MAX7317AEE+T

General Description
The MAX7360 I2C-interfaced peripheral provides micro processors with management of up to 64 key switches, with an additional eight LED drivers/GPIOs that feature constant-current, PWM intensity control, and rotary switch control options.
The key-switch drivers interface with metallic or resistive switches with on-resistances up to 5kI. Key inputs are monitored statically, not dynamically, to ensure low-EMI operation.
The MAX7360 features autosleep and autowake modes to further minimize the power consumption of the device.
The autosleep feature puts the device in a low-power state (1FA typ) after a sleep timeout period.
The autowake feature configures the MAX7360 to return to normal operating mode from sleep upon a keypress.
Features Integrated ESD Protection ±8kV IEC 61000-4-2 Contact Discharge ±15kV IEC 61000-4-2 Air-Gap Discharge +14V Tolerant, Open-Drain I/O Ports Capable of Constant-Current LED Drive Rotary Switch-Capable Input Pair (PORT6, PORT7) 256-Step PWM Individual LED Intensity Control Individual LED Blink Rates and Common LED Fade In/Out Rates from 256ms to 4096ms FIFO Queues Up to 16 Debounced Key Events User-Configurable Key Debounce (9ms to 40ms) Keyscan Uses Static Matrix Monitoring for Low EMI Operation +1.62V to +3.6V Operation Monitors Up to 64 Keys Key-Switch Interrupt (INTK) on Each Debounced Event/FIFO Level, or End of Definable Time Period Port Interrupt (INTI) for Input Ports for Special-Key Functions 400kbps, +5.5V Tolerant 2-Wire Serial Interface with Selectable Bus Timeout Four I2C Address ChoicesApplications Cell Phones PDAs Handheld Games Portable Consumer Electronics Printers Instrumentation