pi3l500 Pericom Semiconductor Corporation, pi3l500 Datasheet - Page 6

• Manufacturer Part Number: pi3l500
• Description: 3.3v, 16-bit To 8-bit, Mux / Demux Gigabit Ethernet Lan Switch Single Enable W/led Switching
• Manufacturer: Pericom Semiconductor Corporation

Notes:
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Applications Information
Logic Inputs
The logic control inputs can be driven up to +3.6V regardless of the supply voltage. For example, given a +3.3V supply, the output enables
or select pins may be driven low to 0V and high to 3.6V. Driving the control pin(s) Rail-to-Rail
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
Switching Waveforms
at Channel X
at Channel Y
Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
All input impulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, Z
The outputs are measured one at a time with one transition per measurement.
Output
Data Out
Data Out
Input
Data In
Voltage Waveforms Propagation Delay Times
07-0075
t
PLH
t PLHy
t PLHX
2.5V
t SK(o) = I t PLHy – t PLHx I or I t PHLy – t PHLx I
Output Skew - t
I
2.5V
SK(o)
2.5V
t PHLX
t PHLy
2.5V
t SK(o)
t
PHL
3.5V
1.5V
V
V
OH
OL
3.5V
2.5V
1.5V
V OH
2.5V
V OL
V OH
2.5V
V OL
6
Output
Output
Output
Input
Gigabit Ethernet LAN Switch w/Single Enable
Voltage Waveforms Enable and Disable Times
SEL
t PZH
t PZL
t PLH
1.25V
Pulse Skew - t
3.3V, 8-Channel, 2:1 Mux/DeMux
t SK(p) = I t PHL – t PLH I
V DD/2
V DD/2
O
®
= 50Ω, t
minimizes power consumption.
t PHZ
t PLZ
R
≤ 2.5ns, t
SK(p)
1.25V
t PHL
V OL +0.3V
V OH –0.3V
F
PS8719D
≤ 2.5ns.
PI3L500
2.5V
0V
V OH
V OL
V OH
V OL
3.5V
2.5V
1.5V
V OH
2.5V
V OL
03/23/07