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XRT79L71IB 데이터시트(PDF) 94 Page - Exar Corporation

부품명 XRT79L71IB
상세설명  1-CHANNEL DS3/E3 ATM UNI/PPP/CLEAR-CHANNEL FRAMER IC - HARDWARE
PDF  109 Pages
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제조업체  EXAR [Exar Corporation]
홈페이지  http://www.exar.com
Logo EXAR - Exar Corporation

XRT79L71IB 데이터시트(HTML) 94 Page - Exar Corporation

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XRT79L71
91
1-CHANNEL DS3/E3 ATM UNI/PPP/CLEAR-CHANNEL FRAMER IC - HARDWARE
REV. 1.0.0
TRANSMIT UTOPIA INTERFACE
The purpose of the Transmit UTOPIA Interface block is to function as either a Standard UTOPIA Level 1, 2 or 3
Interface as it accepts ATM cell data from either an ATM Layer or ATM Adaptation Layer Processor, and routes
this ATM cell data to the TxFIFO within the XRT79L71.
FIGURE 16. TIMING DIAGRAM FOR THE TRANSMIT UTOPIA INTERFACE BLOCK
TABLE 15: TIMING INFORMATION FOR THE TRANSMIT UTOPIA INTERFACE BLOCK
SYMBOL
PARAMETER
MIN.
TYP
MAX.
UNITS
t1
TxUData[15:0] to rising edge of TxUClk Setup Time
4
ns
t2
TxUData[15:0] Hold Time from rising edge of TxUClk
1
ns
t3
TxUTOPIA Write Enable Setup Time to rising edge of TxUClk
4
ns
t4
TxUTOPIA Write Enable Hold Time from rising edge of TxUClk
1
ns
t5
TxUPrty Setup Time to rising edge of TxUClk
4
ns
t6
TxUPrty Hold Time from rising edge of TxUClk
1
ns
t7
TxUSoC Setup Time to rising edge of TxUClk
4
ns
t8
TxUSoC Hold Time from rising edge of TxUClk
1
ns
t9
TxUAddr[4:0] Setup Time to rising edge of TxUClk
4
ns
t10
TxUAddr[4:0] Hold Time from rising edge of TxUClk
1
ns
TxUData[15:0]
TxUEn*
TxUPrty
TxUSoC
TxUClk
t1
t3
t2
t5
t7
t6
t8
t4
TxUClav
t11
t12
VALID DATA



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