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CY7B991V-7JXC PDF预览

CY7B991V-7JXC

更新时间: 2024-11-18 03:13:11
品牌 Logo 应用领域
赛普拉斯 - CYPRESS 时钟驱动器逻辑集成电路
页数 文件大小 规格书
14页 383K
描述
Low Voltage Programmable Skew Clock Buffer

CY7B991V-7JXC 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete零件包装代码:QFJ
包装说明:LCC-32针数:32
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.31.00.01风险等级:8.37
Is Samacsys:N系列:7B
输入调节:STANDARDJESD-30 代码:R-PQCC-J32
JESD-609代码:e3长度:13.97 mm
逻辑集成电路类型:PLL BASED CLOCK DRIVER最大I(ol):0.035 A
湿度敏感等级:3功能数量:1
反相输出次数:端子数量:32
实输出次数:4最高工作温度:70 °C
最低工作温度:封装主体材料:PLASTIC/EPOXY
封装代码:QCCJ封装等效代码:LDCC32,.5X.6
封装形状:RECTANGULAR封装形式:CHIP CARRIER
峰值回流温度(摄氏度):260电源:3.3 V
Prop。Delay @ Nom-Sup:0.7 ns传播延迟(tpd):0.7 ns
认证状态:Not QualifiedSame Edge Skew-Max(tskwd):1.5 ns
座面最大高度:3.556 mm子类别:Clock Drivers
最大供电电压 (Vsup):3.63 V最小供电电压 (Vsup):2.97 V
标称供电电压 (Vsup):3.3 V表面贴装:YES
温度等级:COMMERCIAL端子面层:Matte Tin (Sn)
端子形式:J BEND端子节距:1.27 mm
端子位置:QUAD处于峰值回流温度下的最长时间:30
宽度:11.43 mm最小 fmax:80 MHz
Base Number Matches:1

CY7B991V-7JXC 数据手册

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CY7B991V  
3.3V RoboClock®  
Low Voltage Programmable Skew Clock Buffer  
Features  
Functional Description  
All output pair skew <100 ps typical (250 max)  
3.75 to 80 MHz output operation  
The CY7B991V Low voltage Programmable Skew Clock Buffer  
(LVPSCB) offers user selectable control over system clock  
functions. These multiple output clock drivers provide the system  
integrator with functions necessary to optimize the timing of  
high-performance computer systems. Each of the eight  
individual drivers, arranged in four pairs of user controllable  
outputs can drive terminated transmission lines with impedances  
as low as 50Ω. This delivers minimal and specified output skews and  
User selectable output functions  
Selectable skew to 18 ns  
Inverted and non-inverted  
Operation at 12 and 14 input frequency  
Operation at 2x and 4x input frequency (input as low as 3.75  
MHz)  
full swing logic levels (LVTTL).  
Each output is hardwired to one of nine delay or function config-  
urations. Delay increments of 0.7 to 1.5 ns are determined by the  
operating frequency with outputs able to skew up to ±6 time units  
from their nominal “zero” skew position. The completely  
integrated PLL allows external load and transmission line delay  
effects to be canceled. When this “zero delay” capability of the  
LVPSCB is combined with the selectable output skew functions,  
the user can create output-to-output delays of up to ±12 time  
units.  
Zero input to output delay  
50% duty cycle outputs  
LVTTL outputs drive 50Ω terminated lines  
Operates from a single 3.3V supply  
Low operating current  
32-pin PLCC package  
Divide-by-two and divide-by-four output functions are provided  
for additional flexibility in designing complex clock systems.  
When combined with the internal PLL, these divide functions  
enable distribution of a low frequency clock that is multiplied by  
two or four at the clock destination. This facility minimizes clock  
distribution difficulty allowing maximum system clock speed and  
flexibility.  
Jitter 100 ps (typical)  
Logic Block Diagram  
TEST  
PHASE  
FREQ  
DET  
FB  
VCO AND  
TIME UNIT  
GENERATOR  
FILTER  
REF  
FS  
4Q0  
4Q1  
4F0  
4F1  
SELECT  
INPUTS  
(THREE  
LEVEL)  
SKEW  
SELECT  
MATRIX  
3Q0  
3Q1  
3F0  
3F1  
2Q0  
2Q1  
2F0  
2F1  
1Q0  
1Q1  
1F0  
1F1  
Cypress Semiconductor Corporation  
Document Number: 38-07141 Rev. *C  
198 Champion Court  
San Jose, CA 95134-1709  
408-943-2600  
Revised June 20, 2007  

CY7B991V-7JXC 替代型号

型号 品牌 替代类型 描述 数据表
CY7B991V-7JCT CYPRESS

完全替代

Low Voltage Programmable Skew Clock Buffer
CY7B991V-7JXCT CYPRESS

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