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
VTT
J03
J04
PWR
PWR
PWR
PWR
O
GND
-2V
Ground
-2.0V power supply
-2.0V power supply
Ground
VTT
J13
-2V
VCC
J14
GND
TTL
TTL
TTL
GND
+3.3V
GND
GND
+3.3V
GND
TTL
TTL
TTL
TTL
-2V
RXOUTC6
RXOUTC7
RXOUTAP
VCC
J15
Parallel output bus data C
Parallel output bus data C
Parallel output bus A parity
Ground
J16
O
K01
K02
K03
K04
K13
K14
K15
K16
L01
L02
L03
L04
L13
L14
L15
L16
M01
M02
M03
M04
M13
M14
M15
M16
N01
N02
N03
N04
N05
N06
N07
N08
O
PWR
PWR
PWR
PWR
PWR
PWR
O
VTTL
+3.3V power supply
Ground
VCC
VCC
Ground
VTTL
+3.3V power supply
Ground
VCC
RXOUTC5
RXLOF
FRERR
RXOUTBP
VTT
Parallel output bus data C
Loss of frame (active high)
Frame error (active high)
Parallel output bus B parity
-2.0V power supply
-2.0V power supply
Parallel output bus data C
Parallel output bus data C
Parallel output bus data C
Parity byte B1 error (active high)
Severely errored frame (active high)
Ground
O
O
O
PWR
PWR
O
VTT
-2V
RXOUTC2
RXOUTC4
RXOUTC3
B1ERR
RXSEF
VCC
TTL
TTL
TTL
TTL
TTL
GND
+3.3V
+3.3V
GND
TTL
TTL
TTL
TTL
GND
O
O
O
O
PWR
PWR
PWR
PWR
O
VTTL
+3.3V power supply
+3.3V power supply
Ground
VTTL
VCC
RXOUTC0
RXOUTC1
SELFRDET1
FRDETEN
VCC
Parallel output bus data C
Parallel output bus data C
Frame detect mode select
Frame detect enable (active high)
Ground
O
I
I
PWR
N/C
No connection (leave open)
No connection (leave open)
Ground
N/C
VCC
PWR
PWR
PWR
GND
GND
GND
VCC
Ground
VCC
Ground
Page 30
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 ]
