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參數資料
型號： DS21FT44
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： Digital Transmission Controller
英文描述： DATACOM, FRAMER, PBGA300
封裝： 27 X 27 MM, 1.27 MM PITCH, MCMBGA-300
文件頁數： 1/117頁
文件大小： 691K
代理商： DS21FT44
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
相關PDF資料
PDF描述
DS21Q352 DATACOM, PCM TRANSCEIVER, PBGA256
DS21Q354 DATACOM, PCM TRANSCEIVER, PBGA256
DS21Q41BT DATACOM, FRAMER, PQFP128
DS21Q42TN DATACOM, FRAMER, PQFP128
DS21Q42T DATACOM, FRAMER, PQFP128
相關代理商/技術參數
參數描述
DS21FT44+ 功能描述:網絡控制器與處理器 IC 4X3 E1 Framer E1 Framer E1 Framer RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發器數量: 數據速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21FT44N 功能描述:網絡控制器與處理器 IC 4x4 16/4x3 12 Chnl E1/E1 Framer RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發器數量: 數據速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21FT44N+ 功能描述:網絡控制器與處理器 IC 4x4 16/4x3 12 Chnl E1/E1 Framer RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發器數量: 數據速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21Q348 功能描述:網絡控制器與處理器 IC RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發器數量: 數據速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21Q348B 功能描述:網絡控制器與處理器 IC RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發器數量: 數據速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
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