V0.15P

F75223

1. General Description .............................................................................................................. 4

2. Feature List ........................................................................................................................... 4

3. Key Specification................................................................................................................... 5

4. Block Diagram....................................................................................................................... 5

5. Pin Configuration .................................................................................................................. 6

6. Pin Description...................................................................................................................... 7

Power Pin........................................................................................................................... 7

SMBUS Interface ............................................................................................................... 7

Host SPI Interface .............................................................................................................. 7

Slave SPI Interface............................................................................................................. 7

System Signal Interface ..................................................................................................... 8

Flash status ........................................................................................................................ 8

7. Function Description ............................................................................................................. 8

7.1 Power On Trapping ..................................................................................................... 8

7.2 SPI .............................................................................................................................. 8

7.3 System Signal ............................................................................................................. 9

7.4 Flash strap and status ............................................................................................... 10

7.5 WDT.......................................................................................................................... 11

7.6 Auto Refreshing ........................................................................................................ 12

8. Register Description............................................................................................................ 15

9. Electrical Characteristics..................................................................................................... 21

9.1 Absolute Maximum Ratings ...................................................................................... 21

9.2 DC Characteristics .................................................................................................... 21

9.3 AC Characteristics .................................................................................................... 22

10.Ordering Information.......................................................................................................... 24

11.Top Marking Specification .................................................................................................. 24

12.Package Dimensions ......................................................................................................... 25

13.Application Circuit .............................................................................................................. 26