datasheet(448/482 Pages) MICROCHIP

448 / 482 page

PIC18F2585/2680/4585/4680

DS39625C-page 446

Preliminary

FIGURE 27-18:

MASTER SSP I2C™ BUS START/STOP BITS TIMING WAVEFORMS

TABLE 27-20: MASTER SSP I2C™ BUS START/STOP BITS REQUIREMENTS

FIGURE 27-19:

MASTER SSP I2C™ BUS DATA TIMING

Note:

Refer to Figure 27-4 for load conditions.

SCL

SDA

Start

Condition

Stop

Condition

Param.

No.

Symbol

Characteristic

Min

Max

Units

Conditions

TSU:STA

Start condition

100 kHz mode

2(TOSC)(BRG + 1)

—

Only relevant for

Repeated Start condition

Setup Time

400 kHz mode

2(TOSC)(BRG + 1)

—

1 MHz mode(1)

2(TOSC)(BRG + 1)

—

THD:STA Start Condition

100 kHz mode

2(TOSC)(BRG + 1)

—

After this period, the first

clock pulse is generated

Hold Time

400 kHz mode

2(TOSC)(BRG + 1)

—

1 MHz mode(1)

2(TOSC)(BRG + 1)

—

TSU:STO

Stop Condition

100 kHz mode

2(TOSC)(BRG + 1)

—

Setup Time

400 kHz mode

2(TOSC)(BRG + 1)

—

1 MHz mode(1)

2(TOSC)(BRG + 1)

—

THD:STO Stop Condition

100 kHz mode

2(TOSC)(BRG + 1)

—

Hold Time

400 kHz mode

2(TOSC)(BRG + 1)

—

1 MHz mode(1)

2(TOSC)(BRG + 1)

—

Note 1: Maximum pin capacitance = 10 pF for all I2C pins.

Note:

Refer to Figure 27-4 for load conditions.

100

101

103

106

107

109

110

102

SCL

SDA

Out

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