參數(shù)資料
型號： XRT72L71IQ
廠商： Exar Corporation
文件頁數(shù)： 2/102頁
文件大?。?/td> 0K
描述： IC FRAMER DS3 ATM UNI 160PQFP
產(chǎn)品變化通告： XRT72Lx Series Obsolescence 02/May/2012
標準包裝： 24
控制器類型： DS3 ATM UNI，透明通道調(diào)幀器
電源電壓： 3.3V
電流 - 電源： 120mA
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 160-BQFP
供應(yīng)商設(shè)備封裝： 160-PQFP（28x28）
包裝： 托盤
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
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT72L71IQ-F 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Single CH DS3 UNI (3.3V) RoHS:否 制造商:Micrel 產(chǎn)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
XRT72L73IB 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC
XRT72L74IB 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC
XRT7300 制造商:EXAR 制造商全稱:EXAR 功能描述:E3/DS3/STS-1 LINE INTERFACE UNIT
XRT7300ES 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)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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