MCP23S09 Microchip Technology, MCP23S09 Datasheet - Page 4

• Manufacturer Part Number: MCP23S09
• Description: 8-Bit I/O Expander
• Manufacturer: Microchip Technology

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