Features
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USB 2.0 full speed
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User-Programmable keyboard matrix, scan code and macro keys
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4 sets of 8 x 20 keyboard matrix for Numlock and FN cases
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Up to 255 Custom/Macro keys
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Built-in KeyMouse
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AB
rotary encoder mapped keys
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Support
PS/2 command pass-through via USB port
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One external hot-plug PS/2 port supports PS/2 keyboard and
mouse including wheel mouse
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Supports USB selective suspend and remote wakeup
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Built-in oscillator and digital circuit. No external crystal is
needed
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Key controlled 8 general purpose output(GPO), 1 state control
output(SCO), 1 backlight PWM
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Support three FN control modes: Level, Toggle and Sticky
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Windows® application to design keyboard matrix
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Low profile QFN 56 pin package: 8x8mm 1.0 Max (LxWxH)
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Low
power consumption. 230uA (USB suspend) and 16 mA (USB operation)
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4.10 to 5.25V operating voltage
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Commercial
temperature range: 0°C to +70°C
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Custom
versions available in small and large quantities
Overview
The SK5102 is a USB keyboard and KeyMouse combo encoder with a
user-programmable keyboard matrix. The IC can be programmed to any keyboard
with four matrix tables for FN and NUMLOCK cases, so the IC is the best choice
for custom keyboard solution but with an off-the-shelf IC.
The SK5102 scans and encodes an 8-row by 20-column matrix. The
key press events are translated to keyboard and mouse report. The encoder gets
matrix information from on-chip flash matrix table. Sprintek provides Windows®
application FlexMatrix Editor and Programmer software to edit, download and
upload the matrix table.
The SK5102 scans AB rotary encoder inputs then map the rotation
events to two key locations in the key matrix.
The SK5102 provides an external PS/2 port that supports hot plug
and hot swap of PS/2 mouse including wheel mouse, and keyboard devices.
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