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CY2276APVC-12T

更新时间： 2024-09-30 21:14:11
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
11页 163K
描述
Processor Specific Clock Generator, 66.6MHz, CMOS, PDSO56, SSOP-56

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中文翻译

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CY2276APVC-12T 技术参数

生命周期：Obsolete零件包装代码：SSOP
包装说明：SSOP,针数：56
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.84
JESD-30 代码：R-PDSO-G56长度：18.415 mm
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：66.6 MHz
封装主体材料：PLASTIC/EPOXY封装代码：SSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, SHRINK PITCH
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端子形式：GULL WING
端子节距：0.635 mm端子位置：DUAL
宽度：7.5 mmuPs/uCs/外围集成电路类型：CLOCK GENERATOR, PROCESSOR SPECIFIC
Base Number Matches：1

CY2276APVC-12T 数据手册

 浏览型号CY2276APVC-12T的Datasheet PDF文件第2页浏览型号CY2276APVC-12T的Datasheet PDF文件第3页浏览型号CY2276APVC-12T的Datasheet PDF文件第4页浏览型号CY2276APVC-12T的Datasheet PDF文件第5页浏览型号CY2276APVC-12T的Datasheet PDF文件第6页浏览型号CY2276APVC-12T的Datasheet PDF文件第7页 
2
CY2276A-12  
CY2276A-13  
Pentium II Clock Synthesizer/Driver for Desktop PCs  
with Intel 82440LX and 4 DIMMs  
The CY2276A-12 and CY2276A-13 output five CPU clocks at  
2.5V. There are seven PCI clocks, at one half the CPU clock  
Features  
• Mixed 2.5V and 3.3V operation  
frequency, one of which is free-running. Additionally, the parts  
drive out sixteen 3.3V SDRAM clocks at the CPU clock fre-  
quency, three 2.5V IOAPIC clocks at 14.318 MHz, and one  
3.3V reference clock at 14.318 MHz.  
• Complete clock solution to meet requirements of Pen-  
tium® and Pentium® II motherboards  
— Five CPU clocks at 2.5V  
— Sixteen 3.3V SDRAM clocks  
The CY2276A-12 and CY2276A-13 can be used with a periph-  
eral clock generator (CY2030) which can generate USB, I/O,  
reference, and Audio clocks, thus providing a complete solu-  
tion for motherboard manufacturers.  
— Seven synchronous PCI clocks, one free-running  
— Three 2.5V IOAPIC clocks at 14.318 MHz  
— One 3.3V Ref. clock at 14.318 MHz  
• 1 ns–6 ns CPU-PCI delay (-12 option)  
• 1 ns–4.8 ns CPU-PCI delay (-13 option)  
The CY2276A-12 and CY2276A-13 outputs are designed for  
low EMI emission. Controlled rise and fall times, unique output  
driver circuits and factory-EPROM programmable output drive  
and slew-rate enable optimal configurations for EMI control.  
2
• I C™ Serial Configuration Interface  
• Dedicated OE input  
• Factory-EPROM programmable output drive and slew  
rate for EMI customization  
• Factory-EPROM programmable CPU clock frequencies  
for custom configurations  
• High drive, low skew, and low jitter outputs  
• Intel® Test Mode support  
• Available in space-saving 56-pin SSOP package  
CY2276A Selector Guide  
Clocks Outputs  
CPU@2.5V (66.6 MHz)  
SDRAM  
-12  
5
-13  
5
16  
15  
[1]  
[1]  
PCI (33.3 MHz)  
7
7
IOAPIC (14.318 MHz)  
Ref (14.318MHz)  
CPU-PCI delay  
3
1
3
1
Functional Description  
1–6 ns  
1–4.8 ns  
The CY2276A-12 and CY2276A-13 are Clock Synthesiz-  
er/Drivers for Pentium or Pentium II-based PCs designed with  
an Intel 82440LX or similar core-logic chipset.  
Note:  
1. One free-running PCI clock.  
Pin Configuration  
Logic Block Diagram  
56 SSOP  
V
DDQ2  
IOAPIC [0:2] (14.318 MHz)  
AV  
1
2
3
4
56  
55  
54  
DD  
IOAPIC0  
IOAPIC1  
IOAPIC2  
REF0  
VDDQ2  
REF0 (14.318 MHz)  
V
53  
52  
51  
50  
V
SS  
SS  
XTALIN  
14.318  
MHz  
OSC.  
CPUCLK0  
CPUCLK1  
XTALIN  
XTALOUT  
5
6
XTALOUT  
CPU  
PLL  
V
DDQ3  
V
CPUCLK [0–4]  
VDDCPU  
7
DDCPU  
PCICLK_F  
PCICLK0  
49  
48  
47  
46  
45  
44  
43  
42  
41  
CPUCLK2  
CPUCLK3  
V
SS  
8
9
V
SS  
10  
11  
SDRAM [0–15]  
PCICLK1  
PCICLK2  
PCICLK3  
CPUCLK4  
SDRAM0  
SDRAM1  
12  
13  
/2  
PCI [0–5]  
V
14  
15  
16  
17  
18  
PCICLK4  
DDQ3  
PCICLK_F  
V
DDQ3  
SDRAM2  
SDRAM3  
Delay  
PCICLK5  
V
SS  
V
SS  
40  
39  
38  
SERIAL  
SCLK  
SDRAM4  
SDRAM5  
SDRAM11  
SDRAM10  
INTERFACE  
CONTROL  
LOGIC  
19  
20  
SDATA  
V
V
DDQ3  
DDQ3  
37  
36  
35  
34  
SDRAM9  
SDRAM8  
SDRAM6  
21  
22  
23  
24  
25  
26  
27  
28  
OE  
SDRAM7  
V
V
SS  
SS  
SDRAM15  
SDRAM14  
SDRAM12  
SDRAM13  
33  
32  
31  
30  
29  
V
DDQ3  
V
SS  
SDATA  
SCLK  
OE  
MODE  
Intel and Pentium are registered trademarks of Intel Corporation.  
I2C is a trademark of Philips Corporation.  
Cypress Semiconductor Corporation  
•
3901 North First Street  
•
San Jose  
•
CA 95134  
•
408-943-2600  
October 12, 1998  
1234567...11

中文翻译

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