
DS21455/DS21458 Quad T1/E1/J1 Transceivers
33 of 270
PIN
N20
W3
C20
A8
R19
V7
C19
C9
N19
Y2
Y4
Y6
Y8
W9
C17
C10
K20
W10
C18
A10
L19
W12
B18
D10
K19
U16
V1
D20
C7
R18
W11
A19
A11
N18
Y1
Y3
Y5
Y7
W2
G19
D11
U19
W4
G18
C5
U18
K3
NAME
TNEGO4
TPOSI1
TPOSI2
TPOSI3
TPOSI4
TPOSO1
TPOSO2
TPOSO3
TPOSO4
TRING1
TRING2
TRING3
TRING4
TSER1
TSER2
TSER3
TSER4
TSIG1
TSIG2
TSIG3
TSIG4
TSSYNC1
TSSYNC2
TSSYNC3
TSSYNC4
TSTRST
TSYNC1
TSYNC2
TSYNC3
TSYNC4
TSYSCLK1
TSYSCLK2
TSYSCLK3
TSYSCLK4
TTIP1
TTIP2
TTIP3
TTIP4
TVDD
TVDD
TVDD
TVDD
TVSS
TVSS
TVSS
TVSS
WR
(R
/W
)
TYPE
O
I
I
I
I
O
O
O
O
O
O
O
O
I
I
I
I
I
I
I
I
I
I
I
I
I
I/O
I/O
I/O
I/O
I
I
I
I
O
O
O
O
—
—
—
—
—
—
—
—
I
FUNCTION
Transmit Negative-Data Output from Framer on Transceiver 4
Transmit Positive-Data Input for the LIU on Transceiver 1
Transmit Positive-Data Input for the LIU on Transceiver 2
Transmit Positive-Data Input for the LIU on Transceiver 3
Transmit Positive-Data Input for the LIU on Transceiver 4
Transmit Positive-Data Output from Framer on Transceiver 1
Transmit Positive-Data Output from Framer on Transceiver 2
Transmit Positive-Data Output from Framer on Transceiver 3
Transmit Positive-Data Output from Framer on Transceiver 4
Transmit Analog Ring Output for Transceiver 1
Transmit Analog Ring Output for Transceiver 2
Transmit Analog Ring Output for Transceiver 3
Transmit Analog Ring Output for Transceiver 4
Transmit Serial Data for Transceiver 1
Transmit Serial Data for Transceiver 2
Transmit Serial Data for Transceiver 3
Transmit Serial Data for Transceiver 4
Transmit Signaling Input for Transceiver 1
Transmit Signaling Input for Transceiver 2
Transmit Signaling Input for Transceiver 3
Transmit Signaling Input for Transceiver 4
Transmit System Sync for Transceiver 1
Transmit System Sync for Transceiver 2
Transmit System Sync for Transceiver 3
Transmit System Sync for Transceiver 4
Test/Reset
Transmit Sync for Transceiver 1
Transmit Sync for Transceiver 2
Transmit Sync for Transceiver 3
Transmit Sync for Transceiver 4
Transmit System Clock for Transceiver 1
Transmit System Clock for Transceiver 2
Transmit System Clock for Transceiver 3
Transmit System Clock for Transceiver 4
Transmit Analog Tip Output for Transceiver 1
Transmit Analog Tip Output for Transceiver 2
Transmit Analog Tip Output for Transceiver 3
Transmit Analog Tip Output for Transceiver 4
Transmit Analog Positive Supply
Transmit Analog Positive Supply
Transmit Analog Positive Supply
Transmit Analog Positive Supply
Transmit Analog Signal Ground
Transmit Analog Signal Ground
Transmit Analog Signal Ground
Transmit Analog Signal Ground
Write Input (Read/Write)