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

Key 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.

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Other Datasheets by Microchip Technology

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ECE1117 Multi-Function BC-Link/SMBus Companion Device
ECE1088 GPIO Expansion via SMBus or BC-Link Bus
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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ECE1105 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 address selection • 3.3V Operation - 48-Pin, QFN RoHS Compliant package - 0.