MAX7359 2-Wire Interfaced Low-EMI Key Switch Controller/GPO

The MAX7359 IC interfaced peripheral provides Microprocessors with management of up to 64 key switches. Key codes are generated for each press and release of a key for easier implementation of multiple key entries. Key inputs are monitored statically, not dynamically, to ensure low-EMI operation. The switches CAN be metallic or resistive (carbon) with up to 5k of resistance.
The MAX7359 features autosleep and autowake to further minimize the power consumption of the device. The autosleep feature puts the device in a low-power state (1A typ) after a sleep timeout period. The autowake feature configures the MAX7359 to return to normal operating mode from sleep upon a key press.
The key controller debounces and maintains a FIFO of key-press and release events (including autorepeat, if enabled). An interrupt (active-low INT) output CAN be configured to alert key presses either as they occur, or at maximum rate.
Any of the column drivers (COL2/PORT2COL7/PORT7) or the active-low INT, if not used, CAN function as a general-purpose output (GPO).
The MAX7359 is offered in a small 24-pin TQFN (3.5mm x 3.5mm) package for cell phones, pocket PCs, and other portable consumer electronic applications. The MAX7359 operates over the -40C to +85C temperature range.
By Maxim Integrated Products
MAX7359 's PackagesMAX7359 's pdf datasheet

MAX7359 Pinout, Pinouts
MAX7359 pinout,Pin out
This is one package pinout of MAX7359,If you need more pinouts please download MAX7359's pdf datasheet.

MAX7359 Application circuits
MAX7359 circuits
This is one application circuit of MAX7359,If you need more circuits,please download MAX7359's pdf datasheet.

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