Datasheet Summary
GPIO Expansion, PS/2, 23x8 Keyscan Matrix Interface via SMBus or BC-Link Bus
Highlights
Features
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 addressable I/O Pins
- BC-Link Interconnect Bus
- Link to embedded controller
- SMBus Interconnect
- One of two...