ICS9LPRS436CKILF Datasheet, PDF (4/20 Pages) Integrated Device Technology – Low Power Clock for Intel Atom®-Based Systems

ICS9LPRS436C
Low Power Clock for Intel Atom^®-Based Systems
Pin Description (Continued)
25 GND
26 VDDPCIEX
27 CPUITPC_LR2/PCIeC_LR2
28 CPUITPT_LR2/PCIeT_LR2
29 CPUC_LR1
30 CPUT_LR1
31 VDDCPU
32 CPUC_LR0
33 CPUT_LR0
34 GND
35 SCLK
36 SDATA
37 CPU_STOP#
38 PCI&PCIEX_STOP#
39 X2_25
40 X1_25
41 GND
42 25MHz
43 VDDSUSP
44 Vtt_PwrGd/WOL_STOP#
45 VDD14
46 REF0_2x/FSLC
47 GND
48 GND
PWR
PWR
OUT
OUT
OUT
OUT
PWR
OUT
OUT
PWR
IN
I/O
IN
IN
OUT
IN
PWR
OUT
PWR
Ground pin.
Power supply for PCI Express clocks, nominal 3.3V
Complementary clock of differential pair CPU output. / Complementary clock of
differential PCIEX pair. These are 0.8V push pull outputs. No external 50ohm
resistor to GND or 33ohm series resistor needed.
True clock of differential pair CPU output. / True clock of differential PCIEX
pair. These are 0.8V push pull outputs. No external 50ohm resistor to GND or
33ohm series resistor needed.
Complementary clock of differential pair 0.8V push-pull CPU outputs with
integrated 33ohm series resistor.
True clock of differential pair 0.8V push-pull CPU outputs with integrated
33ohm series resistor.
Supply for CPU clocks, 3.3V nominal
Complementary clock of differential pair 0.8V push-pull CPU outputs with
integrated 33ohm series resistor.
True clock of differential pair 0.8V push-pull CPU outputs with integrated
33ohm series resistor.
Ground pin.
Clock pin of SMBus circuitry, 5V tolerant.
Data pin for SMBus circuitry, 5V tolerant.
Stops CPU0 clock when enabled.
Stops all PCICLKs at logic 0 level, when low. Free running PCICLKs are not
effected by this input.
Crystal output, Nominally 25.00MHz.
Crystal input, Nominally 25.00MHz.
Ground pin.
25MHz clock output, 3.3V
Supply for suspend mode, powers 25MHz PLL, 25M output and XTAL
oscillator. 3.3V Nominal
This active high 3.3V LVTTL input is a level sensitive strobe used to determine
IN when latch inputs are valid and are ready to be sampled / Asynchronous active
low input pin that stops all outputs except free running 25Mhz
PWR
I/O
PWR
PWR
Power for 14.31818MHz PLL and REF output, nominal 3.3V.
2x strength 14.318 MHz reference clock./ 3.3V tolerant input for CPU frequency
selection. Refer to input electrical characteristics for Vil_FS and Vih_FS
values.
Ground pin.
Ground pin.
IDT^® Low Power Clock for Intel Atom^®-Based Systems
4
1561A — 06/01/10