MCP23018-E/SP Microchip Technology, MCP23018-E/SP Datasheet - Page 21

• Manufacturer Part Number: MCP23018-E/SP
• Description: IC I/O EXPANDER I2C 16B 28SDIP
• Manufacturer: Microchip Technology

Specifications of MCP23018-E/SP

• Package / Case: 28-DIP (0.300", 7.62mm)
• Interface: I²C
• Number Of I /o: 16
• Interrupt Output: Yes
• Frequency - Clock: 3.4MHz
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Through Hole
• Logic Family: MCP23018
• 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: Through Hole
• Output Current: 25 mA
• Output Voltage: 1.8 V to 4.5 V
• Chip Configuration: 16 Bit
• Bus Frequency: 3.4MHz
• Ic Interface Type: I2C
• No. Of I/o's: 16
• Supply Voltage Range: 1.8V To 5.5V
• Digital Ic Case Style: DIP
• No. Of Pins: 28
• Filter Terminals: DIP
• Rohs Compliant: Yes
• Delay Time: 50ns
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

1.6.4
The default comparison value is configured in the
DEFVAL register. If enabled (via GPINTEN and INT-
CON) to compare against the DEFVAL register, an
opposite value on the associated pin will cause an
interrupt to occur.
REGISTER 1-6:
© 2008 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-0
R/W-0
DEF7
DEFAULT COMPARE REGISTER
FOR INTERRUPT-ON-CHANGE
DEF7:DEF0: Sets the compare value for pins configured for interrupt-on-change from defaults <7:0>.
Refer to INTCON.
If the associated pin level is the opposite from the register bit, an interrupt occurs.
Refer to INTCON and GPINTEN.
R/W-0
DEF6
DEFVAL – DEFAULT VALUE REGISTER
W = Writable bit
‘1’ = Bit is set
R/W-0
DEF5
R/W-0
DEF4
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
MCP23018/MCP23S18
R/W-0
DEF3
R/W-0
DEF2
x = Bit is unknown
R/W-0
DEF1
DS22103A-page 21
R/W-0
DEF0
bit 0