The chip is adaptable to various voltage levels, allowing it to interface with different hardware generations. Robust Signal Integrity:
Replicated power button signal sent out to the main PCH/Chipset. Clock signal matching host bus timing. EC_SCI# / EC_SMI#
), this chip is noted for specific version compatibility; suffixes like "CXA" indicate specific firmware or hardware revisions. IC Components Repair & Replacement
: Power button input. Drops to 0V when the user presses the power button, signaling the EC to initiate the boot sequence.
Because the IT8995E-128 controls the initial boot phases, its failure completely paralyzes a computer. Symptom: Laptop is Completely Dead (No Power) : Verify if 3.3V3.3 cap V is present on the EC power pins. Check EC_RST# : Ensure the reset pin is sitting at a clean 3.3V3.3 cap V . If it stays low ( ), the controller remains trapped in a reset loop. it8995e 128 datasheet
The chip is classified as a , integrating both communication and power regulation. For engineers designing systems that use a single USB-C port for charging and data, this chip provides a complete, consolidated solution.
What specific is the device showing (e.g., completely dead, no keyboard response, fan spinning at full speed)?
Please refer to the official ITE datasheet for exact tolerances. Below are standard architectural limitations for this class of I/O controllers. Minimum Value Maximum Value Input Pin Voltage (5V Tolerant) Input Pin Voltage (3.3V Standard) VCC + 0.3 V Storage Temperature Ambient Operating Temperature Conclusion
The holds the EC firmware, which often gets corrupted due to bad BIOS updates or power surges. The chip is adaptable to various voltage levels,
: Acts as a Keyboard Controller (KBC), handles power management, and performs thermal monitoring and peripheral interfacing.
Engineered with strong electro-magnetic interference (EMI) resistance and excellent heat dissipation, ensuring stable performance.
If you're repairing a motherboard, I can help you identify the or suggest programming tools compatible with the ITE IT8995E-128. IT8995E-128/CXA ITE - IC Components
, meeting international standards for lead-free electronic components. Common Variants : You may encounter specific versions like the IT8995E-128/CXA , which are often found in modern portable systems. IC Components Technical Application EC_SCI# / EC_SMI# ), this chip is noted
: Uses the Low Pin Count (LPC) interface or the newer Enhanced Serial Peripheral Interface (eSPI) to communicate directly with the Southbridge, PCH, or CPU. Primary Functions
Signals to the system that all major voltage rails are stable. 4. Hardware Repair & Troubleshooting Guide
: Industrial LQFP-128 (Low-profile Quad Flat Package), meaning it has 128 pins—32 on each side.