
DS21455/DS21458 Quad T1/E1/J1 Transceivers
37 of 270
PIN
N2
E13
C5
R13
J7
D15
B4
P13
L5
G12
F6
L9
L6
F12
F7
L11
T2
A15
B2
R16
J14
J13
P1
C16
C4
T14
K7
F11
G7
L12
M5
E12
E5
M12
T1
B15
A1
T16
L4
F13
D5
L10
R2
A16
B1
R15
R4
T4
A13
B13
D1
D2
N15
NAME
TCHBLK1
TCHBLK2
TCHBLK3
TCHBLK4
TCHCLK1
TCHCLK2
TCHCLK3
TCHCLK4
TCLK1
TCLK2
TCLK3
TCLK4
Unused
Unused
Unused
Unused
TCLKO1
TCLKO2
TCLKO3
TCLKO4
TEST1
TEST2
TLCLK1
TLCLK2
TLCLK3
TLCLK4
TLINK1
TLINK2
TLINK3
TLINK4
Unused
Unused
Unused
Unused
TNEGO1
TNEGO2
TNEGO3
TNEGO4
Unused
Unused
Unused
Unused
TPOSO1
TPOSO2
TPOSO3
TPOSO4
TRING1
TRING1
TRING2
TRING2
TRING3
TRING3
TRING4
TYPE
O
O
O
O
O
O
O
O
I
I
I
I
I
I
I
I
O
O
O
O
—
—
O
O
O
O
I
I
I
I
I
I
I
I
O
O
O
O
I
I
I
I
O
O
O
O
O
O
O
O
O
O
O
FUNCTION
Transmit Channel Block for Transceiver 1
Transmit Channel Block for Transceiver 2
Transmit Channel Block for Transceiver 3
Transmit Channel Block for Transceiver 4
Transmit Channel Clock for Transceiver 1
Transmit Channel Clock for Transceiver 2
Transmit Channel Clock for Transceiver 3
Transmit Channel Clock for Transceiver 4
Transmit Clock for Transceiver 1
Transmit Clock for Transceiver 2
Transmit Clock for Transceiver 3
Transmit Clock for Transceiver 4
Connect to VSS for Proper Operation
Connect to VSS for Proper Operation
Connect to VSS for Proper Operation
Connect to VSS for Proper Operation
Transmit Clock Output from the Framer on Transceiver 1
Transmit Clock Output from the Framer on Transceiver 2
Transmit Clock Output from the Framer on Transceiver 3
Transmit Clock Output from the Framer on Transceiver 4
Used for Factory Test –
Do Not Connect
Used for Factory Test –
Do Not Connect
Transmit Link Clock for Transceiver 1
Transmit Link Clock for Transceiver 2
Transmit Link Clock for Transceiver 3
Transmit Link Clock for Transceiver 4
Transmit Link Data for Transceiver 1
Transmit Link Data for Transceiver 2
Transmit Link Data for Transceiver 3
Transmit Link Data for Transceiver 4
Connect to VSS for Proper Operation
Connect to VSS for Proper Operation
Connect to VSS for Proper Operation
Connect to VSS for Proper Operation
Transmit Negative-Data Output from Framer on Transceiver 1
Transmit Negative-Data Output from Framer on Transceiver 2
Transmit Negative-Data Output from Framer on Transceiver 3
Transmit Negative-Data Output from Framer on Transceiver 4
Connect to VSS for Proper Operation
Connect to VSS for Proper Operation
Connect to VSS for Proper Operation
Connect to VSS for Proper Operation
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 1
Transmit Analog Ring Output for Transceiver 2
Transmit Analog Ring Output for Transceiver 2
Transmit Analog Ring Output for Transceiver 3
Transmit Analog Ring Output for Transceiver 3
Transmit Analog Ring Output for Transceiver 4