ATSGA204A データシートの表示（PDF） - Microchip Technology

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ATSGA204A

Microchip CryptoAuthentication

Microchip Technology 

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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