CY28412OC SPECTRALINEAR [SpectraLinear Inc], CY28412OC Datasheet
CY28412OC
Manufacturer Part Number
CY28412OC
Description
Manufacturer
SPECTRALINEAR [SpectraLinear Inc]
Datasheet
1.CY28412OC.pdf
(16 pages)
Rev 1.0, November 20, 2006
2200 Laurelwood Road, Santa Clara, CA 95054
Features
• Supports Intel P4 and Prescott CPU
• Selectable CPU frequencies
• Differential CPU clock pairs
• 100 MHz differential SRC clocks
• 96 MHz differential dot clock
• 48 MHz USB clocks
• 33 MHz PCI clock
Block Diagram
CPU_STP#
VTT_PWRGD#
PCI_STP#
FS_[C:A]
SDATA
XOUT
SCLK
IREF
XIN
PD
PLL1
PLL2
Logic
XTAL
OSC
I
2
C
Network
Divider
PLL Ref Freq
Clock Generator for Intel
Tel:(408) 855-0555
DOT96T
DOT96C
VDD_REF
REF[1:0]
VDD_CPU
VDD_SRC
VDD_PCI
VDD_PCIF
VDD_48 MHz
USB_48
CPUT[0:1], CPUC[0:1],
CPU(T/C)2_ITP]
SRCT[0:6], SRCC[0:6],
SATA[T/C]
PCI[0:5]
PCIF[0:1]
PRELIMINARY
TEST_SEL/PCIF0
VTT_PwrGd#/PD
• Low-voltage frequency select input
• I
• Ideal Lexmark Spread Spectrum profile for maximum
• 3.3V power supply
• 56-pin SSOP package
ITP_EN/PCIF1
x2 / x3
CPU
USB48/FS_B
electromagnetic interference (EMI) reduction
2
C Support with read back capabilities
Pin Configuration
GND_SRC
VDD_SRC
GND_PCI
GND_PCI
VDD_PCI
VDD_PCI
Fax:(408) 855-0550
DOT96C
GND_48
DOT96T
VDD_48
SRCC0
SRCC2
SRCT0
SRCT1
STCC1
SRCT2
SATAC
SATAT
PCI0
PCI1
PCI2
PCI3
PCI4
PCI5
x7 / x8
SRC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
®
Grantsdale Chipset
PCI
56 SSOP
x 8
www.SpectraLinear.com
REF
x 2
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
CY28412
VDD_REF
REF0/FS_C
REF1/FS_A
GND_REF
X1
X2
SDATA
SCLK
GND_CPU
CPUT0
CPUC0
VDD_CPU
CPUT1
CPUC1
IREF
GND_A
VDD_A
CPUT2_ITP/SRCT6
CPUC2_ITP/SRCC6
VDD_SRC
SRCT5
SRCC5
GND_SRC
SRCT4
SRCC4
SRCT3
SRCC3
VDD_SRC
DOT96 USB_48
x 1
Page 1 of 16
x 1
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