PIC18F2685T-I/SP View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC18F2685T-I/SP

28/40/44-Pin Enhanced Flash Microcontrollers with ECAN™ Technology, 10-Bit A/D and nanoWatt Technology

Microchip Technology 

PIC18F2682/2685/4682/4685

FIGURE 27-18: MASTER SSP I2C™ BUS START/STOP BITS TIMING WAVEFORMS

SCL

SDA

91

90

Start

Condition

Note: Refer to Figure 27-4 for load conditions.

93

92

Stop

Condition

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

Param.

No.

Symbol

Characteristic

Min

Max Units

Conditions

90

TSU:STA Start condition 100 kHz mode 2(TOSC)(BRG + 1) — ns Only relevant for

Setup Time

400 kHz mode 2(TOSC)(BRG + 1) —

Repeated Start condition

1 MHz mode(1) 2(TOSC)(BRG + 1)

—

91

THD:STA Start Condition 100 kHz mode 2(TOSC)(BRG + 1) — ns After this period, the first

Hold Time

400 kHz mode 2(TOSC)(BRG + 1) —

clock pulse is generated

1 MHz mode(1) 2(TOSC)(BRG + 1)

—

92

TSU:STO Stop Condition 100 kHz mode 2(TOSC)(BRG + 1)

—

ns

Setup Time

400 kHz mode 2(TOSC)(BRG + 1) —

1 MHz mode(1) 2(TOSC)(BRG + 1)

—

93

THD:STO Stop Condition 100 kHz mode 2(TOSC)(BRG + 1)

—

ns

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.

FIGURE 27-19: MASTER SSP I2C™ BUS DATA TIMING

SCL

SDA

In

SDA

Out

103

90

91

109

100

101

106

107

109

Note: Refer to Figure 27-4 for load conditions.

102

92

110

DS39761B-page 448

Preliminary

© 2007 Microchip Technology Inc.

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