参数资料
型号: XRT72L71IQ
厂商: Exar Corporation
文件页数: 2/102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
XRT72L71
á
DS3 ATM UNI/CLEAR CHANNEL FRAMER
REV. 1.1.0
6
13
D9
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, pin1.
14
D8
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, pin1.
15
VDD
***
Power Supply Pin
16
17
18
19
D7
D6
D5
D4
I/O
Bi-Directional Data bus (Microprocessor Interface Section):
Please see description for D15, pin 1.
20
Width16
I
Microprocessor Interface Block Data Bus Width Selector: This input pin
permits the user to configure the microprocessor interface of the UNI/Framer,
to operate over either an 8 or 16 bit wide bi-directional data bus. Tying this pin
to VDD configures the Microprocessor Interface Data Bus width to be 16 bits.
Tying this pin to GND configures the Microprocessor Interface Data Bus width
to be 8 bits.
21
D3
I/O
Bi-Directional Data bus (Microprocessor Interface Section):
Please see description for D15, pin 1.
22
EncoDis
O
Encoder (B3ZS) Disable Output pin (intended to be connected to the
XRT7300 E3/DS3/STS-1 LIU IC): This output pin is intended to be connected
to the EncoDis input pin of the XRT7300 LIU IC. The user can control the state
of this output pin by writing a “0” or “1” to Bit 3 (EncoDis) of the Line Interface
Driver Register (Address = 0x72). If the user commands this signal to toggle
“High” then it will disable the B3ZS encoder circuitry within the XRT7300 IC.
Conversely, if the user commands this output signal to toggle “Low”, then the
B3ZS Encoder circuitry, within the XRT7300 IC will be enabled.
Writing a “1” to Bit 3 of the Line Interface Driver 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”.
NOTES:
1. The user is advised to disable the B3ZS encoder (within the XRT7300
IC) if the Transmit and Receive DS3 Framers (within the UNI) are con-
figured to operate in the B3ZS line code.
2. If the designer is not using the XRT7300 DS3/E3/STS-1 Line Trans-
mitter IC, then output pin can be used for other purposes.
23
D2
I/O
Bi-Directional Data bus (Microprocessor Interface Section):
Please see description for D15, pin1.
PIN DESCRIPTION (CONTINUED)
PIN NO.
SYMBOL
TYPE
DESCRIPTION
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
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XRT73L06IB-F IC LIU E3/DS3/STS-1 6CH 217BGA
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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