PIC18F4520ESLASHMLQTP datasheet(357/390 Pages) MICROCHIP

357 / 390 page

 2004 Microchip Technology Inc.

Preliminary

DS39631A-page 355

PIC18F2420/2520/4420/4520

FIGURE 26-18:

MASTER SSP I2C BUS START/STOP BITS TIMING WAVEFORMS

TABLE 26-20: MASTER SSP I2C BUS START/STOP BITS REQUIREMENTS

FIGURE 26-19:

MASTER SSP I2C BUS DATA TIMING

Note:

Refer to Figure 26-4 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 26-4 for load conditions.

100

101

103

106

107

109

110

102

SCL

SDA

Out

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