XRT72L56 Datasheet, PDF (42/486 Pages) Exar Corporation – SIX CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER

XRT72L56
SIX CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
REV. P1.1.2
PIN DESCRIPTION FOR THE XRT72L56
PIN #
Y3
Y4
Y23
Y24
Y25
Y26
AA1
AA2
AA3
AA4
AA23
AA24
AA25
AA26
AB1
AB2
AB3
AB4
AB23
AB24
AB25
AB26
AC1
AC2
AC3
PIN NAME
TxPOS[1]
TxFrameRef[1]
TxNibClk[3]/
SndFCS[3]
RxFrame[3]
RxNib1[3]/
RxHDLCDat1[3]
RxNib0[3]/
RxHDLCDat0[3]
TxLineClk[1]
TxNEG[1]
RxNEG[1]
RxLineClk[1]
TxOHEnable[3]/
TxHDLCDat7[3]
TxOHInd[3]/
TxHDLCDat6[3]
TxFrame[3]
RxNib3[3]/
RxHDLCDat3[3]
RxOutClk[1]/
RxHDLCDat7[3]
TxInClk[1]
ExtLOS[1]
DMO[4]
TxNib0[3]/
TxHDLCDat0[3]
TxOHIns[3]/
TxHDLCDat4[3]
TxOHFrame[3]/
TxHDLCClk[3]
TxNibFrame[3]/
ValFCS[3]
RxPOS[1]
RLOL[4]
EncoDis[4]
TYPE
O
I
O
I
O
O
See Description for Pin J1
See Description for Pin H1
See Description for Pin B20
See Description for Pin A9
See Description for Pin A25
DESCRIPTION
O See Description for Pin A18
O See Description for Pin J2
O See Description for Pin K4
I
See Description for Pin G1
I
See Description for Pin J4
O See Description for Pin A14
I
O See Description for Pin A21
I
O See Description for Pin B12
O See Description for Pin A19
O See Description for Pin K3
I
See Description for Pin H3
I
See Description for Pin J3
I
See Description for Pin D7
I
See Description for Pin A23
I
See Description for Pin A16
O See Description for Pin B13
O See Description for Pin A12
I
See Description for Pin H2
I
See Description for Pin B3
O See Description for Pin B4
23
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PRELIMINARY