AS8222

Datasheet - Contents

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Revision 1.0

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Contents

1 General Description .................................................................................................................................................................. 1

2 Key Features............................................................................................................................................................................ 1

3 Applications............................................................................................................................................................................... 1

4 Pin Assignments ....................................................................................................................................................................... 5

4.1 Pin Descriptions.................................................................................................................................................................................... 5

5 Absolute Maximum Ratings ......................................................................................................................................................

6

6 Electrical Characteristics...........................................................................................................................................................

8

6.1 Supply Voltage...................................................................................................................................................................................... 8

6.2 State Transitions..................................................................................................................................................................................

9

6.3 Transmitter............................................................................................................................................................................................ 9

6.4 Receiver ............................................................................................................................................................................................. 11

6.5 Wake-up Detector............................................................................................................................................................................... 13

6.6 Supply Voltage Monitor....................................................................................................................................................................... 14

6.7 Bus Error Detection ............................................................................................................................................................................ 15

6.8 Over Temperature............................................................................................................................................................................... 15

6.9 Power Supply Interface ...................................................................................................................................................................... 15

6.10 Communication Controller Interface................................................................................................................................................. 15

6.11 Host Interface ................................................................................................................................................................................... 17

6.12 Bus Guardian Interface..................................................................................................................................................................... 18

6.13 Read Out Interface ........................................................................................................................................................................... 18

7 Detailed Description................................................................................................................................................................ 19

7.1 Block Description................................................................................................................................................................................ 19

7.2 Events................................................................................................................................................................................................. 19

7.3 Operating Modes................................................................................................................................................................................ 19

7.3.1 NORMAL Mode ......................................................................................................................................................................... 20

7.3.2 RECIEVE-ONLY Mode .............................................................................................................................................................. 20

7.3.3 STANDBY Mode........................................................................................................................................................................ 20

7.3.4 GO-TO-SLEEP Mode ................................................................................................................................................................ 20

7.3.5 SLEEP Mode ............................................................................................................................................................................. 20

7.4 Non-Operating Modes ........................................................................................................................................................................ 20

7.4.1 POWER-OFF Mode................................................................................................................................................................... 20

7.5 Undervoltage Events .......................................................................................................................................................................... 20

7.5.2 Undervoltage / Voltage Recovery VIO....................................................................................................................................... 21

7.5.3 Undervoltage / Voltage Recovery VCC...................................................................................................................................... 21

7.6 Power On/Off Events.......................................................................................................................................................................... 21

7.7 Wake-Up Events................................................................................................................................................................................. 21

7.7.1 Remote Wake-Up Event ............................................................................................................................................................ 21

7.7.2 Remote Wake-up with Frames .................................................................................................................................................. 21

7.7.3 Local Wake-Up Event ................................................................................................................................................................ 22

7.8 Over-temperature Events ................................................................................................................................................................... 22

7.9 System Description............................................................................................................................................................................. 23

7.10 Fail Silent Behaviour......................................................................................................................................................................... 24

7.10.1 RxEN / BGE Timeout............................................................................................................................................................... 24

7.10.2 State Transitions due to Undervoltage Detection .................................................................................................................... 24