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 16: Pin Identification Table
Signal
Pin
I/O
Level
Pin Description
VCC
RXPIN4
RXPIN6
NC
B10
B11
B12
B13
B14
B15
B16
C01
C02
C03
C04
C05
C06
C07
C08
C09
C10
C11
C12
C13
C14
C15
C16
D01
D02
D03
D04
D05
D06
D07
D08
D09
D10
D11
D12
D13
D14
D15
PWR
GND
ECL
ECL
Ground
I
I
Receive parallel data in
Receive parallel data in
No connection (leave open)
No connection (leave open)
No connection (leave open)
Parallel output bus C parity
Ground
NC
NC
RXOUTCP
VCC
O
TTL
PWR
GND
N/C
No connection (leave open)
No connection (leave open)
No connection (leave open)
Ground
N/C
N/C
VCC
PWR
PWR
PWR
PWR
PWR
PWR
PWR
PWR
GND
-2V
VTT
-2.0V power supply
+3.3V power supply
-2.0V power supply
-2.0V power supply
+3.3V power supply
-2.0V power supply
Ground
VTTL
VTT
+3.3V
-2V
VTT
-2V
VTTL
VTT
+3.3V
-2V
VCC
GND
N/C
No connection (leave open)
No connection (leave open)
Parallel output bus D parity
Ground
N/C
RXOUTDP
VCC
O
TTL
PWR
GND
N/C
No connection (leave open)
No connection (leave open)
Ground
N/C
VCC
PWR
I
GND
TTL
SELFRDET0
N/C
Frame detect mode select
No connection (leave open)
Ground
VCC
PWR
PWR
PWR
PWR
PWR
PWR
GND
+3.3V
GND
GND
GND
GND
VDD
+3.3V power supply
Ground
VCC
VCC
Ground
VCC
Ground
VCC
Ground
N/C
No connection (leave open)
No connection (leave open)
Ground
N/C
VCC
PWR
O
GND
TTL
RXCLKOUTD
Receive parallel data clockout D
Page 28
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 ]
