MCP23S17T-ESLASHSO datasheet(1/42 Pages) MICROCHIP | 16-Bit I/O Expander with Serial Interface

Part No.	MCP23S17T-E/SO

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 1

MCP23017/MCP23S17

Features

• 16-Bit Remote Bidirectional I/O Port:

- I/O pins default to input

• High-Speed I2C Interface (MCP23017):

-100 kHz

-400 kHz

-1.7 MHz

• High-Speed SPI Interface (MCP23S17):

- 10 MHz (maximum)

• Three Hardware Address Pins to Allow Up to

Eight Devices On the Bus

• Configurable Interrupt Output Pins:

- Configurable as active-high, active-low or

open-drain

• INTA and INTB Can Be Configured to Operate

Independently or Together

• Configurable Interrupt Source:

- Interrupt-on-change from configured register

defaults or pin changes

• Polarity Inversion Register to Configure the

Polarity of the Input Port Data

• External Reset Input

• Low Standby Current: 1 µA (max.)

• Operating Voltage:

- 1.8V to 5.5V @ -40°C to +85°C

- 2.7V to 5.5V @ -40°C to +85°C

- 4.5V to 5.5V @ -40°C to +125°C

Packages

• 28-pin QFN, 6 x 6 mm Body

• 28-pin SOIC, Wide, 7.50 mm Body

• 28-pin SPDIP, 300 mil Body

• 28-pin SSOP, 5.30 mm Body

Package Types

2

3

4

5

6

1

7

VSS

NC

15

16

17

18

19

20

21

GPA4

GPA3

GPA2

GPA1

GPA0

VDD

INTB

23

24

25

26

27

28

22

10 11

8 9

121314

GPB5

GPB6

GPB7

GPB4

INTA

GPB0

GPB1

GPB2

GPB3

INTA

GPB4

NC

GPB5

GPB6

GPB7

SCK

GPA7

GPA6

GPA5

GPA4

GPA3

GPA2

GPA1

GPA0

VDD

VSS

A2

A1

A0

SDA

• 1

2

3

4

5

6

7

8

9

10

11

12

13

14

28

27

26

25

24

23

22

21

20

19

18

17

16

15

INTB

RESET

EP

29 *

SPDIP

SSOP

SOIC

QFN

* Includes Exposed Thermal Pad; see Table 2-1.

2

3

4

5

6

1

7

VSS

CS

15

16

17

18

19

20

21

GPA4

GPA3

GPA2

GPA1

GPA0

VDD

INTB

23

24

25

26

27

28

22

10 11

8 9

121314

GPB5

GPB6

GPB7

GPB4

INTA

EP

29 *

GPB0

GPB1

GPB2

GPB3

INTA

GPB4

SO

CS

GPB5

GPB6

GPB7

SCK

GPA7

GPA6

GPA5

GPA4

GPA3

GPA2

GPA1

GPA0

VDD

VSS

A2

A1

A0

SI

• 1

2

3

4

5

6

7

8

9

10

11

12

13

14

28

27

26

25

24

23

22

21

20

19

18

17

16

15

INTB

RESET

MCP23S17

MCP23017

16-Bit I/O Expander with Serial Interface

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