The complete (PDF) is available from:
Compatible with industry-standard protocols including: LPC (Low Pin Count). SMBus (System Management Bus). I2C (Inter-Integrated Circuit). PS/2 interfaces.
| Parameter | Description / Value | |-----------|----------------------| | | ITE Tech. Inc. | | Part Number Variants | IT8995E‑128 CXA / DXA / CXS (different firmware/configurations) | | Package Type | TQFP‑128 (128‑pin Thin Quad Flat Package), body size 14×14 mm (QFP‑128) | | Core Function | Programmable Super I/O / Embedded Controller (EC) | | Supply Voltage (VCC) | 3.3V (typical) | | Integrated Flash Memory | 128 KB (hence the “-128” suffix) – holds the EC firmware | | Programmability | Fully programmable – requires a pre‑programmed firmware file | | Supported Interfaces | LPC (Low Pin Count), SPI (for BIOS communication), SMBus, GPIO | | Temperature Range | Industrial: -40°C to +85°C (typical) | | Clock Source | External 32.768 kHz crystal or internal oscillator | | Common Companion Chips | Winbond 25Q64 series SPI flash, BQ24780S charger, Realtek ALC3251 audio codec | it8995e 128 datasheet
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Based on technical listings and repair community reports, the IT8995E-128 includes several critical safeguards: Package Type : QFP-128 (Quad Flat Package with 128 pins). Protection Mechanisms : Features built-in Electrostatic Discharge (ESD) protection and overheating safeguards to prevent failure during manufacturing and use. Compliance RoHS compliant The complete (PDF) is available from: Compatible with
The is a highly integrated Super I/O (Input/Output) controller manufactured by ITE (Integrated Technology Express, Inc.). This chip is a cornerstone of modern motherboard design, particularly for industrial PCs, embedded systems, and high-end consumer laptops. Unlike basic I/O controllers, the IT8995E-128 bridges legacy interfaces (PS/2, LPC, UART) with advanced system management features.
eSPI (Enhanced Serial Peripheral Interface) or LPC (Low Pin Count) bus to communicate with the Central Processing Unit (CPU) or Platform Controller Hub (PCH). PS/2 interfaces
When troubleshooting a motherboard using the IT8995E-128, engineers focus on several critical signal pins: Description 3.3V3.3 cap V Standby power rail required for the IC to boot. WRST# / EC_RST# Hardware reset signal; must be high ( 3.3V3.3 cap V ) for operation. NBSWON# / PWR_SW# Power button trigger input; drops to when pressed. DNBSWON#
In a schematic, the IT8995E is usually surrounded by:
If you are troubleshooting a dead laptop and the IT8995E‑128 has all four essential conditions present— VCC (3.3V) , EC_RST# (3.3V) , 32 kHz clock , and proper BIOS communication —but the laptop still does not turn on, the EC itself (or its firmware) is likely defective.
