It manages low-level system functions including keyboard input, touchpad interfacing, thermal monitoring (fan control), and power sequencing. Package Type: It typically comes in a 156-pin VFQFN
: Unlike some other controllers, it does not feature internal programmable flash memory. Instead, it reads its operating commands from an external EC ROM (SPI Flash) or the main BIOS chip.
Measure resistance to ground on the 3.3V VCC pins.
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