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Key Switch Controller & LED Driver, 1.62 V to 3.6 V in, TQFN-40Product OverviewI2C-interfaced key-switch controller and LED driver/GPIOs with integrated ESDprotection.14V tolerant, open-drain I/O ports capable of constant-current LED driveRotary switch-capable input pair (PORT6, PORT7)256-step PWM individual LED intensity controlIndividual LED blink rates and common LED fade in/out rates from 256ms to 4096msFIFO queues up to 16 debounced key eventsUser-configurable key debounce (9ms to 40ms)Keyscan uses static matrix monitoring for low EMI operationMonitors up to 64 keys400Kbps, +5.5V tolerant 2-wire serial interface with selectable bus timeoutFour I2C address choicesProduct InformationIC Function: Key Switch Controller & LED DriverSupply Voltage Min: 1.62VSupply Voltage Max: 3.6VIC Package Type: TQFNNo. of Pins: 40PinsOperating Temperature Min: -40°COperating Temperature Max: 85°CProduct Range: -MSL: MSL 1 - Unlimited
