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CH423S AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

CH423S product

CH423S

I

I/O ExpanderLED Driver2-Wire Interface

The CH423S is a versatile 2-wire I/O expander and LED driver, ideal for systems with limited MCU pins.

Best for

  • LED matrix displays
  • GPIO expansion for microcontrollers

Avoid if

  • High-speed data bus requirements
  • Applications requiring non-I2C compatible protocols

Check before use

  • Power supply decoupling
  • Interrupt pin configuration

Key specifications

Interface
2-Wire Serial
Supply Voltage
3V - 5V
Package
SOP28

Compliance & Environment

RoHS
RoHS Compliant
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Display DriversI/O Expansion

Datasheet

ba26d1b1f997b9f893e27ee011d4ac60.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for CH423S: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
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Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

The CH423S is a remote I/O expansion chip that communicates via a 2-wire serial interface, providing 8 bidirectional I/O pins and 16 general-purpose output pins.