MCP23S08-E/ML Microchip Technology, MCP23S08-E/ML Datasheet - Page 18

• Manufacturer Part Number: MCP23S08-E/ML
• Description: IC, I/O EXPANDER, 8BIT, 10MHZ, QFN-20
• Manufacturer: Microchip Technology

Specifications of MCP23S08-E/ML

• Chip Configuration: 8 Bit
• Bus Frequency: 10MHz
• Ic Interface Type: SPI
• No. Of I/o's: 8
• Supply Voltage Range: 1.8V To 5.5V
• Digital Ic Case Style: QFN
• No. Of Pins: 20
• Interface: SPI
• Number Of I /o: 8
• Interrupt Output: Yes
• Frequency - Clock: 10MHz
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 20-VQFN Exposed Pad, 20-HVQFN, 20-SQFN, 20-DHVQFN
• Includes: POR
• Interface Type: SPI
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: GPIODM-KPLCD - BOARD DEMO LCD GPIO EXP KEYPAD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

MCP23008/MCP23S08
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:
DS21919E-page 18
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-0
ICP7
R-x
INTERRUPT CAPTURE (INTCAP)
REGISTER
ICP7:ICP0: These bits reflect 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 (ADDR 0x08)
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
© 2007 Microchip Technology Inc.
x = Bit is unknown
ICP1
R-x
ICP0
R-x
bit 0