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
U14
U15
R13
N16
P17
L14
L15
M16
L16
M17
K14
K15
K16
L17
J17
RXOUT8
RXOUT9
VCC
O
O
LVPECL Low-speed single-ended data
LVPECL Low-speed single-ended data
3.3V typ. Positive power supply
—
—
O
VCC
3.3V typ. Positive power supply
RXOUT10
RXOUT11
RXOUT12
VCC
LVPECL Low-speed single-ended data
LVPECL Low-speed single-ended data
LVPECL Low-speed single-ended data
3.3V typ. Positive power supply
O
O
—
O
RXOUT13
RXOUT14
VEE
LVPECL Low-speed single-ended data
LVPECL Low-speed single-ended data
GND typ. Negative power supply
O
—
O
RXOUT15
RXPARITYOUT
VCC
LVPECL Low-speed single-ended data (MSB)(1)
O
LVPECL Receiver Parity bit output
—
O
3.3V typ. Positive power supply
RXCLK16O-
RXCLK16O+
VEE
LVPECL Parallel clock output (155.52MHz), complement
LVPECL Parallel clock output (155.52MHz), true
GND typ. Negative power supply
H17
H16
H15
H14
G17
F17
G16
G15
G14
D17
C17
E15
D16
E14
A17
A15
A12
A11
B12
B8
O
—
—
O
VCC
3.3V typ. Positive power supply
RXCLK16_32O-
RXCLK16_32O+
CLK128O-
CLK128O+
VCC
LVPECL Divide-by-16 or -32 clock output, complement
LVPECL Divide-by-16 or -32 clock output, true
LVPECL Divide-by-128 clock output, complement
LVPECL Divide-by-128 clock output, true
3.3V typ. Positive power supply
O
O
O
—
I
RXCLKO_FREQSEL
LOS
TTL
TTL
TTL
TTL
RXCLKO16_32 frequency select
Loss of Signal control
I
POL
I
Polarity Signal Control
EQULOOP
VCC
I
Equipment loopback, active high
—
O
3.3V typ. Positive power supply
PARERR
NC
TTL
—
Parity error output
—
—
—
—
—
—
No connect, leave unconnected(2)
No connect, leave unconnected(2)
No connect, leave unconnected(2)
No connect, leave unconnected(2)
No connect, leave unconnected(2)
No connect, leave unconnected(2)
NC
—
NC
—
NC
—
NC
—
NC
—
G52251-0, Rev. 4.0
9/6/00
VITESSE SEMICONDUCTOR CORPORATION
741 Calle Plano, Camarillo, CA 93012 • 805/388-3700 • FAX: 805/987-5896
Page 27
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