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CYW305OXCT PDF预览

CYW305OXCT

更新时间: 2024-11-27 22:06:39
品牌 Logo 应用领域
赛普拉斯 - CYPRESS 晶体时钟发生器微控制器和处理器外围集成电路光电二极管
页数 文件大小 规格书
21页 247K
描述
Frequency Controller with System Recovery for Intel Integrated Core Logic

CYW305OXCT 技术参数

是否Rohs认证:符合生命周期:Transferred
零件包装代码:SSOP包装说明:SSOP, SSOP56,.4
针数:56Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.51Is Samacsys:N
JESD-30 代码:R-PDSO-G56JESD-609代码:e4
长度:18.415 mm湿度敏感等级:3
端子数量:56最高工作温度:70 °C
最低工作温度:最大输出时钟频率:200 MHz
封装主体材料:PLASTIC/EPOXY封装代码:SSOP
封装等效代码:SSOP56,.4封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, SHRINK PITCH峰值回流温度(摄氏度):260
电源:2.5,3.3 V主时钟/晶体标称频率:14.318 MHz
认证状态:Not Qualified座面最大高度:2.794 mm
子类别:Clock Generators最大供电电压:3.465 V
最小供电电压:3.135 V标称供电电压:3.3 V
表面贴装:YES技术:CMOS
温度等级:COMMERCIAL端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式:GULL WING端子节距:0.635 mm
端子位置:DUAL处于峰值回流温度下的最长时间:20
宽度:7.5057 mmuPs/uCs/外围集成电路类型:CLOCK GENERATOR, PROCESSOR SPECIFIC
Base Number Matches:1

CYW305OXCT 数据手册

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W305B  
Frequency Controller with System Recovery  
for IntelIntegrated Core Logic  
• Thirteen copies of SDRAM clock  
• Eight copies of PCI clock  
Features  
• Single chip FTG solution for Intel Solano/810E/810  
• Programmable clock output frequency with less than  
• One copy of synchronous APIC clock  
• Three copies of 66-MHz outputs  
• Three copies of 48-MHz outputs  
1 MHz increment  
• Integrated fail-safe Watchdog timer for system  
recovery  
• Automatically switch to HW selected or SW  
programmed clock frequency when Watchdog timer  
time-out  
• Capable of generating system RESET after a Watchdog  
timer time-out occurs or a change in output frequency  
via SMBus interface  
• One copy of double strength 14.31818-MHz reference  
clock  
• One RESET output for system recovery  
• SMBus interface for turning off unused clocks  
Key Specifications  
CPU, SDRAM Outputs Cycle-to-Cycle Jitter: ............. 250 ps  
APIC, 48-MHz, 3V66, PCI Outputs  
• Support SMBus byte read/write and block read/write  
operations to simplify system BIOS development  
Cycle-to-Cycle Jitter:................................................... 500 ps  
• Vendor ID and Revision ID support  
CPU, 3V66 Output Skew: ........................................... 175 ps  
SDRAM, APIC, 48-MHz Output Skew: ....................... 250 ps  
PCI Output Skew: ....................................................... 500 ps  
CPU to SDRAM Skew (@ 133 MHz) ....................... ± 0.5 ns  
CPU to SDRAM Skew (@ 100 MHz)................. 4.5 to 5.5 ns  
CPU to 3V66 Skew (@ 66 MHz)........................ 7.0 to 8.0 ns  
3V66 to PCI Skew (3V66 lead).......................... 1.5 to 3.5 ns  
PCI to APIC Skew..................................................... ± 0.5 ns  
• Programmable drive strength for SDRAM and PCI  
output clocks  
• Programmable output skew between CPU, AGP, PCI  
and SDRAM  
• Maximized EMI suppression using Cypress’s Spread  
Spectrum Technology  
• Low jitter and tightly controlled clock skew  
• Two copies of CPU clock  
Pin Configuration[1]  
Block Diagram  
GND  
56  
55  
54  
53  
52  
51  
50  
49  
48  
47  
46  
45  
44  
43  
42  
41  
40  
VDDQ2  
APIC  
1
VDDQ3  
VDDQ3  
2
REF2X/FS3^  
GND  
3
REF2X/FS3  
X1  
X2  
XTAL  
OSC  
X1  
VDDQ2  
CPU0  
CPU1  
GND  
4
X2  
5
PLL REF FREQ  
VDDQ3  
6
VDDQ2  
CPU0:1  
3V66_0  
7
3V66_1  
8
SDRAM0  
SDRAM1  
SDRAM2  
VDDQ3  
GND  
Divider,  
Delay,  
and  
Phase  
Control  
Logic  
3V66_2  
9
2
SDATA  
SCLK  
SMBus  
Logic  
GND  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
PCI0/FS0^  
PCI1/FS1^  
PCI2/FS2^  
SDRAM3  
SDRAM4  
SDRAM5  
SDRAM6  
VDDQ3  
GND  
APIC  
GND  
(FS0:4)  
PCI3  
VDDQ3  
PCI4  
3V66_0:2  
PCI0/FS0  
VDDQ3  
3
PCI5  
39  
38  
37  
36  
35  
34  
33  
32  
31  
30  
29  
PCI6  
SDRAM7  
SDRAM8  
SDRAM9  
SDRAM10  
VDDQ3  
GND  
PLL 1  
PCI1/FS1  
PCI2/FS2  
PCI3:7  
PCI7  
GND  
48MHz  
5
48MHz/FS4^  
SDRAM0:12  
RST#  
24_48MHz/SEL24_48MHz#*  
13  
SDRAM11  
SDRAM12  
RST#  
25  
26  
27  
28  
VDDQ3  
SDATA  
GND  
VDDQ3  
SCLK  
VDDQ3  
48MHz  
48MHz/FS4  
PLL2  
24_48MHz/SEL24_48MHz#  
/2  
1. Internal 100K pull-up and 100K pull-down resistors present on inputs marked with * and ^ respectively. Design should not rely solely on internal pull-up resistor  
to set I/O pins HIGH or LOW.  
Cypress Semiconductor Corporation  
3901 North First Street  
San Jose, CA 95134  
408-943-2600  
Document #: 38-07262 Rev. *B  
Revised September 1, 2004  

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