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参数资料
| 型号： | XRT94L31IB |
| 厂商： | Exar Corporation |
| 文件页数： | 98/133页 |
| 文件大小： | 0K |
| 描述： | IC MAPPER DS3/E3/STS-1 504TBGA |
| 标准包装： | 24 |
| 应用： | 网络切换 |
| 接口： | 总线 |
| 电源电压： | 3.14 V ~ 3.47 V |
| 封装/外壳： | 504-LBGA |
| 供应商设备封装： | 504-TBGA（35x35） |
| 包装： | 托盘 |
| 安装类型： | 表面贴装 |
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XRT94L31
67
REV. 1.0.1
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC
B15
C23
AG13
RxOH_0
RxOH_1
RxOH_2
O
CMOS
Receive Overhead Data Output Interface - output
This output pin functions as the Receive Overhead Data output for the
receive system side interface when the XRT94L31 is configured to oper-
ate in DS3/E3 mode, however, it functions as the Receive STS-1 Over-
head Data output when the device is configured to operate in the STS-1
mode.
When configured to operate in DS3/E3 mode:
All overhead bits, which are received via the Receive Section of the
channel, will be output via this output pin, upon the rising edge of
RxOHClk_n.
When configured to operate in STS-1 mode:
These output pins, along with RxOHEnable_n, RxOHClk_n and
RxOHFrame_n function as the Receive STS-1 TOH and POH Output
Port.Each bit, within the TOH and POH bytes (within the incoming STS-1
data stream) is updated upon the falling edge of RxOHClk_n. As a con-
sequence, external circuitry receiving this data, should sample this data
upon the rising edge of RxOHClk_n.
NOTES:
1. The external circuitry can determine whether or not it is
receiving POH or TOH data via this output pin.
The
RxOHEnable_n output pin will be "High" anytime POH data is
being output via these output pins.
Conversely, the
RxOHEnable_n output pin will be "Low" anytime TOH data is
being output via these output pins.
2. TOH and POH data, associated with Receive STS-1 TOH and
POH Processor Block - Channel 0 will be output via the
RxOH_0, and so on.
C15
D21
AF13
RxOHENABLE_0
RxOHENABLE_1
RxOHENABLE_2
O
CMOS
Receive Overhead Data Output Interface - Enable Output
This output pin functions as the Receive Overhead Enable output for the
receive system side interface when the XRT94L31 is configured to oper-
ate in DS3/E3 mode, however, it functions as the Receive STS-1 Over-
head Data output when the device is configured to operate in the STS-1
mode.
When configured to operate in DS3/E3 mode:
The channel will assert this output signal for one RxOHClk_n period
when it is safe for the local terminal equipment to sample the data on the
RxOH_n output pin.
When configured to operate in STS-1 mode:
These output pins, along with RxOHClk_n, RxOHFrame_n and RxOH_n
function as the Receive STS-1 TOH and POH Output Port.
These output pins indicate whether POH or TOH data is being output via
the RxOH_n output pins.
These output pins will toggle "High" coincident with when POH data is
being output via the RxOH_n output pins. Conversely, these output pins
will toggle "Low" coincident with when TOH data is being output via the
RxOH_n output pins.
These output pins are updated upon the falling edge of RxOHClk_n. As
a consequence, external circuitry, receiving this data, should sample this
data upon the rising edge of RxOHClk_n.
PIN DESCRIPTION OF THE XRT94L31 (REV. B)
PIN #
SIGNAL NAME
I/O
TYPE
DESCRIPTION
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相关代理商/技术参数 |
参数描述 |
|---|---|
| XRT94L31IB-F | 功能描述:网络控制器与处理器 IC Demapper 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 |
| XRT94L31IB-L | 功能描述:网络控制器与处理器 IC Mapper / Demapper 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 |
| XRT94L33 | 制造商:EXAR 制造商全称:EXAR 功能描述:-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER - SONET REGISTERS |
| XRT94L33_06 | 制造商:EXAR 制造商全称:EXAR 功能描述:3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC DATA SHEET |
| XRT94L33_07 | 制造商:EXAR 制造商全称:EXAR 功能描述:3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER - ATM REGISTERS |
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