Devices in this family are used in conjunction with microcontrollers, microprocessors, or similar devices for the purpose of increasing the number of signal connections available for connecting peripheral devices. The typical concept of operation involves the use of serial communications requiring only a few I/O lines on the host device to read/write the status of many input/output pins on the expander device. The technique exchanges speed of communication for increased connectivity, and is best suited for applications where fast response is not critical, such as in many human interface applications.
DigiKey Programmable: For verified products, DigiKey can program/flash your compiled code or configuration variables prior to shipping. For unverified products, please enquire with ProgCent.Techs@digikey.com.
Number of I/O: Indicates the number of device pins that are capable of being used for general purpose digital input/output functions.
Interface: Defines the communication protocols used to interact with the device.
Interrupt Output: Indicates whether or not an expander provides an output that allows notifying a controlling device of events such as input state changes.
Features: Special performance and safety characteristics built into the part.
Output Type: Indicates what kind of output the divice is designed to produce.
Current - Output Source/Sink: The maximum recommended current flow through a device’s output pin. Multiple values reflect ratings that differ depending on direction of current flow.
Clock Frequency: Indicates maximum rated operating frequency of the part.
Voltage - Supply: Indicates the span over which a device’s operational supply voltage may be permitted to vary.
Operating Temperature: Recommended operating temperature, typically given in a range or as a maximum. Exceeding these temperatures may affect performance or damage the device and other system components.
Mounting Type: Indicates how the device is attached.
Package / Case: Indicates the type of protective case used on an electronic component to allow easy handling, installation, and protection. This selection was determined to be the closest industry standard applicable to the supplier’s device packaging. Typically it is best to check the actual dimensions from the datasheet rather than depend on this terminology when designing your circuit.
Supplier Device Package: This is what the manufacturer calls the package of this device. They are manufacturer specific. It is typically best to use the actual dimensions from the datasheets rather than to go by this terminology when designing your circuit.
|MFR PART #||PI4IOE5V6416ZDEX|
|DIGI-KEY PART #||PI4IOE5V6416ZDEXDITR-ND - Tape & Reel (TR)|
|DESCRIPTION||IC XPNDR 400KHZ I2C 24TQFN|
|MFR PART #||PI4IOE5V6416LEX|
|DIGI-KEY PART #||PI4IOE5V6416LEXDITR-ND - Tape & Reel (TR)|
|DESCRIPTION||IC XPNDR 400KHZ I2C 24TSSOP|
|MFR PART #||MCP23017-E/SP|
|DIGI-KEY PART #||MCP23017-E/SP-ND|
|DESCRIPTION||IC XPNDR 1.7MHZ I2C 28SDIP|
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