VITESSE
SEMICONDUCTOR CORPORATION
Datasheet
2.488 Gb/s ATM/SDH/SONET STM-16/STS-48
VSC8025/VSC8026
Mux/Demux and Section Terminator IC Chipset
Table 9: Pin Identification Table
Signal
Pin
I/O
Level
Pin Description
TXSLBCLK+
TXSLBCLK-
N/C
T06
T07
T08
T09
T10
T11
T12
T13
T14
T15
T16
I
I
HSECL
HSECL
Serial loopback clock
Serial loopback clock
No connection (leave open)
Parallel transmit data out
Parallel transmit data out
Parallel transmit data out
Parallel transmit data out
Parallel transmit data out
-2.0V power supply
TXPOUT1
TXPOUT2
TXPOUT3
TXPOUT4
TXPOUT6
VTT
O
O
ECL
ECL
ECL
ECL
ECL
-2V
O
O
O
PWR
I
TXFPINA
TXINA6
TTL
TTL
Transmit frame pulse in (active high)
Parallel input bus data A
I
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VITESSE SEMICONDUCTOR CORPORATION
741 Calle Plano, Camarillo, CA 93012 • 805/388-3700 • FAX: 805/987-5896
G52182-0, Rev. 4.0
1/5/00
VITESSE [ VITESSE SEMICONDUCTOR CORPORATION ]
