ATSHA204A Datasheet PDF – Atmel Crypto Authentication

Part Number: ATSHA204A

Function: Atmel CryptoAuthentication

Package: SOIC-8, SOT-23

Manufacturer: Atmel Corporation, MicroChip

Image and Pinouts:

ATSHA204A datasheet



The ATSHA204A device includes an Electrically Erasable Programmable Read-Only Memory (EEPROM) array that can be used for key storage, miscellaneous read/write data, read-only, secret data, consumption logging, and security configuration.

Access to the various sections of memory can be restricted in a variety of ways, and the configuration can then be locked to prevent changes.



1. Crypto Element with Protected Hardware-Based Key Storage

2. Secure Symmetric Authentication Device Host and Client Operations

3 Best-in-class, 256-bit Key Length; Storage for Up to 16 Keys

4 Guaranteed Unique 72-bit Serial Number

5 Internal, High-quality Random Number Generator (RNG)

6. 4.5 kb EEPROM for Keys and Data



1. Secure Download and Boot

2. Ecosystem Control

3. Anti-cloning

4. Message Security

Other data sheets are available within the file:



ATSHA204A Datasheet PDF Download

ATSHA204A pdf