It8995e 128 Datasheet [best] -
128 KB of on-chip programmable flash memory (indicated by the "-128" suffix) used to store the EC firmware.
The IT8995E-128 has a unique relationship with the main system BIOS. A modern laptop contains two separate flash memory chips:
| Parameter | Symbol | Min | Typ | Max | Unit | |-----------|--------|-----|-----|-----|------| | Supply voltage | VCC | 3.0 | 3.3 | 3.6 | V | | Input low voltage | VIL | -0.3 | - | 0.8 | V | | Input high voltage | VIH | 2.0 | - | 5.5 | V | | Operating current | ICC | - | 45 | 70 | mA | | Temperature range | TOP | 0 | - | 70 | °C |
Unlike older Super I/O chips that read external BIOS chips for instructions, the IT8995E-128 contains internal flash memory that must be explicitly programmed. Required Tools it8995e 128 datasheet
Controls transitions between Advanced Configuration and Power Interface (ACPI) power states (S0, S3, S4, S5).
The IT8995E-128 is typically packaged in a Low-profile Quad Flat Pack (LQFP) with 128 pins. Below is a breakdown of the critical pin groups required for hardware troubleshooting and diagnostic tracking. Power and Ground Rails
The is a highly integrated Embedded Controller (EC) manufactured by ITE Tech . It is widely used in modern laptop motherboards, particularly in devices from ASUS, Lenovo, and HP. This chip manages low-level system hardware operations before and during the operating system boot sequence. 128 KB of on-chip programmable flash memory (indicated
It supports the standard, a robust protocol for negotiating power contracts between a source (like a charger) and a sink (the laptop). This allows the device to request and deliver up to 100W of power, enabling fast charging and the ability to power a wide range of peripherals directly through the USB-C port.
Run a verification pass to ensure the data written matches the buffer precisely.
Due to its high-density 128-pin Quad Flat Package, replacing the IT8995E requires precise surface-mount soldering skills. Repair operations must observe proper thermal profiles: Power and Ground Rails The is a highly
The IT8995E-128 serves as the primary system management processor before and after the main CPU boots up.
This duality is at the core of its powerful functionality. Acting as the "brain" of the system board, it communicates with the main CPU and BIOS, orchestrating critical system-level tasks such as power sequencing, thermal management, battery charging, and keyboard control. At the same time, its underlying design enables high-power delivery over modern USB-C interfaces. This makes the IT8995E-128 a particularly versatile component, capable of bridging legacy system management protocols with next-generation connectivity standards.
Typically utilizes a Low-profile Quad Flat Pack (LQFP) with 128 pins (hence the "-128" suffix). This surface-mount design allows for dense pin distribution, necessary for interfacing with dozens of motherboard sub-systems.
IT8995E-128 (variants: IT8995E-128-CXA, -CXS, -DXA, etc.)