It8995e 128 Datasheet ((link)) Info
Represent architectural structural revisions. Always verify pin configurations against your motherboard schematic diagram before swapping a CX chip out for a DX variant to ensure step-up voltage alignments match perfectly. Common Failure Symptoms and Diagnostic Checklist
| Pin Group | Pin Numbers (Approx.) | Signal Names | Function | | :--- | :--- | :--- | :--- | | | 1, 15, 32, 48, 64, 80, 96, 112 | VDD, VSS | Core logic and I/O ring power | | LPC Bus | 5-9 | LCLK, LFRAME#, LAD0-3 | Communication with PCH | | Keyboard/Mouse | 20, 21 | KBCLK, KBDAT | PS/2 clock and data | | UART A | 40-44 | TXD, RXD, RTS, CTS | Serial port 1 | | Hardware Monitor | 65-72 | VSEN1-8, TACH1-4 | Voltage sense and fan speed | | GPIO Ports | 73-107 | GP00-GP127 | Configurable I/O (multiplexed) |
In these systems, the IT8995E-128 works in tandem with the main chipset (e.g., Intel HM170 or Whiskey Lake-U42) to manage everything from the high-speed NVMe SSD slots to the external USB-C charging ports.
Technicians recommend verifying the specific part number and revision (CXA, CXS, etc.) against the motherboard's boardview or schematic to ensure compatibility before installation. it8995e 128 datasheet
The is a highly integrated, programmable Embedded Controller (EC) and Super I/O chip. It serves as the central nervous system for low-level hardware management in a computer, primarily found in high-volume laptop designs from manufacturers like ASUS .
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The datasheet provides the configuration registers to enable/disable logical devices. The base address for the Super I/O is typically 0x2E or 0x4E for the configuration port. Represent architectural structural revisions
Unlike older, fixed-function Super I/O chips, the IT8995E-128 is fully . This means its behavior is determined entirely by the firmware flashed onto it.
The chip’s support for suggests that its internal USB-C PD controller can manage the high-speed data lanes of the Type-C connector, not just power delivery.
A significant percentage of motherboard failures attributed to a "dead" IT8995E-128 are actually caused by corrupted EC firmware rather than physical hardware degradation. Technicians recommend verifying the specific part number and
: Use the programmer software to select the correct motherboard model, read the existing EC dump (for backup), and write the clean 128 KB binary file. Common Failure Symptoms & Diagnostic Steps
: Handles the laptop keyboard, touchpad, and various system LEDs.