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DS21FT42 PDF预览

DS21FT42

更新时间: 2024-10-27 22:32:11
品牌 Logo 应用领域
达拉斯 - DALLAS 数字传输控制器电信集成电路电信电路
页数 文件大小 规格书
145页 462K
描述
4 X 3 Twelve Channel T1 Framer

DS21FT42 技术参数

是否Rohs认证:不符合生命周期:Transferred
包装说明:27 X 27 MM, BGA-300Reach Compliance Code:unknown
风险等级:5.78Is Samacsys:N
JESD-30 代码:S-PBGA-B300JESD-609代码:e0
功能数量:12端子数量:300
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:BGA
封装等效代码:BGA300,20X20,50封装形状:SQUARE
封装形式:GRID ARRAY电源:3.3 V
认证状态:Not Qualified子类别:Other Telecom ICs
标称供电电压:3.3 V表面贴装:YES
技术:CMOS电信集成电路类型:FRAMER
温度等级:COMMERCIAL端子面层:Tin/Lead (Sn/Pb)
端子形式:BALL端子节距:1.27 mm
端子位置:BOTTOMBase Number Matches:1

DS21FT42 数据手册

 浏览型号DS21FT42的Datasheet PDF文件第2页浏览型号DS21FT42的Datasheet PDF文件第3页浏览型号DS21FT42的Datasheet PDF文件第4页浏览型号DS21FT42的Datasheet PDF文件第5页浏览型号DS21FT42的Datasheet PDF文件第6页浏览型号DS21FT42的Datasheet PDF文件第7页 
DALLAS  
SEMICONDUCTOR  
DS21FT42 / DS21FF42  
4 X 3 Twelve Channel T1 Framer  
4 X 4 Sixteen Channel T1 Framer  
·
·
IEEE 1149.1 JTAG-Boundary Scan  
Architecture  
FEATURES  
P
·
Sixteen (16) or Twelve (12) Completely  
Independent T1 Framers in One Small  
27mm x 27mm Package  
DS21FF42 and DS21FT42 are Pin  
Compatible with DS21FF44 and  
DS21FT44, respectively, to allow the  
Same Footprint to Support T1 and E1  
Applications  
·
·
Each Multi-Chip Module (MCM) Contains  
Four (FF) or Three (FT) DS21Q42 Die.  
·
·
300–pin MCM BGA package (27mm X  
27mm)  
Each Quad Framer Can be Concatenated  
into a Single 8.192MHz Backplane Data  
Stream  
Low Power 3.3V CMOS with 5V Tolerant  
Input & Outputs  
1. MULTI-CHIP MODULE (MCM) DESCRIPTION  
The Four x Four and Four x Three MCMs offer a high density packaging arrangement for  
the DS21Q42 T1 Enhanced Quad Framer. Either three (DS21FT42) or four (DS21FF42)  
silicon die of these devices is packaged in a Multi-Chip Module (MCM) with the electrical  
connections as shown in Figure 1-1.  
All of the functions available on the DS21Q42 are also available in the MCM packaged  
version. However, in order to minimize package size, some signals have been deleted or  
combined. These differences are detailed in Table 1-1. In the Four x Three (FT) version,  
the fourth quad framer is not populated and hence all of the signals to and from this fourth  
framer are absent and should be treated as No Connects (NC). Table 2-1 lists all of the  
signals on the MCM and it also lists the absent signals for the Four x Three.  
The availability of both a twelve and a sixteen channel version allow the maximum framer  
density with the lowest cost. For example, in a T3 application, two devices (one  
DS21FF42 and one DS21FT42) provide a total of 28 framers without the additional cost  
and power consumption of any unused framers that appear in an octal approach.  
101899  
/1231  

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