MCP23016T-I/SS Microchip Technology, MCP23016T-I/SS Datasheet - Page 9

• Manufacturer Part Number: MCP23016T-I/SS
• Description: IC I/O EXPANDER I2C 16B 28SSOP
• Manufacturer: Microchip Technology

Specifications of MCP23016T-I/SS

• Interface: I²C
• Number Of I /o: 16
• Interrupt Output: Yes
• Frequency - Clock: 400kHz
• Voltage - Supply: 2 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-SSOP
• Includes: POR
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1.7.4
Two registers control the direction of data I/O:
• IODIR0 (controls GP0)
• IODIR1 (controls GP1)
When a bit in these registers is set, the corresponding
pin becomes an input. Otherwise, it becomes an
output. At Power-on Reset, the device ports are
configured as inputs.
REGISTER 1-7:
REGISTER 1-8:
© 2007 Microchip Technology Inc.
bit 7-0
bit 7-0
I/O DIRECTION REGISTERS
IOD0.0:IO0.7:
1 = Input
0 = Output
IOD1.0:IO1.7:
1 = Input
0 = Output
Legend:
R = Readable bit
- n = Value at POR
Legend:
R = Readable bit
- n = Value at POR
IOD0.7
IOD1.7
R/W-1
R/W-1
bit 7
bit 7
IODIR0 - I/O DIRECTION REGISTER 0
IODIR1 - I/O DIRECTION REGISTER 1
IOD0.6
IOD1.6
R/W-1
R/W-1
Controls the direction of data I/O
Controls the direction of data I/O
IOD0.5
IOD1.5
R/W-1
R/W-1
W = Writable bit
‘1’ = Bit is set
W = Writable bit
‘1’ = Bit is set
IOD0.4
IOD1.4
R/W-1
R/W-1
IOD0.3
IOD1.3
R/W-1
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-1
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
IOD0.2
IOD1.2
R/W-1
R/W-1
x = Bit is unknown
x = Bit is unknown
IOD0.1
IOD1.1
R/W-1
R/W-1
MCP23016
IOD0.0
IOD1.0
R/W-1
R/W-1
bit 0
bit 0
DS20090C-page 9