PIC18LF4550T-I/SO View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC18LF4550T-I/SO

28/40/44-Pin, High-Performance, Enhanced Flash, USB Microcontrollers with nanoWatt Technology

Microchip Technology 

PIC18F2455/2550/4455/4550

FIGURE 28-17: MASTER SSP I2C™ BUS START/STOP BITS TIMING WAVEFORMS

SCL

SDA

91

90

93

92

Start

Condition

Note: Refer to Figure 28-4 for load conditions.

Stop

Condition

TABLE 28-21: 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) —

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

—

Repeated Start

condition

91

THD:STA Start Condition

100 kHz mode 2(TOSC)(BRG + 1) — ns After this period, the

Hold Time

400 kHz mode 2(TOSC)(BRG + 1) —

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

—

first clock pulse is

generated

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 28-18:

SCL

SDA

In

SDA

Out

MASTER SSP I2C™ BUS DATA TIMING

103

100

101

90

91

106

107

109

109

Note: Refer to Figure 28-4 for load conditions.

102

92

110

© 2009 Microchip Technology Inc.

DS39632E-page 399

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