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参数资料
型号： DS21FT44N
厂商： Maxim Integrated Products
文件页数： 1/117页
文件大小： 0K
描述： IC FRAMER E1 4X3 12CH IND 300BGA
产品培训模块： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装： 40
控制器类型： E1 调帧器
接口： 并行/串行
电源电压： 2.97 V ~ 3.63 V
电流 - 电源： 225mA
工作温度： -40°C ~ 85°C
安装类型： 表面贴装
封装/外壳： 300-BBGA
供应商设备封装： 300-PBGA（27x27）
包装： 管件
1 of 117
071702
Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device
may be simultaneously available through various sales channels. For information about device errata, click here: http://www.maxim-ic.com/errata.
FEATURES
§ 16 or 12 completely independent E1 framers
in one small 27mm x 27mm package
§ Each multichip module (MCM) contains
either four (FF) or three (FT) DS21Q44 die
§ Each quad framer can be concatenated into a
single 8.192MHz backplane data stream
§ IEEE 1149.1 JTAG-Boundary Scan
Architecture
§ DS21FF44 and DS21FT44 are pin
compatible with DS21FF42 and DS21FT42,
respectively, to allow the same footprint to
support T1 and E1 applications
§ 300-pin MCM BGA 1.27mm pitch package
(27mm x 27mm)
§ Low-power 3.3V CMOS with 5V tolerant
input and outputs
APPLICATIONS
§ DSLAMs
§ Multiplexers/Demultiplexers
§ Switches
§ High-Density Line Cards
ORDERING INFORMATION
PART
CHANNEL
PIN-PACKAGE
TEMP. RANGE
DS21FT44
12
300-BGA, 27mm x 27mm
0°C to +70°C
DS21FT44N
12
300-BGA, 27mm x 27mm
-40°C to +85°C
DS21FF44
16
300-BGA, 27mm x 27mm
0°C to +70°C
DS21FF44N
16
300-BGA, 27mm x 27mm
-40°C to +85°C
1. DESCRIPTION
The 4 x 4 and 4 x 3 MCMs offer a high-density packaging arrangement for the DS21Q44 E1 enhanced
quad framer. Either three (DS21FT44) or four (DS21FF44) silicon die of these devices is packaged in a
multichip module (MCM) with the electrical connections as shown in Figure 1-1.
All of the functions available on the DS21Q44 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 4 x 3 (FT) version, the fourth quad framer is not populated
and thus all 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 4 x 3.
The availability of both a 12-channel and a 16-channel version allow the maximum framer density with
the lowest cost.
www.maxim-ic.com
DS21FT44/DS21FF44
4 x 3 12-Channel E1 Framer
4 x 4 16-Channel E1 Framer
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相关代理商/技术参数
参数描述
DS21FT44N+ 功能描述:网络控制器与处理器 IC 4x4 16/4x3 12 Chnl E1/E1 Framer RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray
DS21Q348 功能描述:网络控制器与处理器 IC RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray
DS21Q348B 功能描述:网络控制器与处理器 IC RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray
DS21Q348DK 功能描述:网络开发工具 RoHS:否 制造商:Rabbit Semiconductor 产品:Development Kits 类型:Ethernet to Wi-Fi Bridges 工具用于评估:RCM6600W 数据速率:20 Mbps, 40 Mbps 接口类型:802.11 b/g, Ethernet 工作电源电压:3.3 V
DS21Q348N 功能描述:网络控制器与处理器 IC RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray
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