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CY2SSTU877BVXC PDF预览

CY2SSTU877BVXC

更新时间: 2024-11-20 20:08:31
品牌 Logo 应用领域
赛普拉斯 - CYPRESS 驱动逻辑集成电路
页数 文件大小 规格书
9页 186K
描述
PLL Based Clock Driver, SSTU Series, 10 True Output(s), 0 Inverted Output(s), PBGA52, 4.5 X 7 MM, 1 MM HEIGHT, ROHS COMPLIANT, MO-225, VFBGA-52

CY2SSTU877BVXC 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:BGA
包装说明:VFBGA,针数:52
Reach Compliance Code:compliantHTS代码:8542.39.00.01
风险等级:5.68系列:SSTU
输入调节:DIFFERENTIALJESD-30 代码:R-PBGA-B52
JESD-609代码:e1长度:7 mm
逻辑集成电路类型:PLL BASED CLOCK DRIVER功能数量:1
反相输出次数:端子数量:52
实输出次数:10最高工作温度:70 °C
最低工作温度:输出特性:3-STATE
封装主体材料:PLASTIC/EPOXY封装代码:VFBGA
封装形状:RECTANGULAR封装形式:GRID ARRAY, VERY THIN PROFILE, FINE PITCH
峰值回流温度(摄氏度):260认证状态:Not Qualified
Same Edge Skew-Max(tskwd):0.04 ns座面最大高度:1 mm
最大供电电压 (Vsup):1.9 V最小供电电压 (Vsup):1.7 V
标称供电电压 (Vsup):1.8 V表面贴装:YES
温度等级:COMMERCIAL端子面层:Tin/Silver/Copper (Sn/Ag/Cu)
端子形式:BALL端子节距:0.65 mm
端子位置:BOTTOM处于峰值回流温度下的最长时间:20
宽度:4.5 mmBase Number Matches:1

CY2SSTU877BVXC 数据手册

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CY2SSTU877  
PRELIMINARY  
1.8V, 500-MHz, 10-Output JEDEC-Compliant  
Zero Delay Buffer  
ential pair of clock outputs (Y[0:9], Y#[0:9]) and one differential  
pair of feedback clock outputs (FBOUT, FBOUT#).  
Features  
• Operating frequency: 125 MHz to 500 MHz  
• Supports DDRII SDRAM  
The input clocks (CK, CK#), the feedback clocks (FBIN,  
FBIN#), the LVCMOS (OE, OS), and the analog power input  
(AVDD) control the clock outputs.  
The PLL in the CY2SSTU877 clock driver uses the input  
clocks (CK, CK#) and the feedback clocks (FBIN, FBIN#) to  
provide high-performance, low-skew, low-jitter output differ-  
ential clocks (Y[0:9], Y#[0:9]). The CY2SSTU877 is also able  
to track Spread Spectrum Clocking (SSC) for reduced EMI.  
When AVDD is grounded, the PLL is turned off and bypassed  
for test purposes. When both clock signals (CK, CK#) are logic  
low, the device will enter a low-power mode. An input logic  
detection circuit on the differential inputs, independent from  
the input buffers, will detect the logic low level and perform a  
low-power state where all outputs, the feedback, and the PLL  
are OFF. When the inputs transition from both being logic low  
to being differential signals, the PLL will be turned back on, the  
inputs and outputs will be enabled and the PLL will obtain  
phase lock between the feedback clock pair (FBIN, FBIN#)  
and the input clock pair (CK, CK#) within the specified stabili-  
zation time tL.  
• 1 to 10 differential clock buffer (SSTL_18)  
• Spread-Spectrum-compatible  
• Low jitter (cycle-to-cycle): 40 ps  
• Very low output-to-output skew: 40 ps  
• Auto power-down feature when input is low  
• 1.8V operation  
• Fully JEDEC-compliant (JESD 82-8)  
• 52-ball BGA  
Functional Description  
The CY2SSTU877 is a high-performance, low-skew, low-jitter  
zero delay buffer designed to distribute differential clocks in  
high-speed applications.  
This phase-locked loop (PLL) clock buffer is designed for a  
VDD of 1.8V, an AVDD of 1.8V and SSTL18 differential data  
input and output levels. This device is a zero delay buffer that  
distributes a differential clock input pair (CK, CK#) to ten differ-  
Pin Configuration  
Block Diagram  
1
2
3
4
5
6
A
B
C
D
E
F
CLKT1 CLKT0 CLKC0 CLKC5 CLKT5 CLKT6  
CLKC1  
CLKC2  
CLKT2  
CLK_INT VDDQ  
CLK_INC VDDQ  
AGND  
AVDD  
CLKT3  
GND  
GND  
VDDQ  
GND  
NB  
VDDQ  
NB  
NB  
VDDQ  
NB  
GND  
NB  
VDDQ  
NB  
NB  
VDDQ  
NB  
GND  
GND  
OS  
VDDQ FB_INT  
OE FB_INC  
VDDQ FB_OUTT  
GND FB_OUTC  
GND  
CLKC6  
CLKC7  
CLKT7  
G
H
J
VDDQ  
GND  
GND  
GND  
GND  
CLKT8  
K
CLKC3 CLKC4 CLKT4 CLKT9 CLKC9 CLKC8  
52 BGA  
Cypress Semiconductor Corporation  
3901 North First Street  
San Jose, CA 95134  
408-943-2600  
Document #: 38-07575 Rev. *C  
Revised February 21, 2005  

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