1423—01/20/09

ICS9UMS9633B

ULTRA MOBILE PC/MOBILE INTERNET DEVICE

6

Advance Information

MLF Pin Description (continued)

PIN #

PIN NAME

TYPE

DESCRIPTION

25

GNDSRC

PWR Ground pin for the SRC outputs

26

SRCC0_LPR

OUT

Complementary clock of differential 0.8V push-pull SRC output with integrated 33ohm

series resistor. No 50ohm resistor to GND needed.

27

SRCT0_LPR

OUT

True clock of differential 0.8V push-pull SRC output with integrated 33ohm series

resistor. No 50ohm resistor to GND needed.

28

*CR#1

IN

Clock request for SRC1, 0 = enable, 1 = disable

29

VDDCORE_3.3

PWR 3.3V power for the PLL core

30

VDDIO_1.5

PWR Power supply for low power differential outputs, nominal 1.5V.

31

SRCC1_LPR

OUT

Complementary clock of differential 0.8V push-pull SRC output with integrated 33ohm

series resistor. No 50ohm resistor to GND needed.

32

SRCT1_LPR

OUT

True clock of differential 0.8V push-pull SRC output with integrated 33ohm series

resistor. No 50ohm resistor to GND needed.

33

GNDSRC

PWR Ground pin for the SRC outputs

34

SRCC2_LPR

OUT

Complementary clock of differential 0.8V push-pull SRC output with integrated 33ohm

series resistor. No 50ohm resistor to GND needed.

35

SRCT2_LPR

OUT

True clock of differential 0.8V push-pull SRC output with integrated 33ohm series

resistor. No 50ohm resistor to GND needed.

36

*CR#2

IN

Clock request for SRC2, 0 = enable, 1 = disable

37

FSB_L

IN

Low threshold input for CPU frequency selection. Refer to input electrical

characteristics for Vil_FS and Vih_FS values.

38

CPUC2_LPR

OUT

Complementary clock of differential pair 0.8V push-pull CPU outputs with integrated

33ohm series resistor. No 50 ohm resistor to GND needed.

39

CPUT2_LPR

OUT

True clock of differential pair 0.8V push-pull CPU outputs with integrated 33ohm

series resistor. No 50 ohm resistor to GND needed.

40

GNDCPU

PWR Ground pin for the CPU outputs

41

VDDIO_1.5

PWR Power supply for low power differential outputs, nominal 1.5V.

42

VDDCORE_3.3

PWR 3.3V power for the PLL core

43

CPUC1_LPR

OUT

Complementary clock of differential pair 0.8V push-pull CPU outputs with integrated

33ohm series resistor. No 50 ohm resistor to GND needed.

44

CPUT1_LPR

OUT

True clock of differential pair 0.8V push-pull CPU outputs with integrated 33ohm

series resistor. No 50 ohm resistor to GND needed.

45

GNDCPU

PWR Ground pin for the CPU outputs

46

VDDIO_1.5

PWR Power supply for low power differential outputs, nominal 1.5V.

47

CPUC0_LPR

OUT

Complementary clock of differential pair 0.8V push-pull CPU outputs with integrated

33ohm series resistor. No 50 ohm resistor to GND needed.

48

CPUT0_LPR

OUT

True clock of differential pair 0.8V push-pull CPU outputs with integrated 33ohm

series resistor. No 50 ohm resistor to GND needed.