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W320-03 Datasheet(PDF) 1 Page - Cypress Semiconductor

Part No. W320-03
Description  200-MHz Spread Spectrum Clock Synthesizer/Driver with Differential CPU Outputs
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Maker  CYPRESS [Cypress Semiconductor]
Homepage  http://www.cypress.com
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W320-03 Datasheet(HTML) 1 Page - Cypress Semiconductor

 
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200-MHz Spread Spectrum Clock Synthesizer/Driver
with Differential CPU Outputs
W320-03
PRELIMINARY
Cypress Semiconductor Corporation
3901 North First Street
San Jose
CA 95134
408-943-2600
Document #: 38-07248 Rev. **
Revised September 27, 2001
3
Features
Benefits
• Compliant to Intel® CK-Titan Clock Synthesizer/Driver
Specifications
Supports next generation Pentium® processors using differen-
tial clock drivers
• Multiple output clocks at different frequencies
— Three pairs of differential CPU outputs, up to
200 MHz
— Ten synchronous PCI clocks, three free-running
— Six 3V66 clocks
— Two 48-MHz clocks
— One reference clock at 14.318 MHz
— One VCH clock
Motherboard clock generator
— Support Multiple CPUs and a chipset
— Support for PCI slots and chipset
— Supports AGP, DRCG reference and Hub Link
— Supports USB host controller and graphic controller
— Supports ISA slots and I/O chip
• Spread Spectrum clocking (down spread)
Enables reduction of EMI and overall system cost
• Power-down features (PCI_STOP#, CPU_STOP#
PWR_DWN#)
Enables ACPI compliant designs
• Three Select inputs (Mode select & IC Frequency Select) Supports up to four CPU clock frequencies
• OE and Test Mode support
Enables ATE and “bed of nails” testing
• 56-pin SSOP package and 56-pin TSSOP package
Widely available, standard package enables lower cost
Intel and Pentium are registered trademarks of Intel Corporation.
Direct Rambus is a trademark of Rambus, Inc.
Logic Block Diagram
SSOP & TSSOP
Top View
1
2
3
4
5
6
7
8
9
10
11
12
33
32
31
30
29
36
35
VDD_REF
34
13
14
15
16
17
18
19
20
21
22
23
24
45
44
43
42
41
37
38
39
40
48
47
46
XTAL_IN
XTAL_OUT
GND_REF
25
26
27
28
49
52
51
50
53
56
55
54
PCI0
PCI5
66BUFF2/3V66_4
GND_3V66
PCI_STOP#
S2
GND_CPU
CPU_STOP#
PCI_F2
GND_PCI
GND_3V66
VDD_CORE
VDD_ 48 MHz
MULT0
VDD_CPU
REF
PCI_F0
PCI_F1
VDD_PCI
GND_PCI
PCI1
PCI2
PCI3
VDD_PCI
PCI4
PCI6
VDD_3V66
66BUFF0/3V66_2
66BUFF1/3V66_3
66IN/3V66_5
PWR_DWN#
3V66_0
VDD_3V66
3V66_1/VCH
GND_ 48 MHz
DOT
USB
GND_IREF
IREF
CPU#2
CPU2
VDD_CPU
CPU#1
CPU1
CPU#0
CPU0
S0
S1
GND_CORE
PWR_GD#
SCLK
SDATA
Pin Configurations
VDD_REF
CPU0:2
CPU#0:2
PCI_F0:2
XTAL
PLL Ref Freq
X2
X1
REF
VDD_PCI
USB (48MHz)
VCH_CLK/ 3V66_1
OSC
VDD_CPU
CPU_STOP#
SCLK
PCI0:6
PCI_STOP#
Stop
Clock
Control
Stop
Clock
Control
PLL 1
SMBus
Logic
DOT (48MHz)
PWR_DWN#
S0:2
VDD_48MHz
SDATA
VDD_3V66
3V66_0
3V66_2:4/
Divider
Network
3V66_5/ 66IN
PWR
PWR
PWR
PWR
PWR
PLL 2
PWR
66BUFF0:2
Gate
PWR_GD#
/2


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