LM8330 Description
The LM8330 I/O - Expander and Keypad Controller is a dedicated device designed to unburden a host processor from scanning a matrix-addressed keypad and to provide flexible and general purpose, host programmable input/output functions. Three independent Pulse Width Modulation (PWM) timer outputs are provided for dynamic LED brightness modulation. It municates with a host processor through an I2C-patible ACCESS.bus...
LM8330 Key Features
- 2 KEY FEATURES
- Keypad Matrices of up to of 8 x 12 Keys, Plus 8 Special Function (SF) Keys, for a Full 104 Key Support
- Supports General-purpose I/O Expansion on Pins Not Otherwise Used for Keypad or PWM Output
- Keypad Matrix and Dedicated Key Support
- 16-Event Keycode Buffer
- 4-Event Multiple Key Storage Registers
- Internal Oscillator, No External Clock Required
- I2C-patible ACCESS.bus Slave Interface Standard (100 kHz) and Fast (400 kHz) Modes
- 7-bit and 10-bit Addressing
- Programmable Slave Address