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This product is ideal for applications requiring secure communication and data protection

Quantity Unit Price(USD) Ext. Price
1 $0.810 $0.81
10 $0.665 $6.65
30 $0.591 $17.73
100 $0.520 $52.00
500 $0.477 $238.50
1000 $0.454 $454.00


*The price is for reference only.
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Overview of ATSHA204-SH-DA-B

The ATSHA204-SH-DA-B is a secure cryptographic element IC that provides authentication and cryptographic capabilities for various applications.This IC offers secure key storage,random number generation,and cryptographic functions,making it suitable for enhancing system security.


(Note:The pin configuration below is a general representation.Refer to the specific datasheet for precise details.)

  • VCC:Positive Power Supply
  • GND:Ground
  • SDA:Serial Data
  • SCL:Serial Clock
  • WAKE:Wake Input
  • RESET:Reset Input
  • IRQ:Interrupt Request

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the ATSHA204-SH-DA-B IC for a visual representation.

Key Features

  • Secure Cryptographic Element:The ATSHA204-SH-DA-B provides secure key storage and cryptographic functions for robust system security.
  • Random Number Generator:Includes a hardware-based random number generator for secure key generation and cryptographic operations.
  • Authentication Functions:Offers authentication capabilities to verify the integrity and identity of devices in a system.
  • Low Power Consumption:With its low power design,this IC is suitable for battery-powered applications requiring secure authentication.
  • I2C Interface:Features an I2C interface for easy integration with microcontrollers and other devices.

Note:For detailed technical specifications,please refer to the ATSHA204-SH-DA-B datasheet.


  • Device Authentication:Ideal for implementing secure device authentication protocols to prevent unauthorized access.
  • Data Encryption:Suitable for encrypting sensitive data and communication channels to ensure data integrity and confidentiality.
  • Secure Boot:Used in secure boot processes to validate the firmware and software integrity during system startup.


The ATSHA204-SH-DA-B offers secure key storage,random number generation,and cryptographic functions to enhance system security and protect against various types of attacks.It provides a trusted platform for secure communication and authentication.

Usage Guide

  • Power Supply:Connect VCC (Pin 1) to the positive power supply and GND (Pin 2) to ground.
  • Communication:Use the SDA and SCL pins for I2C communication with the microcontroller or host device.
  • Configuration:Utilize the WAKE, RESET, and IRQ pins for specific configuration and control functions.

Frequently Asked Questions

Q:What is the key function of the ATSHA204-SH-DA-B?
A:The key function of the ATSHA204-SH-DA-B is to provide secure authentication and cryptographic capabilities for enhanced system security.

Q:Can the ATSHA204-SH-DA-B be used in IoT devices?
A:Yes,the ATSHA204-SH-DA-B is suitable for IoT devices requiring secure authentication and encryption features.


For similar functionalities,consider these alternatives to the ATSHA204-SH-DA-B:

  • ATECC508A:Another secure cryptographic element IC offering similar cryptographic and authentication features.
  • STSAFE-A100:This is a secure element IC from STMicroelectronics providing secure key storage and cryptographic functions.


The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Product Category Security ICs / Authentication ICs RoHS Details
Minimum Operating Temperature - 40 C Maximum Operating Temperature + 85 C
Mounting Style SMD/SMT Package / Case SOIC-8
Brand Microchip Technology Operating Supply Voltage 2 V to 5.5 V
Product Type Security ICs / Authentication ICs Series ATSHA204
Factory Pack Quantity 2900 Subcategory Security ICs / Authentication ICs
Unit Weight 0.019048 oz

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