Part Number : ATSGA204A
Function : CryptoAuthentication
Package : SOIC, TSSOP, UDFN 8 Pin, SOT-3 Type
Maker : MicroChip, Atmel Corporation
Pinouts : 
Description :
1. Secure Authentication and Validation Device
2. Integrated Capability for Both Host and Client Operations
3. Superior SHA-256 Hash Algorithm with Message Authentication Code (MAC)
4. Hash-Based Message Authentication Code (HMAC) Options
5. Best-in-class, 256-bit Key Length; Storage for Up to 16 Keys
6. Guaranteed Unique 72-bit Serial Number
7. Internal, High-quality Random Number Generator (RNG)
8. 4.5Kb EEPROM for Keys and Data
9. 512 bit OTP (One Time Programmable) Bits for Fixed Information
Applications :
• Secure Download and Boot
• Ecosystem Control
• Anti-cloning
• Message Security
Datasheet PDF Download : 
Others datasheet of same file : ATSGA204
