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參數(shù)資料
| 型號： | DS21Q43AT |
| 元件分類： | 通信及網(wǎng)絡 |
| 英文描述： | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| 中文描述： | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| 文件頁數(shù)： | 1/60頁 |
| 文件大小： | 748K |
| 代理商： | DS21Q43AT |
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FEATURES
§
Four E1 (CEPT or PCM-30) /ISDN-PRI
framing transceivers
§
All four framers are fully independent;
transmit and receive sections of each framer
are fully independent
§
Frames to FAS, CAS, CCS, and CRC4
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
§
Easy access to Si and Sa bits
§
Extracts and inserts CAS signaling
§
Large counters for bipolar and code
violations, CRC4 code word errors, FAS
word errors, and E-bits
§
Programmable output clocks for Fractional
E1, per channel loopback, H0 and H12
applications
§
Detects and generates AIS, remote alarm, and
remote multiframe alarms
§
Pin-compatible with DS21Q41B Quad T1
§
5V supply; low power CMOS
§
Available in 128-pin TQFP
§
Industrial (-40°C to +85°C) grade version
available (DS21Q43ATN)
DESCRIPTION
The DS21Q43A combines four of the popular DS2143 E1 Controllers onto a single monolithic die. The
“A” designation denotes that some new features are available in the Quad version which were not
available in the single E1 device. The added features in the DS21Q43A are listed in Section 1. The
DS21Q43A offers a substantial space savings to applications that require more than one E1 framer on a
card. The Quad version is only slightly bigger than the single E1 device. All four framers in the
DS21Q43A 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 DS21Q43A meets
all of the latest specifications, including CCITT/ITU G.704, G.706, G.962, and I.431 as well as ETS 300
011 and ETS 300 233.
FUNCTIONAL DIAGRAM
ACTUAL SIZE
QUAD
E1
FRAMER
DS21Q43A
Quad E1 Framer
www.dalsemi.com
RECEIVE
FRAMER
TRANSMIT
FORMATTER
ELASTIC
STORE
ELASTIC
STORE
FRAMER #0
FRAMER #1
FRAMER #2
FRAMER #3
CONTROL PORT
相關PDF資料 |
PDF描述 |
|---|---|
| DS21Q43ATN | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| DS21Q44 | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| DS21Q44T | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| DS21Q44TN | MICROSWITCH, SPDT, SIM ROLLER LEVER; Current, contact AC:5A; Force, operating:91.75gf; Travel, pre:16.0mm; Centres, fixing LxW:22.2mm; Temp, op. max:120(degree C); Temp, op. min:-40(degree C); Length / Height, external:9.25mm; Width, RoHS Compliant: Yes |
| DS2251T-128-16 | CONNECTOR ACCESSORY |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS21Q43AT+ | 功能描述:網(wǎng)絡控制器與處理器 IC Quad E1 Framer RoHS:否 制造商:Micrel 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS21Q43ATN | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Quad E1 Framer |
| DS21Q43-ATN | 功能描述:網(wǎng)絡控制器與處理器 IC Quad E1 Framer RoHS:否 制造商:Micrel 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS21Q44 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Enhanced QUAD E1 FRAMER |
| DS21Q44T | 功能描述:網(wǎng)絡控制器與處理器 IC Enhanced Quad E1 Framer RoHS:否 制造商:Micrel 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
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