Datasheet

DS21354/DS21554 3.3V/5V E1 Single-Chip Transceivers
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PIN NAME TYPE FUNCTION
78 RLINK O Receive Link Data
99 RLOS/LOTC O Receive Loss of Sync/Loss of Transmit Clock
96 RMSYNC O Receive Multiframe Sync
87 RNEGI I Receive Negative Data Input
90 RNEGO O Receive Negative Data Output
86 RPOSI I Receive Positive Data Input
91 RPOSO O Receive Positive Data Output
17 RRING I Receive Analog Ring Input
95 RSER O Receive Serial Data
94 RSIG O Receive Signaling Output
93 RSIGF O Receive Signaling Freeze Output
98 RSYNC I/O Receive Sync
100 RSYSCLK I Receive System Clock
16 RTIP I Receive Analog Tip Input
18 RVDD — Receive Analog Positive Supply
19, 20, 24 RVSS — Receive Analog Signal Ground
33 TCHBLK O Transmit Channel Block
53 TCHCLK O Transmit Channel Clock
46 TCLK I Transmit Clock
40 TCLKI I Transmit Clock Input
41 TCLKO O Transmit Clock Output
50 TDATA I Transmit Data
49 TESO O Transmit Elastic Store Output
14 TEST I Test
34 TLCLK O Transmit Link Clock
35 TLINK I Transmit Link Data
39 TNEGI I Transmit Negative Data Input
42 TNEGO O Transmit Negative Data Output
38 TPOSI I Transmit Positive Data Input
43 TPOSO O Transmit Positive Data Output
32 TRING O Transmit Analog Ring Output
47 TSER I Transmit Serial Data
48 TSIG I Transmit Signaling Input
52 TSSYNC I Transmit System Sync
37 TSYNC I/O Transmit Sync
51 TSYSCLK I Transmit System Clock
29 TTIP O Transmit Analog Tip Output
31 TVDD — Transmit Analog Positive Supply
30 TVSS — Transmit Analog Signal Ground
77
WR (R/W)
I Write Input (Read/Write), Active Low
22 XTALD O Quartz Crystal Driver