MCP23S08-E/ML Microchip Technology, MCP23S08-E/ML Datasheet - Page 12

• 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
1.6.3
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:
DS21919E-page 12
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-0
GPINT7
R/W-0
INTERRUPT-ON-CHANGE
CONTROL (GPINTEN) REGISTER
GPINT7:GPINT0: General purpose I/O interrupt-on-change bits <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 GPINTEN.
GPINT6
R/W-0
GPINTEN – INTERRUPT-ON-CHANGE PINS (ADDR 0x02)
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
© 2007 Microchip Technology Inc.
x = Bit is unknown
GPINT1
R/W-0
GPINT0
R/W-0
bit 0