VSC8140QR VITESSE [Vitesse Semiconductor Corporation], VSC8140QR Datasheet - Page 22

• Manufacturer Part Number: VSC8140QR
• Description: 2.48832Gb/s 16:1 SONET/SDH Transceiver with Integrated Clock Generator
• Manufacturer: VITESSE [Vitesse Semiconductor Corporation]

Transceiver with Integrated Clock Generator
2.48832Gb/s 16:1 SONET/SDH
Page 22
Table 4: Package Pin Identification - 128 PQFP
NOTES: (1) No connect (NC) pin must be left unconnected. Connecting this pin to either the positive or negative power supply
Pin #
109
110
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
111
rails may cause improper operation or failure of the device; or in extreme cases, cause permanent damage to the device.
VSC8140. RXOUT0; pin 88 (MSB) has been changed to RXOUT15; pin 111 (MSB) and TXIN15; pin 63 (LSB) has been
changed to TXIN0; pin 83 (LSB).
(2) There has been a change in the naming of the pins of the Low-Speed Parallel Receive and Transmit pins of the
RXCLKO_FREQSEL
RXCLK16_32O+
RXPARITYOUT
RXCLK16_32O-
RXCLK16O+
RXCLK16O-
CLK128O+
EQULOOP
CLK128O-
RXOUT14
RXOUT15
PARERR
Name
VCC
VCC
VCC
VCC
VEE
VEE
LOS
POL
741 Calle Plano, Camarillo, CA 93012 • 805/388-3700 • FAX: [phone]
VITESSE
I/O
—
—
—
—
—
—
O
O
O
O
O
O
O
O
O
O
I
I
I
I
SEMICONDUCTOR CORPORATION
VITESSE SEMICONDUCTOR CORPORATION
GND typ.
GND typ.
LVPECL
LVPECL
3.3V typ.
LVPECL
3.3V typ.
LVPECL
LVPECL
3.3V typ.
3.3V typ.
LVPECL
LVPECL
LVPECL
LVPECL
Level
TTL
TTL
TTL
TTL
TTL
Low-speed single-ended data
Negative power supply
Low-speed single-ended data (MSB)
Receiver parity bit output
Positive power supply
Parallel clock output (155.52MHz), complement
Parallel clock output (155.52MHz), true
Negative power supply
Positive power supply
Divide-by-16 or -32 clock output, complement
Divide-by-16 or -32 clock output, true
Divide-by-128 clock output, complement
Divide-by-128 clock output, true
Positive power supply
RXCLKO16_32 frequency select
Loss of Signal control
Polarity Signal Control
Equipment loopback, active high
Positive power supply
Parity error output
Description
(2)
VSC8140
Data Sheet
G52251-0, Rev. 4.0
9/6/00