: It controls the motherboard's power sequencing and battery charging cycles.
To isolate an IT8995E-128 failure state, verify the following pins using an oscilloscope or digital multimeter: Measurement Step Target Pin Function Group Expected Value VCC / VSTB Pins +3.3V DC Must be present immediately when the charger is connected. 2. Clock Oscillation Crystal Oscillator Input 32.768 kHz Validates internal clock tree execution state. 3. Hardware Reset WRST# / EC_RST# High ( 3.3V ) If stuck low ( 0V ), the chip remains locked in reset state. 4. Trigger Out Toggles 3.3V →right arrow 0V →right arrow 3.3V Pulses low when the physical laptop power key is pressed. Sourcing and Replacement Guidelines
Fans spin at 100% continuously, or do not spin at all, leading to rapid CPU overheating. Diagnostic Steps
The "Single-Chip USB-C PD Controller" function indicates that the IT8995E-128 handles the complex negotiation required for . It enables features like: it8995e 128 datasheet
According to component distributors and hardware analysis, the IT8995E-128 is more than just a basic I/O controller. Its design is built around two primary functional pillars: and USB-C Power Delivery (PD) with Integrated Power Management .
The technical specifications, pin structure, application use cases, and repair methodologies typically outlined in an provide a vital blueprint for hardware engineering and component-level repair. Key Technical Specifications
The chip provides which can be individually configured as inputs or outputs via software. In a laptop, these are used for tasks such as reading the lid switch state, controlling LEDs, or interfacing with simple sensors. : It controls the motherboard's power sequencing and
A product overview can be found on Scribd , covering basic footprint and symbol data.
LQFP-128 / TQFP-128 (Low Profile Quad Flat Package, 128 pins) 128 KB internal eFlash memory Package Dimensions Standardized pitch and high-density pin placement Primary Applications
From a detailed analysis of repair logs on the forum for the ASUS X441NC motherboard, the following pins have been mapped: Clock Oscillation Crystal Oscillator Input 32
: Controls SMBus communication with the smart battery pack to govern charging voltage and monitor battery health metrics.
Note: If replacing this chip, ensure you have the correct firmware, as it may not automatically pull code from the BIOS upon assembly. IT8995E-128/CXA ITE - IC Components
While the exact pinout can vary slightly depending on the specific motherboard implementation, 128-pin ITE embedded controllers generally follow a standardized grouping strategy: Common Signal Names Description VSTBY, VCC, AVCC, VSS, AGND
: Fully lead-free and RoHS compliant . Core Functional Responsibilities
The is an embedded multi-controller (EC) manufactured by ITE Tech. Inc. , commonly used in laptops and personal electronics for power management, keyboard control, and system monitoring. It is a high-performance integrated circuit (IC) known for balancing power efficiency with complex task handling. Technical Overview