vsc880 Vitesse Semiconductor Corp, vsc880 Datasheet - Page 22

• Manufacturer Part Number: vsc880
• Description: High Performance 16x16 Serial Crosspoint Switch Semiconductor Corporation
• Manufacturer: Vitesse Semiconductor Corp

High Performance 16x16
Serial Crosspoint Switch
Page 22
DC Characteristics
Table 5: LVDS and TTL Inputs and Outputs
Hot Swap
the passive backplane. If the input is powered down but still receiving a signal from an output, the input must tolerate
extra input current and power. If the input is powered up but has no input connection, it must go to a valid logic state.
The Table 6 below lists the LVDS I/O parameters that relate to hot swap condition.
Table 6: Hot Swap LVDS I/O Parameters
Power Dissipation
Table 7: Power Supply Currents
Parameters
Parameters
Parameter
The LVDS input and output buffers are subject to hot swap events while being connected and disconnected from
V
V
V
V
I
V
V
V
V
I
P
OZB
I
I
OCM
I
V
CDL
ICM
CO
I
I
IH
CI
OH
OL
OUT
IL
I
P
CI
I
P
IH
DDA
DDX
IL
MM
IN
DD
DD
DS
LVDS maximum current delivered per output pin
LVDS maximum current allowed per input pin
LVDS maximum added power per output pin
LVDS input default logic state
Output HIGH voltage (TTL)
Output LOW voltage (TTL)
O/P Common Mode Range (LVDS)
Differential Output Voltage (LVDS)
I/P Common Mode Range (LVDS)
Differential Input Voltage (LVDS)
Input HIGH voltage (TTL)
Input LOW voltage (TTL)
Input HIGH current (TTL)
Input LOW current (TTL)
Bi-directional (TTL) HIGH current
3-State Output OFF
Power supply current from V
Power supply current from V
Power supply current from each serial data quadrant V
Power supply current from V
Power dissipation (V
Power dissipation (V
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
Description
Tel: (800) VITESSE • FAX: [phone] • Email: [e-mail]
VITESSE
Description
SEMICONDUCTOR CORPORATION
DD
DD
= 3.3V+5%, V
= 3.3V+5%, V
DD
DDA
MM
, V
(V
Description
Internet: www.vitesse.com
(V
DDA
MM
DDA
MM
MM
(V
= 2.5V + 5%)
Min
400
200
- 50
2.4
1.2
0.8
2.0
= 3.3V + 5%)
—
—
DD
0
= 2.5V+5%, all quadrants powered)
= 2.0V+5%, all quadrants powered)
, V
DDA
Typ
—
—
—
—
—
—
—
—
—
—
= 3.3V + 5%)
DDX
Value
LOW
10
40
60
(V
V
DDX
DD
Max
1000
1600
500
500
0.4
2.1
2.5
0.8
—
—
+1.0
= 3.3V + 5%)
Units
mW
mA
mA
—
Units
mV
mV
V
V
V
V
V
V
A
A
A
Normal Operation
V
V
Input Open
DD
DD
I
I
At Min V
100 across input
At Min V
—
—
—
V
V
V
OH
OL
IN
IN
OUT
= 0V
= 0V on VSC870
(Max)
Conditions
1000
6800
30.7
28.1
= +6.0 mA
200
750
= -6.0 mA
=2.4V
= 0.4V
Conditions
=2.4V
Data Sheet
VSC880
OUT
IN
G52191-0, Rev 4.2
Units
mA
mA
mA
mA
W
W
01/05/01