PI3L510 Datasheet, PDF (5/6 Pages) Pericom Semiconductor Corporation – 3.3V, 4-Channel, 2:1, Mux/DeMux Fast Ethernet LAN Switch w/ Single Enable

Switching Waveforms
PI3L510
3.3V, 4-Channel, 2:1, Mux/DeMux
Fast Ethernet LAN Switch w/ Single Enable
Input
2.5V
t_PLH
Output
2.5V
2.5V
3.5V
1.5V
t_PHL
2.5V
V_OH
V_OL
SEL
tPZL
Output
tPZH
Output
1.25V
1.25V
tPLZ
VDD/2
tPHZ
VDD/2
VOL +0.3V
VOH –0.3V
2.5V
0V
VOH
VOL
VOH
VOL
Voltage Waveforms Propagation Delay Times
Voltage Waveforms Enable and Disable Times
Data In
tPLHX
Data Out
at Channel X
I
Data Out
at Channel Y
tPLHy
tPHLX
tSK(o)
tPHLy
3.5V
2.5V
1.5V
VOH
2.5V
VOL
VOH
2.5V
VOL
tSK(o) = I tPLHy – tPLHx I or I tPHLy – tPHLx I
Output Skew - t_SK(o)
Input
tPLH
tPHL
Output
tSK(p) = I tPHL – tPLH I
Pulse Skew - t_SK(p)
3.5V
2.5V
1.5V
VOH
2.5V
VOL
• 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_O = 50-ohm, t_R ≤ 2.5ns, t_F ≤ 2.5ns.
• The outputs are measured one at a time with one transition per measurement.
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^® minimizes power consumption.
Power-Supply Sequencing
Proper power-supply sequencing is advised for all CMOS devices. It is recommended to always apply V_CC before applying signals to
the input/output or control pins.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd
07-0077
5
PS8720c
03/26/07