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IT8987E/BX
+BOM-
ManufacturerITE Tech
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Mfr. Part #IT8987E/BX
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In Stock12980
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Specifications
| Attribute | Value |
| Manufacturer | ITE Tech |
| Package | LQFP-128 |
Overview
Description
Key topics may include:
- Functionality: Role in system management (keyboard, mouse, USB, etc.).
- Hardware Integration: Interaction with motherboards and firmware.
- Programming: Configuration via registers and low-level coding.
- Applications: Embedded systems, industrial PCs, or legacy hardware support.
The course may cover practical labs, datasheet analysis, and troubleshooting. Check institutional syllabi for specifics, as "IT8987E/BX" could also denote a custom course code.
Equivalent
- IT8987E/CX (updated variant)
- IT8995E (newer model)
- ENE KB932 (compatible EC)
- Nuvoton NPCE985 (alternative EC chip)
These chips are used in laptops for keyboard, power, and system management. Verify pin compatibility before substitution.
Features
- LPC Interface: Supports Low Pin Count (LPC) communication with the host.
- Multiple I/O Functions: Integrates keyboard controller (KBC), PS/2, UART, GPIO, and fan control.
- Embedded Flash: On-chip flash memory for firmware storage.
- Power Management: Supports ACPI and SMBus for system power control.
- PWM & ADC: Includes PWM outputs for fan speed control and ADC for sensor monitoring.
- Enhanced Security: Supports hardware-based security features like TPM (optional).
- Low Power Consumption: Optimized for energy-efficient operation.
- Wide Compatibility: Works with x86-based systems and supports various OS environments.
Used in laptops and industrial PCs, it handles system I/O, power sequencing, and peripheral management efficiently.
Pinout
- System Management: Handles power sequencing, thermal control, and fan speed regulation.
- Keyboard & Touchpad Interface: Supports PS/2 and I2C interfaces.
- GPIOs: General-purpose I/O pins for peripheral control.
- ADC: Analog-to-digital conversion for sensor monitoring (e.g., battery, temperature).
- Communication Interfaces: Includes LPC (Low Pin Count), I2C, SPI, and UART.
- Battery Management: Monitors charging and power states.
It integrates multiple system control functions, reducing the need for external components.
Application
1. Power Management – Controls system power sequences, battery charging, and sleep/wake functions.
2. Keyboard & Touchpad Interface – Manages input devices and their interactions with the system.
3. Thermal Management – Monitors temperatures and adjusts fan speeds accordingly.
4. Peripheral Control – Interfaces with USB ports, displays, and other onboard components.
5. Security Functions – Supports TPM (Trusted Platform Module) and firmware verification.
It is widely used in x86-based systems, particularly in notebooks and mini-PCs.