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MCP23009TESS Datasheet(PDF) 4 Page - Microchip Technology

Part # MCP23009TESS
Description  8-Bit I/O Expander with Open-Drain Outputs
PDF  50 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP23009TESS Datasheet(HTML) 4 Page - Microchip Technology

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MCP23009/MCP23S09
DS22121B-page 4
© 2009 Microchip Technology Inc.
1.1
Pin Descriptions
TABLE 1-1:
I2C PINOUT DESCRIPTION (MCP23009)
Pin
Name
18LD
PDIP/
SOIC
16LD
QFN
20LD
SSOP
Pin
Type
Standard Function
VDD
13
1
P
Power
VSS
18
1
20
P
Ground
SCL
3
4
3
I
Serial clock input
SDA
4
5
4
I/O
Serial data I/O
ADDR
5
6
5
I
Hardware address pin allows up to 8 slave devices on the bus
RESET
6
7
6
I
Hardware reset
INT
7
8
7
O
Interrupt output for port. Can be configured as active high, active low,
or open-drain.
GP0
8
9
8
I/O
Bidirectional I/O Pin (5.5 volt tolerant inputs; open-drain outputs). Can
be enabled for interrupt on change, and/or internal pull-up resistor.
GP1
9
10
9
I/O
Bidirectional I/O Pin (5.5 volt tolerant inputs; open-drain outputs). Can
be enabled for interrupt on change, and/or internal pull-up resistor.
GP2
10
11
12
I/O
Bidirectional I/O Pin (5.5 volt tolerant inputs; open-drain outputs). Can
be enabled for interrupt on change, and/or internal pull-up resistor.
GP3
11
12
13
I/O
Bidirectional I/O Pin (5.5 volt tolerant inputs; open-drain outputs). Can
be enabled for interrupt on change, and/or internal pull-up resistor.
GP4
12
13
14
I/O
Bidirectional I/O Pin (5.5 volt tolerant inputs; open-drain outputs). Can
be enabled for interrupt on change, and/or internal pull-up resistor.
GP5
13
14
15
I/O
Bidirectional I/O Pin (5.5 volt tolerant inputs; open-drain outputs). Can
be enabled for interrupt on change, and/or internal pull-up resistor.
GP6
14
15
16
I/O
Bidirectional I/O Pin (5.5 volt tolerant inputs; open-drain outputs). Can
be enabled for interrupt on change, and/or internal pull-up resistor.
GP7
15
16
17
I/O
Bidirectional I/O Pin (5.5 volt tolerant inputs; open-drain outputs). Can
be enabled for interrupt on change, and/or internal pull-up resistor.
NC
2, 16,
17
22,10,
11,19,1
8
Not connected
EP
—
17
Exposed Thermal Pad (EP). Do not electrically connect. Can connect
to VSS.



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