ECE1105 Datasheet 23 x 8 Keyscan Matrix Interface via SMBus or BC-Link Bus

Manufacturer: Microchip Technology

Overview: ECE1105 GPIO Expansion, PS/2, 23x8 Keyscan Matrix Interface via SMBus or BC-Link Bus.

Datasheet Details

Part number	ECE1105
Manufacturer	Microchip Technology
File Size	623.34 KB
Description	23 x 8 Keyscan Matrix Interface via SMBus or BC-Link Bus
Download	ECE1105 Download (PDF)

The ECE1105 is a 48-Pin 3.3V Keyboard Scan Expansion or GPIO Expansion device. The device supports a keyboard scan matrix of 23x8 and has two PS/2 ports for touchpad and/or pointer stick support. The device is connected to a Master via the BC-Link interface or via the SMBus. KSI and KSO signals are multiplexed with GPIOs.
Up to 23x8 Keyboard Scan Matrix.
Two PS/2 Ports - Touch Pad Support - Pointer Stick Support.
40 Multiplexed General Purpose I/O pins - All are MCU.

Part Number	Description
ECE1117	Multi-Function BC-Link/SMBus Companion Device
ECE1088	GPIO Expansion via SMBus or BC-Link Bus
ECE1099	23 x 8 Keyscan Matrix Interface via SMBus or BC-Link Bus
ECE5028	Advanced I/O BC-Link Companion