MCP23009-E/MG Microchip Technology, MCP23009-E/MG Datasheet - Page 24
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MCP23009-E/MG
Manufacturer Part Number
MCP23009-E/MG
Description
IC I/O EXPANDER I2C 8B 16QFN
Manufacturer
Microchip Technology
Type
I/O Expanderr
Specifications of MCP23009-E/MG
Package / Case
16-QFN
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
Operating Supply Voltage
1.8 V to 5.5 V
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Chip Configuration
8bit
Bus Frequency
3.4MHz
Interface Type
I2C, Serial, SPI
No. Of I/o's
9
Supply Voltage Range
1.8V To 5.5V
Digital Ic Case Style
QFN
No. Of Pins
16
Svhc
No SVHC (15-Dec-2010)
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
1.6.9
The INTCAP register captures the GPIO port value at
the time the interrupt occurred. The register is ‘read
only’ and is updated only when an interrupt occurs. The
register will remain unchanged until the interrupt is
cleared via a read of INTCAP or GPIO.
REGISTER 1-9:
DS22121B-page 24
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-0
ICP7
R-x
INTERRUPT CAPTURE REGISTER
ICP7:ICP0: Reflects the logic level on the port pins at the time of interrupt due to pin change <7:0>.
1 = Logic-high
0 = Logic-low
ICP6
R-x
INTCAP – INTERRUPT CAPTURED VALUE FOR PORT REGISTER
W = Writable bit
‘1’ = Bit is set
ICP5
R-x
ICP4
R-x
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
ICP3
R-x
ICP2
R-x
© 2009 Microchip Technology Inc.
x = Bit is unknown
ICP1
R-x
ICP0
R-x
bit 0