ISG4100x Datasheet (Imagis Semiconductor) - Mobile Key Scan I/O companion

ISG4100x, Mobile Key Scan I/O companion

The ISG4100x Mobile Key Scan I/O companion is a dedicated device to unburden a host processor from scanning a matrix-addressed keypad.

It communicates with the host through an I2Ccompatible or SPI-compatible access bus interface.

An interrupt output is available for signaling key-press events.

In th

ISG4100x Features

* 1.2.1. z z z z z z z z z z z z Features Supports keypad matrices of up to 8 x 8 keys (Max 64 keys) Supports multiple-key detection Supports long key-press detection Key-Scan Event storage in a FIFO buffer for up to 16 events Hardware Interrupt at the FIFO Level Auto-Sleep and Auto-WakeUp to minimiz