LM8328

• KEY FEATURES
  • Internal RC Oscillator, No External Clock Required
  • Internal PWM Clock Generation, No External Clock Required
  • External Reset for System Control
  • Programmable I²C-compatible ACCESS.bus Address (Default 0x88)
  • Support for Keypad Matrices of up to of 8 x 12 Keys, Plus 8 Special Function (SF) Keys, for a Full 104 Key Support
  • I²C-compatible ACCESS.bus Slave Interface at 100 kHz (Standard-Mode) and 400 kHz (Fast-Mode)
  • Three Host-programmable PWM Outputs for Smooth LED Brightness Modulation
  • Supports General-purpose I/O Expansion on Pins Not Otherwise Used for Keypad or PWM Output
  • 15 byte Key Event Buffer
  • Multiple Key Event Storage
  • Key Events, Errors, and Dedicated Hardware Interrupts Request Host Service by Asserting an IRQ Output
  • Automatic HALT Mode for Low Power Operation
  • Wake-up from HALT Mode on Any Interface (Rising Edge, Falling Edge or Pulse)
  • Three PWM Outputs with Dedicated Script Buffer for up to 32 Commands
  • Register-based Command Interpreter with Auto Increment Address
• HOST-CONTROLLED FEATURES
  • Reset Input for System Control
  • PWM Scripting for Three PWM Outputs
  • Period of Inactivity that Triggers Entry into HALT Mode
  • Debounce Time for Reliable Key Event Polling
  • Configuration of General Purpose I/O Ports
  • Various Initialization Options (Keypad Size, etc.)
• KEY DEVICE FEATURES
  • 1.8V ± 10% Single-supply Operation
  • On-chip Power-on Reset (POR)
  • Watchdog Timer
  • −40°C to +85°C Temperature Range
  • 25-pin DSBGA Package

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