MCP23S18T-E/MJ Microchip Technology, MCP23S18T-E/MJ Datasheet - Page 22

• Manufacturer Part Number: MCP23S18T-E/MJ
• Description: 16-bit Input/Output Expander, I2C Interface, Pb-free 24 QFN 4x4mm T/R
• Manufacturer: Microchip Technology

Specifications of MCP23S18T-E/MJ

• Interface: SPI
• Number Of I /o: 16
• 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: 24-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

MCP23018/MCP23S18
1.6.5
The INTCON register controls how the associated pin
value is compared for the interrupt-on-change feature.
If a bit is set, the corresponding I/O pin is compared
against the associated bit in the DEFVAL register. If a
bit value is clear, the corresponding I/O pin is compared
against the previous value.
REGISTER 1-7:
DS22103A-page 22
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-0
R/W-0
IOC7
INTERRUPT CONTROL REGISTER
IOC7:IOC0: Controls how the associated pin value is compared for interrupt-on-change <7:0>.
1 = Pin value is compared against the associated bit is DEFVAL register
0 = Pin value is compared against the previous pin value.
Refer to INTCON and GPINTEN.
R/W-0
IOC6
INTCON – INTERRUPT-ON-CHANGE CONTROL REGISTER
W = Writable bit
‘1’ = Bit is set
R/W-0
IOC5
R/W-0
IOC4
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-0
IOC3
R/W-0
IOC2
© 2008 Microchip Technology Inc.
x = Bit is unknown
R/W-0
IOC1
R/W-0
IOC0
bit 0