# Chip Hardware Design Guide

## SF32LB52x Series

Chips with suffixes 0, 3, 5, and 7 belong to the SF32LB52x series. They are powered by lithium batteries and support USB charging.

[Hardware Design Guide](/hardware/SF32LB520-3-5-7-HW-Application)  
[Hardware Design Self-Checklist](https://downloads.sifli.com/hardware/files/documentation/SF32LB52%20Schematic%26PCB%20checklist_V1.0_20260121.xlsx)

## SF32LB52X Series
Chips with the suffix letters B, E, G, and J belong to the SF32LB52X Series and use a 3.3V power supply.
Chips with the suffix letter D belong to the SF32LB52X Series and use a 1.8V power supply.

[Hardware Design Guide](/hardware/SF32LB52B-E-G-J-HW-Application)  
[Hardware Design Self-Checklist](https://downloads.sifli.com/hardware/files/documentation/SF32LB52%20Schematic%26PCB%20checklist_V1.0_20260121.xlsx)

## SF32LB56xU Series

The suffix U indicates a QFN68L package.

[Hardware Design Guide](/hardware/SF32LB56xU-HW-Application)  
[Hardware Design Self-Checklist](https://downloads.sifli.com/hardware/files/documentation/SF32LB56x%20Schematic%26PCB%20checklist_V1.0_20260121.xlsx)

## SF32LB56xV Series

The suffix V indicates a BGA package with more pins.

[Hardware Design Guide](/hardware/SF32LB56xV-HW-Application)  
[Hardware Design Self-Checklist](https://downloads.sifli.com/hardware/files/documentation/SF32LB56x%20Schematic%26PCB%20checklist_V1.0_20260121.xlsx)

## SF32LB58x Series

[Hardware Design Guide](/hardware/SF32LB58x-HW-Application)  
[Hardware Design Self-Checklist](https://downloads.sifli.com/hardware/files/documentation/SF32LB58x%20Schematic%26PCB%20checklist_V1.0_20260121.xlsx)

## SF32LB55x Series

[Hardware Design Guide](/hardware/SF32LB55x-HW-Application)  
[Hardware Design Self-Checklist](https://downloads.sifli.com/hardware/files/documentation/SF32LB55x%20Schematic%26PCB%20checklist_V1.0_20260121.xlsx)

## SiFli Material Certification List

[SIFLI-MCU-AVL Certification List](https://downloads.sifli.com/hardware/files/documentation/SIFLI-MCU-AVL-%E8%AE%A4%E8%AF%81%E8%A1%A8-V0.3-20260121.xlsx?)

## EDA Tool Library Files

[JLC EDA Library](https://downloads.sifli.com/hardware/files/documentation/ProPrj_sifli-iclib_2026-04-20.epro2?) 
[PADS Library](https://downloads.sifli.com/hardware/files/documentation/PADS-SIFLI-IC.ZIP?) 
[OrCAD Library](https://downloads.sifli.com/hardware/files/documentation/OrCAD-SIFLI-IC.OLB?) 
[KiCad Library](https://github.com/OpenSiFli/kicad-libraries) 


```{toctree}
:hidden:

SF32LB520-3-5-7-HW-Application
SF32LB52B-E-G-J-HW-Application
SF32LB56xU-HW-Application
SF32LB56xV-HW-Application
SF32LB58x-HW-Application
SF32-auto-download
SF32LB55x-HW-Application
SF32LB52-MOD-1-EPD-HW-Application

```