CY28411OCT SPECTRALINEAR [SpectraLinear Inc], CY28411OCT Datasheet - Page 2

• Manufacturer Part Number: CY28411OCT
• Description: Clock Generator for Intel Alviso Chipset
• Manufacturer: SPECTRALINEAR [SpectraLinear Inc]

Rev 1.0, November 22, 2006
Pin Definitions
54
44,43,41,40
36,35
14,15
12
16
53
39
56,3,4,5
55
8
9
52
46
47
26,27
24,25,22,23,
19,20,17,18,
33,32,31,30
11
42
1,7
48
21,28,34
37
13
45
2,6
51
29
38
10
50
49
Pin No.
CPUT/C
DOT96T, DOT96C
VDD_PCI
VSS_PCI
CPU_STP#
CPUT2_ITP/SRCT7,
CPUC2_ITP/SRCC7
FS_A/USB_48
FS_B/TEST_MODE
FS_C/TEST_SEL
IREF
PCI
PCI_STP#
PCIF0/ITP_EN
PCIF1
REF
SCLK
SDATA
SRC4_SATAT,
SRC4_SATAC
SRCT/C
VDD_48
VDD_CPU
VDD_REF
VDD_SRC
VDDA
VSS_48
VSS_CPU
VSS_REF
VSS_SRC
VSSA
VTT_PWRGD#/PD
XIN
XOUT
Name
I/O, SE 3.3V-tolerant input for CPU frequency selection/fixed 48 MHz clock output.
I/O, SE 33 MHz clock/CPU2 select (sampled on the VTT_PWRGD# assertion).
O, DIF Differential CPU clock outputs.
O, DIF Selectable differential CPU or SRC clock output.
O, DIF Fixed 96 MHz clock output.
O, DIF Differential serial reference clock. Recommended output for SATA.
O, DIF Differential serial reference clocks.
O, SE 33 MHz clocks.
O, SE 33 MHz clocks.
O, SE Reference clock. 3.3V 14.318-MHz clock output.
O, SE 14.318 MHz crystal output.
PWR 3.3V power supply for outputs.
PWR 3.3V power supply for outputs.
PWR 3.3V power supply for outputs.
PWR 3.3V power supply for outputs.
PWR 3.3V power supply for outputs.
PWR 3.3V power supply for PLL.
I, PU
I, PU
GND
GND
GND
GND
GND
GND
I, PU
Type
I/O
I
I
I
I
I
3.3V LVTTL input for CPU_STP# active low.
ITP_EN = 0 @ VTT_PWRGD# assertion = SRC7
ITP_EN = 1 @ VTT_PWRGD# assertion = CPU2
Refer to DC Electrical Specifications table for Vil_FS and Vih_FS specifications.
3.3V-tolerant input for CPU frequency selection. Selects Ref/N or Hi-Z when
in test mode
0 = Hi-Z, 1 = Ref/N
Refer to DC Electrical Specifications table for Vil_FS and Vih_FS specifications.
3.3V-tolerant input for CPU frequency selection. Selects test mode if pulled
to V
Refer to DC Electrical Specifications table for V
cations.
A precision resistor is attached to this pin, which is connected to the internal
current reference.
3.3V LVTTL input for PCI_STP# active low.
1 = CPU2_ITP, 0 = SRC7
SMBus-compatible SCLOCK.
SMBus-compatible SDATA.
Ground for outputs.
Ground for outputs.
Ground for outputs.
Ground for outputs.
Ground for outputs.
Ground for PLL.
3.3V LVTTL input is a level sensitive strobe used to latch the USB_48/FS_A,
FS_B, FS_C/TEST_SEL and PCIF0/ITP_EN inputs. After VTT_PWRGD#
(active low) assertion, this pin becomes a real-time input for asserting power
down (active high).
14.318 MHz crystal input.
IMFS_C
when VTT_PWRGD# is asserted low.
Description
ILFS_C
,V
IMFS_C
CY28411
,V
Page 2 of 18
IHFS_C
specifi-