MCP23008-ESLASHP datasheet(27/44 Pages) MICROCHIP

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DS21919D-page 27

MCP23008/MCP23S08

TABLE 2-2:

I2C™ BUS DATA REQUIREMENTS

I2C™ AC Characteristics

Operating Conditions (unless otherwise indicated):

1.8V

≤ VDD ≤ 5.5V at -40°C ≤ TA ≤ +85°C (I-Temp)

4.5V

≤ VDD ≤ 5.5V at -40°C ≤ TA ≤ +125°C (E-Temp) (Note 1)

RPU (SCL, SDA) = 1 k

Ω, CL (SCL, SDA) = 135 pF

Param

No.

Characteristic

Sym

Min

Typ

Max

Units Conditions

100

Clock High Time:

THIGH

100 kHz mode

4.0

—

µs

1.8V – 5.5V (I-Temp)

400 kHz mode

0.6

—

µs

2.7V – 5.5V (I-Temp)

1.7 MHz mode

0.12

—

µs

4.5V – 5.5V (E-Temp)

101

Clock Low Time:

TLOW

100 kHz mode

4.7

—

µs

1.8V – 5.5V (I-Temp)

400 kHz mode

1.3

—

µs

2.7V – 5.5V (I-Temp)

1.7 MHz mode

0.32

—

µs

4.5V – 5.5V (E-Temp)

102

SDA and SCL Rise Time:

(Note 1)

100 kHz mode

—

1000

1.8V – 5.5V (I-Temp)

400 kHz mode

20 + 0.1 CB(2)

—

300

2.7V – 5.5V (I-Temp)

1.7 MHz mode

—

160

4.5V – 5.5V (E-Temp)

103

SDA and SCL Fall Time:

(Note 1)

100 kHz mode

—

300

1.8V – 5.5V (I-Temp)

400 kHz mode

20 + 0.1 CB(2)

—

300

2.7V – 5.5V (I-Temp)

1.7 MHz mode

—

4.5V – 5.5V (E-Temp)

START Condition Setup Time:

TSU:STA

100 kHz mode

4.7

—

µs

1.8V – 5.5V (I-Temp)

400 kHz mode

0.6

—

µs

2.7V – 5.5V (I-Temp)

1.7 MHz mode

0.16

—

µs

4.5V – 5.5V (E-Temp)

START Condition Hold Time:

THD:STA

100 kHz mode

4.0

—

µs

1.8V – 5.5V (I-Temp)

400 kHz mode

0.6

—

µs

2.7V – 5.5V (I-Temp)

1.7 MHz mode

0.16

—

µs

4.5V – 5.5V (E-Temp)

106

Data Input Hold Time:

THD:DAT

100 kHz mode

—

3.45

µs

1.8V – 5.5V (I-Temp)

400 kHz mode

—

0.9

µs

2.7V – 5.5V (I-Temp)

1.7 MHz mode

—

0.15

µs

4.5V – 5.5V (E-Temp)

107

Data Input Setup Time:

TSU:DAT

100 kHz mode

250

—

1.8V – 5.5V (I-Temp)

400 kHz mode

100

—

2.7V – 5.5V (I-Temp)

1.7 MHz mode

0.01

—

µs

4.5V – 5.5V (E-Temp)

STOP Condition Setup Time:

TSU:STO

100 kHz mode

4.0

—

µs

1.8V – 5.5V (I-Temp)

400 kHz mode

0.6

—

µs

2.7V – 5.5V (I-Temp)

1.7 MHz mode

0.16

—

µs

4.5V – 5.5V (E-Temp)

Note 1: This parameter is characterized, not 100% tested.

2: CB is specified to be from 10 to 400 pF.

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