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SI522 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

SI522 product

SI522

Specialized

NFC13.56MHzISO/IEC 14443A

The Si522 is a specialized 13.56MHz NFC front-end IC designed for ISO/IEC 14443A contactless reader/writer applications.

Best for

  • NFC reader/writer systems
  • Access control terminals
  • Contactless smart card readers

Avoid if

  • Applications requiring protocols other than ISO/IEC 14443A
  • High-power industrial RF applications

Check before use

  • Antenna matching network design
  • Host interface timing requirements

Key specifications

Frequency
13.56 MHz
Supply Voltage
2.5 V - 3.6 V
Interface
SPI, I2C, UART
Package
QFN32

Compliance & Environment

RoHS
-
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

ConnectivitySensor

Datasheet

170133a776382c2c22f8ecf823e6d3b7_2311161017_Nanjing-Zhongke-Microelectronics-SI522_C2842419.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for SI522: 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 Si522 is a highly integrated NFC front-end IC operating at 13.56 MHz, specifically designed for contactless communication and ISO/IEC 14443A reader/writer applications.