VITESSE
SEMICONDUCTOR CORPORATION
Data Sheet
2.48832Gb/s 16:1 SONET/SDH
Transceiver with Integrated Clock Generator
VSC8140
Table 5: Package Pin Identification - 208 BGA
Pin #
Name
I/O
Level
Description
T3
P5
VCC
TXIN13
TXIN12
TXIN11
TXIN10
TXIN9
VEE
—
I
3.3V typ. Positive power supply
LVPECL Low-speed single-ended data
LVPECL Low-speed single-ended data
LVPECL Low-speed single-ended data
LVPECL Low-speed single-ended data
LVPECL Low-speed single-ended data
GND typ. Negative power supply
R5
I
T4
I
P6
I
T5
I
R6
—
I
U5
TXIN8
TXIN7
TXIN6
TXIN5
TXIN4
VCC
LVPECL Low-speed single-ended data
LVPECL Low-speed single-ended data
LVPECL Low-speed single-ended data
LVPECL Low-speed single-ended data
LVPECL Low-speed single-ended data
3.3V typ. Positive power supply
R7
I
T6
I
U6
I
P8
I
R8
—
I
T8
TXIN3
TXIN2
VEE
LVPECL Low-speed single-ended data
LVPECL Low-speed single-ended data
GND typ. Negative power supply
U7
I
U8
—
I
T9
TXIN1
TXIN0
VCC
LVPECL Low-speed single-ended data
LVPECL Low-speed single-ended data (LSB)(1)
P9
I
R9
—
I
3.3V typ. Positive power supply
U9
VREFIN
VREFOUT
VCC
Voltage
Voltage
Voltage reference for single-ended TXIN VCM or VREFOUT
Voltage reference for single-ended RXOUT (VOH+VOL)/2
U10
T10
R10
P10
U11
U12
T11
R11
P11
U13
T12
T13
R12
P12
O
—
O
O
—
O
O
—
O
O
—
O
O
—
3.3V typ. Positive power supply
RXOUT0
RXOUT1
VEE
LVPECL Low-speed single-ended data (LSB)(1)
LVPECL Low-speed single-ended data
GND typ. Negative power supply
RXOUT2
RXOUT3
VCC
LVPECL Low-speed single-ended data
LVPECL Low-speed single-ended data
3.3V typ. Positive power supply
RXOUT4
RXOUT5
VCC
LVPECL Low-speed single-ended data
LVPECL Low-speed single-ended data
3.3V typ. Positive power supply
RXOUT6
RXOUT7
VEE
LVPECL Low-speed single-ended data
LVPECL Low-speed single-ended data
GND typ. Negative power supply
Page 26
VITESSE SEMICONDUCTOR CORPORATION
741 Calle Plano, Camarillo, CA 93012 • 805/388-3700 • FAX: 805/987-5896
G52251-0, Rev. 4.0
9/6/00
VITESSE [ VITESSE SEMICONDUCTOR CORPORATION ]
