MCP23018-E/SO Microchip Technology, MCP23018-E/SO Datasheet - Page 28

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

Specifications of MCP23018-E/SO

• 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: Surface Mount
• Package / Case: 28-SOIC (7.5mm Width)
• 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: SOIC
• No. Of Pins: 28
• Termination Type: SMD
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Delay Time: 50ns
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

MCP23018/MCP23S18
1.6.10
The GPIO register reflects the value on the port.
Reading from this register reads the port. Writing to this
register modifies the Output Latch (OLAT) register.
REGISTER 1-12:
DS22103A-page 28
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-0
R/W-0
GP7
PORT REGISTER
GP7:GP0: Reflects the logic level on the pins <7:0>.
1 = Logic-high.
0 = Logic-low.
R/W-0
GP6
GPIO – GENERAL PURPOSE I/O PORT REGISTER
W = Writable bit
‘1’ = Bit is set
R/W-0
GP5
R/W-0
GP4
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-0
GP3
R/W-0
GP2
© 2008 Microchip Technology Inc.
x = Bit is unknown
R/W-0
GP1
R/W-0
GP0
bit 0