MCP23S17 datasheet(7/42 Pages) MICROCHIP

Part #	MCP23S17

Description	16-Bit I/O Expander with Serial Interface

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Manufacturer	MICROCHIP [Microchip Technology]

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 2005-2016 Microchip Technology Inc.

DS20001952C-page 7

MCP23017/MCP23S17

90

START Condition Setup Time:

TSU:STA

100 kHz mode

4.7

—

µs

1.8V – 5.5V

400 kHz mode

0.6

—

µs

2.7V – 5.5V

1.7 MHz mode

0.16

—

µs

4.5V – 5.5V

91

START Condition Hold Time:

THD:STA

100 kHz mode

4.0

—

µs

1.8V – 5.5V

400 kHz mode

0.6

—

µs

2.7V – 5.5V

1.7 MHz mode

0.16

—

µs

4.5V – 5.5V

106

Data Input Hold Time:

THD:DAT

100 kHz mode

0

—

3.45

µs

1.8V – 5.5V

400 kHz mode

0

—

0.9

µs

2.7V – 5.5V

1.7 MHz mode

0

—

0.15

µs

4.5V – 5.5V

107

Data Input Setup Time:

TSU:DAT

100 kHz mode

250

—

ns

1.8V – 5.5V

400 kHz mode

100

—

ns

2.7V – 5.5V

1.7 MHz mode

0.01

—

µs

4.5V – 5.5V

92

Stop Condition Setup Time:

TSU:STO

100 kHz mode

4.0

—

µs

1.8V – 5.5V

400 kHz mode

0.6

—

µs

2.7V – 5.5V

1.7 MHz mode

0.16

—

µs

4.5V–5.5V

109

Output Valid From Clock:

TAA

100 kHz mode

—

3.45

µs

1.8V – 5.5V

400 kHz mode

—

0.9

µs

2.7V – 5.5V

1.7 MHz mode

—

0.18

µs

4.5V – 5.5V

110

Bus Free Time:

TBUF

100 kHz mode

4.7

—

µs

1.8V – 5.5V

400 kHz mode

1.3

—

µs

2.7V – 5.5V

1.7 MHz mode

N/A

—

N/A

µs

4.5V – 5.5V

111

Bus Capacitive Loading:

CB

100 kHz and 400 kHz

—

400

pF

Note 1

1.7 MHz

—

100

pF

Note 1

112

Input Filter Spike Suppression

(SDA and SCL):

TSP

100 kHz and 400 kHz

—

50

ns

1.7 MHz

—

10

ns

Spike suppression off

TABLE 1-3:

I2C BUS DATA REQUIREMENTS (CONTINUED)

I2C Interface AC Characteristics: Unless otherwise noted, 1.8V

V

DD  5.5V at -40C  TA  +125C, RPU (SCL,

SDA) = 1 k

, C

L (SCL, SDA) = 135 pF

Param.

No.

Characteristic

Sym.

Min.

Typ.

Max. Units

Conditions

Note 1:

This parameter is characterized, not 100% tested.

2:

CB is specified to be from 10 to 400 pF.

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