XRT72L56 Datasheet, PDF (43/486 Pages) Exar Corporation – SIX CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER

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PRELIMINARY
XRT72L56
SIX CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
REV. P1.1.2
PIN DESCRIPTION FOR THE XRT72L56
PIN #
AC4
AC5
AC6
AC7
AC8
AC9
AC10
AC11
AC12
AC13
AC14
AC15
AC16
AC17
AC18
AC19
AC20
AC21
AC22
AC23
AC24
AC25
AC26
PIN NAME
TxLev[4]
RLOOP[1]
REQ[1]
RLOL[1]
DMO[1]
RxRed[1]
RxAIS[1]
EncoDis[3]
RxNib2[1]/
RxHDLCDat2[1]
RxSer[1]/
RxIdle[1]
RxLOS[1]
TxNib2[1]/
TxHDLCDat2[1]
TxNibClk[1]/
SndFCS[1]
RxNib3[4]/
RxHDLCDat3[4]
RxNib0[4]/
RxHDLCDat0[4]
RxOHClk[4]/
RxHDLCClk[4]
TxNibClk[4]/
SndFCS[4]
TxOHEnable[4]/
TxHDLCDat7[4]
TxOH[4]/
TxHDLCDat5[4]
TxSer[3]/
SndMsg[4]
TxNib1[3]/
TxHDLCDat1[3]
TxOH[3]/
TxHDLCDat5[3]
TxOHClk[3]
TYPE
O
O
O
I
I
O
O
O
O
See Description for Pin B5
See Description for Pin C3
See Description for Pin A1
See Description for Pin B3
See Description for Pin D7
See Description for Pin A4
See Description for Pin A5
See Description for Pin B4
See Description for Pin A10
DESCRIPTION
O See Description for Pin B25
O See Description for Pin A8
I
See Description for Pin C22
O See Description for Pin B20
I
O See Description for Pin A19
O See Description for Pin A18
O See Description for Pin B10
O See Description for Pin B20
I
O See Description for Pin A14
I
I
See Description for Pin A15
I
See Description for Pin A24
I
See Description for Pin D14
I
See Description for Pin A15
O See Description for Pin A13
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