0.3 Inch DIL IC Sockets 18 Pin
These 0.3 inch DIL IC Sockets are sold with either 8, 14, 16, 18, 20, 24 or 28 pins. The...
The MCP23017 (HCCOIC0048) IC provides 16-bit, general purpose parallel I/O expansion for I2C bus applications. It consists of multiple 8-bit configuration registers for input, output and polarity selection. The system master can enable the I/Os as either inputs or outputs by writing the I/O configuration bits (IODIRA/B)...
The MCP23017 (HCCOIC0048) IC provides 16-bit, general purpose parallel I/O expansion for I2C bus applications. It consists of multiple 8-bit configuration registers for input, output and polarity selection. The system master can enable the I/Os as either inputs or outputs by writing the I/O configuration bits (IODIRA/B). The data for each input or output is kept in the corresponding input or output register. The polarity of the Input Port register can be inverted with the Polarity Inversion register. All registers can be read by the
system master. The 16-bit I/O port functionally consists of two 8-bit ports (PORTA and PORTB). The MCP23017 can be
configured to operate in the 8-bit or 16-bit modes.
There are two interrupt pins, INTA and INTB, that can be associated with their respective ports, or can be logically OR’ed together so that both pins will activate if either port causes an interrupt. The interrupt output can be configured to activate under two conditions (mutually exclusive):
The device has 3 configurable I2C slave address pins allowing for multiple devices to be connected to the same I2C bus. Finally a very wide operating voltage range means the MCP23017 can be directly interfaced to both 3.3V and 5V devices.
Features:
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