參數資料
型號： DS21FF44N
廠商： DALLAS SEMICONDUCTOR
元件分類： Digital Transmission Controller
英文描述： DATACOM, FRAMER, PBGA300
封裝： 27 X 27 MM, BGA-300
文件頁數： 1/110頁
文件大?。?/td> 526K
代理商： DS21FF44N
1 of 110
040100
FEATURES
Sixteen (16) or twelve (12) completely
independent E1 Framers in one small 27mm
x 27mm Package
Each Multi-Chip 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 1.27 mm pitch package
(27mm X 27mm)
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 DS21Q44
E1 Enhanced Quad Framer. Either three (DS21FT44) or four (DS21FF44) 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 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 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.
www.dalsemi.com
DS21FT44/DS21FF44
4x3 Twelve Channel E1 Framer
4x4 Sixteen Channel E1 Framer
相關PDF資料
PDF描述
DS21FT40N DATACOM, FRAMER, PBGA300
DS21FT40 DATACOM, FRAMER, PBGA300
DS21FT42 DATACOM, FRAMER, PBGA300
DS21FT42N DATACOM, FRAMER, PBGA300
DS21FF42 DATACOM, FRAMER, PBGA300
相關代理商/技術參數
參數描述
DS21FT40 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Four x Three 12 Channel E1 Framer
DS21FT40N 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
DS21FT42 功能描述:網絡控制器與處理器 IC 4x4 16/4x3 12 Chnl T1/T1 Framer RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發(fā)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
DS21FT42N 功能描述:網絡控制器與處理器 IC 4x4 16/4x3 12 Chnl T1/T1 Framer RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發(fā)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
DS21FT44 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(fā)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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