The SK5220 is an ultra-low power (0.3uA) SMBus I2C interface keyboard encoder with 1 PWM backlight and 9 LEDs control. It’s the best choice for customized keyboard design for battery powered tablet / laptop / docking station / Instrument. The SK5220 deploys Sprintek FlexMatrix™ technology for users to upgrade firmware in the field.
The SK5220 scans and encodes an 8-row by 16-column matrix. The key press events are translated to keyboard event report.
The SK5220 provides command-controlled PWM for backlight LED PWM brightness control.
The SK5220 provides an external PS/2 port that supports hot plug and hot swap of PS/2 devices such as touchpad, pointing stick, mouse including wheel mice. The host can send commands via SK5220 PS/2 command relay feature to the external PS/2 device to change default settings.