XRT72L56 Datasheet, PDF (45/486 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 #
AD26
AE1
AE2
AE3
AE4
AE5
AE6
AE7
AE8
AE9
AE10
AE11
AE12
AE13
AE14
AE15
AE16
AE17
AE18
AE19
AE20
AE21
AE22
AE23
AE24
AE25
PIN NAME
TxAISEn[3]
RxRed[4]
LLOOP[4]
NC
NC
NC
NC
RLOOP[3]
NC
TxLev[3]
RxOH[1]/
RxHDLCDat6[1]
RxOHFrame[1]/
RxHDLCDat4[1]
RxNib0[1]/
RxHDLCDat0[1]
RxClk[1]
TxAISEn[1]
TxNib3[1]/
TxHDLCDat3[1]
TxFrame[1]
TxOHClk[1]
RxNib2[4]/
RxHDLCDat2[4]
RxClk[4]
RxOHEnable[4]/
RxHDLCDat5[4]
RxLOS[4]
TxFrame[4]
TxOHFrame[4]/
TxHDLCClk[4]
TxSer[4]/
SndMsg[4]
TxNib1[4]/
TxHDLCDat1[4]
TYPE
I
O
O
See Description for Pin A22
See Description for Pin A4
See Description for Pin B2
DESCRIPTION
O See Description for Pin C3
O See Description for Pin B5
O See Description for Pin B11
O See Description for Pin A11
O See Description for Pin A18
O See Description for Pin B9
I
See Description for Pin A22
I
See Description for Pin B15
O See Description for Pin B12
O See Description for Pin A13
O See Description for Pin A10
O See Description for Pin B9
O See Description for Pin A17
O See Description for Pin A8
O See Description for Pin B12
O See Description for Pin B13
I
See Description for Pin A24
I
See Description for Pin D14
26