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The MAX7359ETG+ chip, manufactured by Maxim Integrated, is a specialized microprocessor peripheral designed for low-noise key-switch control. It is primarily used in applications requiring a high level of integration and low electromagnetic interference (EMI). This chip is ideal for portable consumer electronics such as cell phones, handheld gaming devices, personal digital assistants (PDAs), and other portable devices. Its small form factor, with options for a 24-pin TQFN package or a 25-bump WLP package, makes it suitable for compact designs. The MAX7359 operates over a wide temperature range of -40°C to +85°C, ensuring reliability in various environments.
The chip can monitor up to 64 key switches with optional autorepeat functionality, and it features a 16-byte FIFO for key events. Additionally, it can provide up to six open-drain logic outputs, offering flexibility in design. The MAX7359ETG+ operates on a 2-wire interface, simplifying the connection to a microprocessor and reducing the overall system cost.
Key applications of the MAX7359ETG+ include:
- Mobile phones for touch button control
- Handheld gaming consoles for managing game controls
- PDAs for user interface interaction
- Portable media players for menu navigation
- Any other portable devices requiring compact and low-noise button input solutions
Its low-EMI feature is crucial for maintaining signal integrity and preventing interference with other components in the device. The MAX7359ETG+\'s ability to handle multiple key switches and provide GPIOs makes it a versatile choice for designers looking to implement user input functionality in their portable devices.
For more detailed information and to download the datasheet, you can visit the official Analog Devices website or other electronic component databases.
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