Loongson LS7A1000 Bridge Chip Datasheet

About this manual

This document is the V1.4 datasheet for the Loongson LS7A1000 bridge chip, published by Loongson Technology Corporation Limited in March 2020. It provides comprehensive technical information intended for BIOS developers and PCB designers, covering interface structures, electrical specifications, and hardware design guidelines. This manual is written in Chinese.

What's inside

• Introduction
• Signal Definitions
• Clock
• Functional Description
• Pin Definitions
• Package Dimensions
• Electrical Characteristics
• Soldering and Pull-up Specifications
• Ordering Information
• Hardware Design Guidelines

Specifications

Frequently asked questions

What is the primary intended audience for this datasheet?

This document is mainly designed for use by BIOS and PCB design personnel.

How should unused input signals be handled on the chip?

Unused input signals must be grounded through a 10Kohm resistor.

What is the minimum required capacity for the SPI flash memory?

The SPI flash must have a capacity of not less than 128KB.