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  Microchip Technology Semiconductor Electronic Components Datasheet  


MCP23S09

8-Bit I/O Expander



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MCP23S09 pdf
MCP23009/MCP23S09
8-Bit I/O Expander with Open-Drain Outputs
Features:
• 8-Bit Remote Bidirectional I/O Port:
- I/O Pins Default to Input
• Open-Drain Outputs:
- 5.5V Tolerant
- 25 mA Sink Capable (per Pin)
- 200 mA Total
• High-Speed I2C™ Interface (MCP23009):
- 100 kHz
- 400 kHz
- 3.4 MHz
• High-Speed SPI Interface (MCP23S09):
- 10 MHz
• Single Hardware Address Pin (MCP23009):
- Voltage input to allow up to eight devices on
the bus
• Configurable Interrupt Output Pins:
- Configurable as active-high, active-low or
open-drain
Block Diagram
CS
SCK
SI
SO
MCP23S09
SPI
• Configurable Interrupt Source:
- Interrupt-on-Change from configured defaults
or pin change
• Polarity inversion register to configure the polarity
of the input port data
• External Reset Input
• Low Standby Current:
- 1 µA (-40°C TA +85°C)
- 6 µA (+85°C TA +125°C)
• Operating Voltage:
- 1.8V to 5.5V
• Available Packages:
- 16-Lead QFN (3x3x0.9 mm)
- 18-Lead PDIP (300 mil)
- 18-Lead SOIC (7.50 mm)
- 20-Lead SSOP (5.30 mm)
SCL
SDA
RESET
INT
ADDR
MCP23009
I2C™
Serializer/
Deserializer
Multi-Bit
Decode
Control
8
8
Configuration/
Control
Registers
GPIO
GP0
GP1
GP2
GP3
GP4
GP5
GP6
GP7
2009-2014 Microchip Technology Inc.
DS20002121C-page 1



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MCP23S09 pdf
MCP23009/MCP23S09
Package Types
VDD
NC
SCL
SDA
ADDR
RESET
INT
GP0
GP1
1
2
3
4
5
6
7
8
9
MCP23009
PDIP, SOIC
18 VSS
17 NC
16 NC
15 GP7
14 GP6
13 GP5
12 GP4
11 GP3
10 GP2
MCP23009
3 x 3 QFN*
16 15 14 13
VSS 1
12 GP3
NC 2
VDD 3
SCL 4
EP 11 GP2
17 10 GP1
9 GP0
567 8
MCP23009
SSOP
VDD
NC
SCL
SDA
ADDR
RESET
INT
GP0
GP1
NC
1
2
3
4
5
6
7
8
9
10
20 VSS
19 NC
18 NC
17 GP7
16 GP6
15 GP5
14 GP4
13 GP3
12 GP2
11 NC
VDD
NC
CS
SCK
SI
SO
RESET
INT
GP0
1
2
3
4
5
6
7
8
9
MCP23S09
PDIP/SOIC
18 VSS
17 NC
16 GP7
15 GP6
14 GP5
13 GP4
12 GP3
11 GP2
10 GP1
MCP23S09
3 x 3 QFN*
16 15 14 13
VSS 1
12 GP3
SCK 2
VDD 3
CS 4
EP 11 GP2
17 10 GP1
9 GP0
567 8
* Includes Exposed Thermal Pad (EP); see Tables 1-1 and 1-2.
DS20002121C-page 2
2009-2014 Microchip Technology Inc.



Part Number MCP23S09
Description 8-Bit I/O Expander
Maker Microchip Technology - Microchip Technology
Total Page 30 Pages
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MCP23S09 pdf
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