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The IQS7222D001QNR is a capacitive touch sensor interface from Azoteq, part of the ProxFusion series. It integrates 14 channels for mutual capacitance sensing and 8 channels for self-capacitance sensing. The device supports I2C communication and includes configurable general-purpose input/output pins. It operates within a supply voltage range of 1.71V to 3.5V and features a maximum supply current of 720µA. The component is housed in a 20-UFQFN package with exposed pads, measuring 3mm x 3mm, and is rated for an operating temperature range of -40°C to +85°C.
Verify the specific suffix 'QNR' against official documentation to confirm the tape-and-reel packaging configuration. Ensure compatibility with the required I2C bus speeds and check for any RoHS compliance details in the manufacturer's datasheet before finalizing procurement specifications.
Select this model when a high channel count combining mutual and self-capacitive sensing is required. The integrated proximity detection makes it suitable for applications needing gesture or near-field awareness. Confirm that the 20-QFN footprint fits the PCB layout constraints and that the I2C interface matches the system controller.
This component belongs to the IQS7222 family, which provides versatile touch control solutions. The 'D' variant specifically denotes the channel configuration supporting 14 mutual and 8 self-capacitive inputs. It is designed for embedded systems requiring robust touch and proximity functionality in a compact form factor.
Check for other suffixes within the IQS7222 series, such as IQS7222B or IQS7222C, which may offer different channel configurations or firmware options. Verify pin-to-pin compatibility if substituting with other QFN packages in the same product line.