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ATSHA204A-XHDA-T View Datasheet(PDF) - Atmel Corporation

Part Name
Description
MFG CO.
ATSHA204A-XHDA-T
Atmel
Atmel Corporation 
ATSHA204A-XHDA-T Datasheet PDF : 93 Pages
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Table of Contents
Features.......................................................................................................................... 1
Applications..................................................................................................................... 1
Package Types................................................................................................................2
1. Introduction................................................................................................................5
1.1. Applications.................................................................................................................................. 5
1.2. Device Features........................................................................................................................... 5
1.3. Cryptographic Operation.............................................................................................................. 6
2. Device Organization.................................................................................................. 8
2.1. EEPROM Organization................................................................................................................ 8
2.2. Static RAM (SRAM)....................................................................................................................17
3. Security Features.................................................................................................... 19
3.1. Physical Security........................................................................................................................ 19
3.2. Random Number Generator (RNG)........................................................................................... 19
4. General I/O Information........................................................................................... 20
4.1. Byte and Bit Ordering................................................................................................................. 20
5. Single-Wire Interface............................................................................................... 22
5.1. I/O Tokens.................................................................................................................................. 22
5.2. I/O Flags.....................................................................................................................................23
5.3. Synchronization..........................................................................................................................24
5.4. Sharing the Interface.................................................................................................................. 24
5.5. Transaction Example..................................................................................................................25
5.6. Wiring Configuration for Single-Wire Interface........................................................................... 26
6. I2C Interface.............................................................................................................28
6.1. I/O Conditions.............................................................................................................................28
6.2. I2C Transmission to the ATSHA204A Device.............................................................................30
6.3. I2C Transmission from the ATSHA204A Device.........................................................................32
6.4. Address Counter........................................................................................................................ 32
6.5. I2C Synchronization....................................................................................................................33
6.6. Transaction Example..................................................................................................................34
7. Electrical Characteristics......................................................................................... 35
7.1. Absolute Maximum Ratings........................................................................................................35
7.2. Reliability.................................................................................................................................... 35
7.3. AC Parameters — All I/O Interfaces...........................................................................................35
7.4. DC Parameters — All I/O Interfaces.......................................................................................... 39
8. Security Commands................................................................................................ 42
© 2018 Microchip Technology Inc.
DS40002025A-page 3

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