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C9777BYB

更新时间: 2024-02-23 12:10:14
品牌 Logo 应用领域
赛普拉斯 - CYPRESS 时钟光电二极管外围集成电路晶体
页数 文件大小 规格书
12页 129K
描述
Processor Specific Clock Generator, CMOS, PDSO48

C9777BYB 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete包装说明:SSOP-48
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.92
JESD-30 代码:R-PDSO-G48JESD-609代码:e0
长度:15.875 mm湿度敏感等级:1
端子数量:48最高工作温度:70 °C
最低工作温度:最大输出时钟频率:153.92 MHz
封装主体材料:PLASTIC/EPOXY封装代码:SSOP
封装等效代码:SSOP48,.4封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, SHRINK PITCH峰值回流温度(摄氏度):220
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:Tin/Lead (Sn/Pb)
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:NOT SPECIFIED
宽度:7.5 mmuPs/uCs/外围集成电路类型:CLOCK GENERATOR, PROCESSOR SPECIFIC
Base Number Matches:1

C9777BYB 数据手册

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APPROVED PRODUCT  
C9777  
Low EMI Clock Generator for 440BX, ALi1631 & Via Pro133+ / Pentium®III Systems  
Product Features  
Frequency Table  
Supports Pentium® II and Pentium® III CPU’s.  
Designed to meet Intel 440BX/ZX chipset  
specification  
S2  
S1  
S0  
CPU  
PCI  
0
0
0
133.63  
143.18  
153.92  
66.82  
33.4  
Supports Via Pro 133+ and ALi1631 chipsets  
4 CPU clocks with isolated power supply  
8 PCI clocks  
0
0
1
35.79  
38.48  
33.41  
41.36  
44.54  
37.39  
33.41  
0
1
0
0
1
1
2 48 MHz for USB clock  
1
0
0
124.09  
133.63  
112.16  
3 Reference clocks  
1
0
1
2 IOAPIC clocks  
< 175 pS Max. Skew among CPU clocks.  
< 500 pS Max. Skew among PCI clocks.  
Smooth frequency switching for jumperless  
application  
1
1
0
1
1
1
100.23  
Table 1  
48-pin SSOP package  
Spread Spectrum for EMI reduction  
Block Diagram  
Pin Configuration  
XIN  
VDD  
VDD  
36pF  
36pF  
REF1 / SIO  
REF2 / SDWN#  
VSS  
1
2
3
4
5
6
7
8
48  
47  
46  
45  
44  
43  
42  
41  
40  
39  
38  
37  
36  
35  
34  
33  
32  
31  
30  
29  
28  
27  
26  
25  
VDD  
REF3  
VDDI  
REF3  
1
2
300K  
XBUF  
XIN  
XOUT  
VSS  
PCI F  
PCI1  
VDD  
PCI2  
PCI3  
VSS  
PCI4  
PCI5  
VDD  
PCI6  
PCI7  
VSS  
VDD  
VSS  
VDD  
IOAPCI1  
IOAPIC2  
VSS  
SMBW  
VDDC  
CPU1  
CPU2  
VSS  
VDDC  
CPU3  
CPU4  
VSS  
REF1  
VDD  
XOUT  
REF2  
PLL1  
Rin  
2
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
S0  
S1  
S2  
VDDI  
IOAPIC(1:2)  
CPU(1:4)  
PCI(_F,1:7)  
48MHZ  
2
4
8
1
1
Pwr_Dwn#  
CPU_stp#  
PCI_stp#  
VDDC  
VDD  
VDD  
VDD  
VDD  
VSS  
SSON#  
SMBW  
PCI stp#  
CPU stp#  
Pwr Dwn#  
SSON#  
S0  
PLL2  
48MHz  
48 / 24 MHz  
VSS  
Rin  
S1  
S2  
SIO  
24/48 MHz  
Fig.1  
Cypress Semiconductor Corporation  
525 Los Coches St.  
Document#: 38-07048 Rev. **  
05/02/2001  
Milpitas, CA 95035. Tel: 408-263-6300, Fax: 408-263-6571  
http://www.cypress.com  
Page 1 of 12  

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