IDT
TM
/ICS
TM
Ultra Mobile PC Clock for Embedded Applications 1617—08/19/09
ICS9EMS9633
ULTRA MOBILE PC CLOCK FOR EMBEDDED APPLICATIONS
6
Datasheet
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.