参数资料
| 型号： | XRT72L71IQ |
| 厂商： | Exar Corporation |
| 文件页数： | 81/102页 |
| 文件大小： | 0K |
| 描述： | IC FRAMER DS3 ATM UNI 160PQFP |
| 产品变化通告： | XRT72Lx Series Obsolescence 02/May/2012 |
| 标准包装： | 24 |
| 控制器类型： | DS3 ATM UNI，透明通道调帧器 |
| 电源电压： | 3.3V |
| 电流 - 电源： | 120mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 160-BQFP |
| 供应商设备封装： | 160-PQFP（28x28） |
| 包装： | 托盘 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页当前第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页
XRT72L71
á
DS3 ATM UNI/CLEAR CHANNEL FRAMER
REV. 1.1.0
4
PIN DESCRIPTIONS (SEE FIGURE 3)
PIN DESCRIPTION
PIN NO.
SYMBOL
TYPE
DESCRIPTION
1D15
I/O
MSB of Bi-Directional Data Bus (Microprocessor Interface Section): This
pin, along with pins D0 - D14, function as the Microprocessor Interface bi-direc-
tional data bus, and is intended to be interfaced to the “local” microprocessor.
This pin is inactive if the Microprocessor Interface block is configured to oper-
ate over an 8 bit data bus.
2TAOS
O
“Transmit All Ones Signal” (TAOS) Command (for the XRT7300 LIU IC).
This output pin is intended to be connected to the TAOS input pin of the XR-
T7300 LIU IC. The user can control the state of this output pin by writing a ‘0’
or ‘1’ to Bit 4 (TAOS) within the Line Interface Drive Register (Address = 0x72).
If the user commands this signal to toggle "High" then it will force the
XRT7300 DS3 Line Transmitter IC to transmit an "All Ones" pattern onto the
line. Conversely, if the user commands this output signal to toggle "Low" then
the XRT7300 DS3 Line Transmitter IC will proceed to transmit data based upon
the pattern that it receives via the TxPOS and TxNEG output pins.
Writing a "1" to Bit 4 of the Line Interface Drive Register (Address = 0x72) will
cause this output pin to toggle "High". Writing a "0" to this bit-field will cause
this output pin to toggle "Low".
NOTE: If the designer is not using the XRT7300 DS3/E3/STS-1 LIU IC, then
this output pin can be used for other purposes.
3
4
5
D14
D13
D12
I/O
Bi-directional Data bus (Microprocessor Interface Section): This pin is
inactive if the Microprocessor Interface block is configured to operate over an
8 bit data bus. Please see description for D15, pin 1.
6DMO
I
“Drive Monitor Output” Input (from the XRT7300 LIU IC): This input pin is
intended to be tied to the DMO output pin of the XRT7300 E3/DS3/STS-1 LIU
IC. The user can determine the state of this input pin by reading Bit 2 (DMO)
within the Line Interface Scan Register (Address = 0x73). If this input signal is
“High”, then it means that the drive monitor circuitry (within the XRT7300 LIU
IC) has not detected any bipolar signals at the MTIP and MRING inputs within
the last 128 ± 32 bit-periods. If this input signal is “Low”, then it means that
bipolar signals are being detected at the MTIP and MRING input pins of the
XRT7300.
NOTE: If the designer is not using the XRT7300 E3/DS3/STS-1 LIU IC, then
this input pin can be used for other purposes.
7MOTO/Intel
I
Motorola/Intel Processor Interface Select Mode: This input pin allows the
user to configure the Microprocessor Interface to interface with either a “Motor-
ola-type” or “Intel-type” microprocessor/microcontroller. Tying this input pin to
VDD, configures the microprocessor interface to operate in the Motorola mode
(e.g., the UNI/Framer can be readily interfaced to a “Motorola type” local
microprocessor). Tying this input pin to GND configures the microprocessor
interface to operate in the Intel Mode (e.g., the UNI/Framer can be readily inter-
faced to an “Intel type” local microprocessor).
相关PDF资料 |
PDF描述 |
|---|---|
| XRT73L02MIV-F | IC LIU E3/DS3/STS-1 2CH 100TQFP |
| XRT73L03BIV-F | IC LIU E3/DS3/STS-1 3CH 120LQFP |
| XRT73L04BIV-F | IC LIU E3/DS3/STS-1 4CH 144LQFP |
| XRT73L06IB-F | IC LIU E3/DS3/STS-1 6CH 217BGA |
| XRT73LC00AIV-F | IC LIU STS1/DS3/E3 SGL 44TQFP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| XRT72L71IQ-F | 功能描述:网络控制器与处理器 IC Single CH DS3 UNI (3.3V) 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 |
| XRT72L73IB | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Telecommunication IC |
| XRT72L74IB | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Telecommunication IC |
| XRT7300 | 制造商:EXAR 制造商全称:EXAR 功能描述:E3/DS3/STS-1 LINE INTERFACE UNIT |
| XRT7300ES | 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 |
发布紧急采购，3分钟左右您将得到回复。