ATSHA204A Datasheet (data sheet) PDF





ATSHA204A Datasheet, Crypto Element

ATSHA204A   ATSHA204A  

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ATSHA204A ATSHA204A Microchip CryptoAuth entication Data Sheet Features • Cryp to Element with Protected Hardware-Base d Key Storage • Secure Symmetric Auth entication Device Host and Client Opera tions • Superior SHA-256 Hash Algorit hm with Message Authentication Code (MA C) and Hash-Based Message Authenticatio n Code (HMAC) Options • Best-in-class , 256-bit Key Length; Storage for Up to 16 Keys • Guaranteed Unique 72-bit S erial Number • Internal, High-quality Random Number Generator (RNG) • 4.5 kb EEPROM for Keys and Data • 512 bit OTP (One Time Programmable) Bits for F ixed Information • Multiple I/O Optio ns – UART-compatible High-Speed, Single-Wir

ATSHA204A Datasheet, Crypto Element

ATSHA204A   ATSHA204A  
e Interface – 1 MHz I2C Interface • 2.0V to 5.5V Supply Voltage Range • 1 .8V to 5.5V Communications Voltage Rang e • <150 nA Sleep Current • Secure Download and Boot – Ecosystem Control – Message Security – Anti-Cloning • 8-lead SOIC, 8-lead TSSOP (2), 3-le ad SOT23, 8-pad UDFN and 3-lead CONTACT Packages Applications • Secure Downl oad and Boot • Ecosystem Control • Anti-cloning • Message Security © 2 018 Microchip Technology Inc. DS400020 25A-page 1 Package Types Table 1. P in Configuration Pin Name NC GND SDA SC L VCC Figure 1. Pinouts(1) 8-lead SO IC (Top View) NC NC NC GND 1 2 3 4 8 VCC 7 NC 6 SCL 5 SDA NC NC NC GND Fu nction No Connect Ground Serial Data Se rial Clock Input Power Supply 8-lead T SSOP(2) (Top View) 18 27 36 45 VCC NC SCL SDA 3-lead SOT (Top View) GND 2 3 1 VCC SDA 8-pad UDFN (Top View) NC NC NC GND 1 2 3 4 8 VCC 7 NC 6 SCL 5 SDA 3-lead Contact (Top View) 1 SDA 2 GND 3 VCC Note:  1. Drawings are not to scale. 2. Not recommended for new d esign. ATSHA204A © 2018 Microchip Te chnology Inc. DS40002025A-page 2 Tabl e of Contents Features................. ....................................... ....................................... ........................... 1 Applicati ons..................................................................................








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