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参数资料
| 型号： | XRT94L31IB |
| 厂商： | Exar Corporation |
| 文件页数： | 68/133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
4
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC
REV. 1.0.1
AD20
AC19
AE22
AG24
AE21
AD19
AF23
AE20
PDATA_0
PDATA_1
PDATA_2
PDATA_3
PDATA_4
PDATA_5
PDATA_6
PDATA_7
I/O
TTL
Bi-Directional Data Bus pins (Microprocessor Interface):
These pins are used to drive and receive data over the bi-directional
data bus, whenever the Microprocessor performs READ and WRITE
operations with the Microprocessor Interface of the XRT94L31.
AF22
PWR_L/R/W*
I
TTL
Write Strobe/Read-Write Operation Identifier:
The function of this input pin depends upon which mode the Micropro-
cessor Interface has been configured to operate in, as described below.
Intel-Asynchronous Mode - WR* - Write Strobe Input:
If the Microprocessor Interface is configured to operate in the Intel-Asyn-
chronous Mode, then this input pin functions as the WR* (Active-Low
WRITE Strobe) input signal from the Microprocessor. Once this active-
low signal is asserted, then the input buffers (associated with the Bi-
Directional Data Bus pins, D[7:0]) will be enabled. The Microprocessor
Interface will latch the contents on the Bi-Directional Data Bus (into the
target register or address location, within the XRT94L31) upon the rising
of this input.
Motorola-Asynchronous Mode - R/W* - Read/Write Operation Identi-
fication Input Pin:
If the Microprocessor Interface is operating in the Motorola-Asynchro-
nous Mode, then this pin is functionally equivalent to the R/W* input pin.
In the Motorola Mode, a READ operation occurs if this pin is held at a
logic 1, coincident to a falling edge of the RD/DS* (Data Strobe) input
pin.
PowerPC 403 Mode - R/W* - Read/Write Operation Identification
Input:
If the Microprocessor Interface is configured to operate in the PowerPC
403 Mode, then this input pin will function as the Read/Write Operation
Identification input pin.
Anytime the Microprocessor Interface samples this input signal at a logic
"Low" (while also sampling the CS* input pin "Low") upon the rising edge
of PCLK, then the Microprocessor Interface will (upon the very same ris-
ing edge of PCLK) latch the contents of the Address Bus (A]14:0]) into
the Microprocessor Interface circuitry, in preparation for this forthcoming
READ operation. At some point (later in this READ operation) the Micro-
processor will also assert the DBEN*/OE* input pin, and the Micropro-
cessor Interface will then place the contents of the target register (or
address location within the XRT94L31) upon the Bi-Directional Dat Bus
pins (D[7:0]), where it can be read by the Microprocessor.
Anytime the Microprocessor Interface samples this input signal at a logic
"High" (while also sampling the CS* input pin at a logic "Low") upon the
rising edge of PCLK, then the Microprocessor Interface will (upon the
very same rising edge of PCLK) latch the contents of the Address Bus
(A[14:0]) into the Microprocessor Interface circuitry, in preparation for the
forthcoming WRITE operation. At some point (later in this WRITE oper-
ation) the Microprocessor will also assert the RD*/DS*/WE* input pin,
and the Microprocessor Interface will then latch the contents of the Bi-
Directional Data Bus (D[7:0]) into the contents of the target register or
buffer location (within the XRT94L31).
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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