The is a high-performance Embedded Controller (EC) and Keyboard Controller (KBC) designed by ITE Technology, primarily used in laptop motherboards (e.g., ASUS models like X510U, X543U). Technical Overview Function : Manages low-level I/O processes. Memory : Features 128KB of internal programmable eFlash. Package : Industrial LQFP-128 leaded structure. Key Roles : Keyboard and touchpad interface management. System power sequencing. Battery charge and discharge management. Thermal monitoring (fan control and temperature sensors). Common Revisions & Compatibility Main Model : IT8995E-128. Revisions : Often seen as CXA or CXS .
When ordering a replacement chip, always look for “pre‑programmed” or “cut‑from‑donor‑board” versions (often labelled as “剪板” in Chinese repair forums). A pre‑programmed pulled chip costs around $5–$10, while a blank chip costs about $2–$3 but will not work without additional programming equipment.
eSPI (Enhanced Serial Peripheral Interface) or LPC (Low Pin Count) bus to communicate with the Central Processing Unit (CPU) or Platform Controller Hub (PCH).
This IC is widely used as a replacement part for malfunctioning power or I/O chips in notebook repairs. You can find technical summaries and purchase options from distributors like IC Components and Zeus Mining . it8995e 128 datasheet
If a laptop exhibits a "No Power," "No Signs of Life," or "Stuck in Boot Loop" condition, use the following systematic checklist to diagnose the IT8995E-128:
Common revisions seen in motherboard schematics include IT8995E-128 CXA, CXS, DXA, and DXS . Tech communities confirm that parts sharing base hardware designations can often be used interchangeably. However, they must be flashed with matching board-level firmware. Functional Responsibilities of the IT8995E-128
: Common revisions include CXA , CXS , and DXA . These are often interchangeable; for example, the CXA or CXS versions can typically be used on motherboards where the schematic specifies an "IT8995E-128/CX" model. The is a high-performance Embedded Controller (EC) and
+---------------------------------------+ | ITE | | IT8995E-128 | | (LQFP-128) | Power Inputs ---->| [VCC / VSTBY] [KSO0-KSO15] |----> Keyboard Scan Outputs Ground Reference ->| [GND] [KSI0-KSI7] |----> Keyboard Scan Inputs Programming Pins ->| [EDI / JTAG / I2C] [PWM / TAC] |----> Fan Speed Control System Communication| [LPC / eSPI Bus] [GPIO] |----> Hardware Switches & LEDs +---------------------------------------+
The IT8995E-128 is a highly specialized Embedded Controller (EC) developed by ITE Tech Inc., primarily found in modern laptop motherboards, personal computers, and embedded systems. It manages low-level hardware operations that the main operating system cannot handle directly. Because official, public-domain datasheets for ITE chips are notoriously difficult to access without an active Non-Disclosure Agreement (NDA) with the manufacturer, repair technicians, hardware hackers, and reverse engineers must rely on pinout analysis, schematic diagrams, and community-sourced technical data.
Ensure the programmer and motherboard share a common ground reference. Package : Industrial LQFP-128 leaded structure
The IT8995E-128 serves as the primary system management processor before and after the main CPU boots up.
When searching for "it8995e 128 datasheet PDF", include the revision number (e.g., Rev 1.2 ) to ensure you get the latest thermal and GPIO mapping. A wrong revision can lead to misconfigured power rails.
