ATSHA204A-SSHDA-T The Microchip Technology ATSHA204A-SSHDA-T is an authentication chip designed for secure operations. It supports SHA-256 hashing and operates within a wide voltage range.
Mfr Part #:

ATSHA204A-SSHDA-T

Available from 5 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip Technology ATSHA204A-SSHDA-T is an authentication chip designed for secure operations. It supports SHA-256 hashing and operates within a wide voltage range.
✓ Total Stock: 78,252 pcs
$ Price Range: $0.75

ATSHA204A-SSHDA-T Available from 5 distributors

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ATSHA204A-SSHDA-T Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
EEPROM Size
Mounting Type
SVHC Present
Supplier Device Package
Supply Voltage
Type

ATSHA204A-SSHDA-T Description

Short technical summary and product information.

The ATSHA204A-SSHDA-T from Microchip Technology is a specialized integrated circuit designed for authentication and security applications. It features a protected hardware-based key storage and utilizes the superior SHA-256 hash algorithm with options for Message Authentication Code (MAC) and Hash-Based Message Authentication Code (HMAC).

 

This device offers a 2.0V to 5.5V supply voltage range and a 1.8V to 5.5V communications voltage range, with a low sleep current of less than 150 nA. It includes 4.5 kb of EEPROM for key and data storage, along with 512 bits of One-Time Programmable (OTP) memory for fixed information. Connectivity is provided via a UART-compatible high-speed, single-wire interface or a 1 MHz I2C interface.

 

The ATSHA204A-SSHDA-T is supplied in an 8-lead SOIC surface mount package, making it suitable for integration into various electronic designs. Its applications include secure download and boot, ecosystem control, and anti-cloning.

 

Key features include storage for up to 16 keys, a guaranteed unique 72-bit serial number, and an internal high-quality Random Number Generator (RNG).

ATSHA204A-SSHDA-T Quick Information

Product Type: Authentication Chip
Series: CryptoAuthentication™
Canonical Name: ATSHA204A-SSHDA-T Authentication Chip
Subcategory: Authentication Chip

ATSHA204A-SSHDA-T Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

ATSHA204A-SSHDA-T Estimated Pricing

Qty Low High
1+ $0.75 $0.75

Estimated market price range - modelled values for guidance only, not live distributor offers.

ATSHA204A-SSHDA-T Features

  • Protected hardware-based key storage.
  • Superior SHA-256 hash algorithm.
  • Storage for up to 16 keys.
  • UART and 1 MHz I2C interfaces.
  • 8-lead SOIC surface mount package.

ATSHA204A-SSHDA-T Applications

  • Secure download and boot.
  • Ecosystem control.
  • Anti-cloning.
  • Message security.
  • Networking and communications.

ATSHA204A-SSHDA-T FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range?

The supply voltage range is 2.0V to 5.5V, and the communications voltage range is 1.8V to 5.5V.

What is the package type?

The device is available in an 8-SOIC (0.154", 3.90mm width) surface-mount package.

What is the sleep current consumption?

The sleep current is less than 150 nA.

What communication interfaces are supported?

The ATSHA204A-SSHDA-T supports a UART-compatible high-speed single-wire interface and a 1 MHz I2C interface.

How many keys can be stored?

It can store up to 16 keys.

What is the EEPROM size?

The EEPROM size is 4.5 kb for keys and data.

What security algorithm is used?

The device uses the SHA-256 hash algorithm with MAC and HMAC options.

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