CY28RS480ZXC Silicon Laboratories Inc, CY28RS480ZXC Datasheet - Page 2

• Manufacturer Part Number: CY28RS480ZXC
• Description: Clock Generators & Support Products ATIR RS480 Chipset System Clock
• Manufacturer: Silicon Laboratories Inc

Specifications of CY28RS480ZXC

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Rev 1.0, November 22, 2006
Pin Description
27, 28, 30, 29
41,40,45,44
12, 13, 16,
17, 18, 19,
22, 23, 24,
52, 53, 54
25, 34, 33
15, 20, 26
Pin No.
14, 21
10,11
6, 9
50
37
47
43
51
56
48
35
32
39
42
49
55
31
46
38
36
7
8
4
3
5
1
2
CLKREQ#[0:1]
SRCST/C[1:0]
SRCT/C[5:0]
VDD_SRCS
VDD_SRC1
VSS_SRCS
VSS_SRC1
VDD_CPU
VDD_SRC
VSS_SRC
VDD_REF
VDD_HTT
VSS_CPU
VSS_REF
VSS_HTT
VDD_PCI
VSS_PCI
REF[2:0]
CPUT/C
USB_48
VDD_48
VSS_48
SDATA
HTT66
VDDA
XOUT
SCLK
VSSA
Name
PCI0
IREF
XIN
NC
O, DIF Differential CPU clock outputs. AMD K8 buffer (200 Mhz).
I/O,PU SMBus-compatible SDATA.This pin has an internal pull-up, but is tri-stated in
O, DIF Differentials Selectable serial reference clock. Intel Type-X buffer.
O, DIF 100 MHz differential serial reference clock. Intel Type-X buffer.
O, SE 14.318 MHz REF clock output. Intel
O, SE 48 MHz clock output. Intel Type-3A buffer.
O, SE 66 MHz clock output. Intel Type-5 buffer.
I, SE,
PWR 3.3V power supply for USB outputs
PWR 3.3V power supply for CPU outputs
PWR 3.3V power supply for PCI outputs
PWR 3.3V power supply for REF outputs
PWR 3.3V power supply for Hyper Transport outputs
PWR 3.3V power supply for SRC outputs
PWR 3.3V power supply for SRC outputs
PWR 3.3V power supply for SRCS outputs
PWR 3.3V Analog Power for PLLs
GND
GND
GND
GND
GND
GND
GND
GND
GND
Type
I,PU
PD
O
O
I
I
33 MHz clock output.
A precision resistor attached to this pin is connected to the internal current
reference.
SMBus-compatible SCLOCK.This pin has an internal pull-up, but is tri-stated in
power-down.
power-down.
Includes overclock support through SMBUS
Output Enable control for SRCT/C. Output enable control required by Minicard
specification. This pin has an internal pull-down.
0 = Selected SRC outputs are enabled, 1 = Selected SRC outputs are disabled
Ground for USB outputs
Ground for CPU outputs
Ground for PCI outputs
Ground for REF outputs
Ground for SRC outputs
Ground for SRC outputs
Ground for SRCS outputs
Ground for HyperTransport outputs
Analog Ground
14.318-MHz Crystal Input
14.318-MHz Crystal Output
No Connects
Description
®
Type-5 buffer.
CY28RS480
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