MAX7370

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8 x 8 Key-Switch Controller and LED Driver/GPIOs with I²C Interface and High Level of ESD Protection

8 x 8 Key-Switch Controller with High Level of Integrated ESD Protection

Part Models
2
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Part Details

  • Monitors Up to 64 Keys
  • Integrated High-ESD Protection
    • ±8kV IEC 61000-4-2 Contact Discharge
    • ±15kV IEC 61000-4-2 Air-Gap Discharge
  • Keyscan Uses Static Matrix Monitoring for Low-EMI Operation
  • Four LED Driver Pins on COL7–COL4
  • 5V Tolerant, Open-Drain I/O Ports Capable of Constant-Current LED Drive
  • 256-Step PWM Individual LED Intensity-Control Accuracy
  • 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 Keypress and Release Debounce Time (2ms to 32ms)
  • Key-Switch Interrupt (active-low INT) on Each Debounced Event/FIFO Level, or End-of-Definable Time Period
  • 1.62V to 3.6V Operating Supply Voltage
  • Individually Programmable GPIOs to Two Logic Levels
  • 8-Channel Individual Programmable Level Translators
  • Provides Optional GPIOs on all ROW_ and COL_ Pins
  • Supports Hot Insertion
  • 400kbps, 5.5V Tolerant I²C Serial Interface with Selectable Bus Timeout
MAX7370
8 x 8 Key-Switch Controller and LED Driver/GPIOs with I²C Interface and High Level of ESD Protection
MAX7370:Functional Block Diagram
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