MCP23009-E/SS Microchip Technology, MCP23009-E/SS Datasheet - Page 18

• Manufacturer Part Number: MCP23009-E/SS
• Description: IC I/O EXPANDER I2C 8B 20SSOP
• Manufacturer: Microchip Technology

Specifications of MCP23009-E/SS

• Package / Case: 20-SSOP
• Interface: I²C
• Number Of I /o: 8
• Interrupt Output: Yes
• Frequency - Clock: 3.4MHz
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Logic Family: Interface ICs
• Propagation Delay Time: 50 ns
• Operating Supply Voltage: 1.8 V to 5.5 V
• Power Dissipation: 700 mW
• Operating Temperature Range: - 40 C to + 125 C
• Input Voltage: 1.8 V to 5.5 V
• Logic Type: I/O Expander
• Maximum Clock Frequency: 10 MHz
• Maximum Operating Frequency: 3.4 MHz
• Mounting Style: SMD/SMT
• Output Current: 200 mA
• Output Voltage: 0.6 V to 4.8 V
• Chip Configuration: 8 Bit
• Bus Frequency: 3.4MHz
• Ic Interface Type: I2C
• No. Of I/o's: 8
• Supply Voltage Range: 1.8V To 5.5V
• Digital Ic Case Style: SSOP
• No. Of Pins: 20
• Interface Type: I2C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

MCP23009/MCP23S09
1.6.3
The GPINTEN register controls the interrupt-on-
change feature for each pin.
If a bit is set, the corresponding pin is enabled for
interrupt-on-change. The DEFVAL and INTCON
registers must also be configured if any pins are
enabled for interrupt-on-change.
REGISTER 1-3:
DS22121B-page 18
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-0
GPINT7
R/W-0
INTERRUPT-ON-CHANGE
CONTROL REGISTER
GPINT7:GPINT0: General purpose I/O interrupt-on-change pins <7:0>
1 = Enable GPIO input pin for interrupt-on-change event
0 = Disable GPIO input pin for interrupt-on-change event
Refer to INTCON and DEFVAL.
GPINT6
R/W-0
GPINTEN – INTERRUPT-ON-CHANGE PINS
W = Writable bit
‘1’ = Bit is set
GPINT5
R/W-0
GPINT4
R/W-0
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
GPINT3
R/W-0
GPINT2
R/W-0
© 2009 Microchip Technology Inc.
x = Bit is unknown
GPINT1
R/W-0
GPINT0
R/W-0
bit 0