F75125 datasheet(4/34 Pages) FINTEK

4 / 34 page

Fintek

Feature Integration Technology Inc.

V0.16P

F75125

Table of Contents

GENERAL DESCRIPTION ........................................................................................................................................................ 5

FEATURE ..................................................................................................................................................................................... 5

PIN CONFIGURATION .............................................................................................................................................................. 7

PIN DESCRIPTION..................................................................................................................................................................... 8

4.1.

POWER PIN ........................................................................................................................................................................... 8

4.2.

NORTH BRIDGE VOLTAGE PIN/ VOLTAGE REGULATOR SET TRAP PIN ................................................................................... 8

4.3.

VID PIN ................................................................................................................................................................................ 9

4.4.

POWER GOOD PIN ................................................................................................................................................................. 9

4.5.

VOLTAGE SENSE INPUT/VOLTAGE SENSE OUTPUT PIN........................................................................................................ 10

4.6.

I2C INTERFACE PIN............................................................................................................................................................. 10

4.7.

MISCELLANEOUS PIN .......................................................................................................................................................... 10

ELECTRICAL CHARACTERISTIC........................................................................................................................................11

5.1

ABSOLUTE MAXIMUM RATINGS.......................................................................................................................................... 11

5.2

DC CHARACTERISTICS........................................................................................................................................................ 11

FUNCTIONAL DESCRIPTION ............................................................................................................................................... 14

6.1

LINEAR CON PARALLEL VID INTERFACE ............................................................................................................................ 14

6.2

SERIAL VID INTERFACE ...................................................................................................................................................... 16

6.3

2-BIT BOOT CODE AND VFIXEN MODE ............................................................................................................................. 18

6.4

NORTH BRIDGE REFERENCE VOLTAGE AND ENABLE .......................................................................................................... 18

6.5

POWER SAVING MODE ........................................................................................................................................................ 19

6.6

CORE_TYPE ..................................................................................................................................................................... 20

6.7

VOLTAGE SENSE INPUT/ VOLTAGE SENSE OUTPUT ............................................................................................................. 20

6.8

I2C INTERFACE ................................................................................................................................................................... 21

REGISTER DESCRIPTION (I2C ADDRESS = 0X5C).......................................................................................................... 22

7.1

VDDNB VOLTAGE VALUE REGISTER

⎯ INDEX 00H............................................................................................................ 22

7.2

VDD0 VOLTAGE VALUE REGISTER

⎯ INDEX 01H ............................................................................................................... 23

7.3

VDD1 VOLTAGE VALUE REGISTER

⎯ INDEX 02H ............................................................................................................... 23

7.4

VID KEY PROTECT REGISTER

⎯ INDEX 03H..................................................................................................................... 24

7.5

VDDNB VOLTAGE OFFSET VALUE REGISTER

⎯ INDEX 04H................................................................................................ 24

7.6

VDD0 VOLTAGE OFFSET VALUE REGISTER

⎯ INDEX 05H ................................................................................................... 24

7.7

VDD1 VOLTAGE OFFSET VALUE REGISTER

⎯ INDEX 06H ................................................................................................... 25

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