參數(shù)資料
型號(hào)： DS21Q41BT
廠商： DALLAS SEMICONDUCTOR
元件分類： Digital Transmission Controller
英文描述： DATACOM, FRAMER, PQFP128
封裝： TQFP-128
文件頁數(shù)： 1/61頁
文件大小： 714K
代理商： DS21Q41BT
1 of 61
092299
FEATURES
§ Four T1 DS1/ISDN-PRI framing transceivers
§ All four framers are fully independent
§ Frames to D4, ESF, and SLC-96 formats
§ 8-bit parallel control port that can be
connected to either multiplexed or non-
multiplexed buses
§ Each of the four framers contains dual two-
frame elastic stores that can connect to
asynchronous or synchronous backplanes up
to 8.192 MHz
§ Extracts and inserts robbed bit signaling
§ Framer and payload loopbacks
§ Large counters for BPVs, LCVs, EXZs,
CRC6, PCVs, F-bit errors and the number of
multiframes out of sync
§ Contains ANSI 1s density monitor and
enforcer
§ CSU loop code generator and detector
§ Programmable output clocks for Fractional
T1, ISDN-PRI, Actual Size and per channel
loopback applications
§ Onboard FDL support circuitry
§ Pin-compatible with DS21Q43 Quad E1
Framer
§ 5V supply; low power CMOS
§ Available in 128-pin TQFP
§ Industrial (-40°C to +85°C) grade version
available (DS21Q41BTN)
FUNCTIONAL DIAGRAM
ACTUAL SIZE
QUAD
T1
FRAMER
DESCRIPTION
The DS21Q41B combines four of the popular DS2141A T1 Controllers onto a single monolithic die. The
“B” designation denotes that some new features are available in the Quad version that were not available
in the single T1 device. The added features in the DS21Q41B are listed in Section 1. The DS21Q41B
offers a substantial space savings to applications that require more than one T1 framer on a card. The
Quad version is only slightly bigger than the single T1 device. All four framers in the DS21Q41B are
totally independent; they do not share a common framing synchronizer. Also, the transmit and receive
sides of each framer are totally independent. The dual two-frame elastic stores contained in each of the
four framers can be independently enabled and disabled as required. The DS21Q41B meets all of the
latest specifications including ANSI T1.403 (and the emerging T1.403-199X), ANSI T1.231-1993,
AT&T TR62411, AT&T TR54016, ITU G.704 and G.706.
DS21Q41B
Quad T1 Framer
www.dalsemi.com
RECEIVE
FRAMER
TRANSMIT
FORMATTER
ELASTIC
STORE
ELASTIC
STORE
FRAMER #0
FRAMER #1
FRAMER #2
FRAMER #3
CONTROL PORT
相關(guān)PDF資料
PDF描述
DS21Q42TN DATACOM, FRAMER, PQFP128
DS21Q42T DATACOM, FRAMER, PQFP128
DS21Q43AT DATACOM, FRAMER, PQFP128
DS21Q44T DATACOM, FRAMER, PQFP128
DS21Q44TN DATACOM, FRAMER, PQFP128
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS21Q41-BT 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
DS21Q41BT+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21Q41BT+T 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21Q41BTN 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Quad T1 Framer
DS21Q41-BTN 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
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