Loongson LS7A1000 Bridge Chip Datasheet

Technical datasheet for the Loongson LS7A1000 bridge chip, detailing interface structures, electrical specifications, and hardware design guidelines for…

Brand: Loongson
Category: Other Electronics
Document type: Datasheet
Language: Chinese
Pages: 66
File format: PDF
File size: 1.6 MB
Published: 16 October, 2026
Updated: 16 October, 2026
MD5 checksum: A229D0FDEDC1069508064C79BB24914D
PDF: Loongson LS7A1000 Bridge Chip Datasheet PDF

About this manual

This document is the V2.2 datasheet for the Loongson LS7A1000 bridge chip, published by Loongson Technology Corporation Limited in June 2022. It provides comprehensive information on the chip's interface structures, characteristics, electrical specifications, and hardware design guidance. The manual is primarily intended for use by BIOS developers and PCB design engineers. 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 Force
Ordering Information
Hardware Design Specifications

Specifications

Document Version	V2.2
Document Date	June 2022
Target Audience	BIOS and PCB design personnel
Part Number	LS7A1000
Flash Requirement	Not less than 128KB

Frequently asked questions

Who is the intended audience for this manual?

The manual is primarily intended for BIOS and PCB design personnel.

What is the minimum capacity required for the SPI flash?

The SPI flash capacity must be not less than 128KB.

What is the part number of the chip described?

The part number is LS7A1000.

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