LM8322 Description
The LM8322 Mobile I/O panion is a dedicated device to unburden a host processor from scanning a matrix-addressed keypad. In addition, the LM8322 provides general-purpose I/O expansion, and PWM outputs useful for dynamic LED brightness modulation. It municates with the host through an I2C-patible ACCESS.bus interface.
LM8322 Key Features
- Supports keypad matrices of up to 8 × 12 keys plus 8 special-function (SF) keys for a total of 104 keys. SF keys pull ke
- Supports I2C-patible ACCESS.bus interface in slave mode up to 400 kHz (Fast-mode)