ICS557-08

2:1 MULTIPLEXER CHIP FOR PCI-EXPRESS GEN1

PCIE MULTIPLEXER

IDT® 2:1 MULTIPLEXER CHIP FOR PCI-EXPRESS GEN1

8

ICS557-08

REV L 112111

AC Electrical Characteristics

Unless stated otherwise, VDD=3.3 V ±5%, Ambient Temperature -40 to +85

° C

1 Test setup is R

L=50 ohms with 2 pF, Rr = 475Ω (1%).

2 Measurement taken from a single-ended waveform.

3 Measurement taken from a differential waveform.

4 Measured at the crossing point where instantaneous voltages of both CLK and CLK are equal.

5 CLK and CLK pins are tri-stated when OE is Low asserted. CLK and CLK are driven differential when OE is High

unless its PD = low.

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Units

Operating Frequency

HCSL termination

200

MHz

LVDS termination

100

MHz

Input High Voltage1,2

VIH

HCSL

660

700

850

mV

Input Low Voltage1,2

VIL

HCSL

-150

0

mV

Differential Input

Voltages

| VID |

LVDS

250

350

450

mV

Input Offset Voltage

(VIS)

LVDS

1.125

1.25

1.375

V

Output High Voltage1,2

VOH

HCSL

660

700

850

mV

Output Low Voltage1,2

VOL

HCSL

-150

0

27

mV

Crossing Point

Voltage1,2

Absolute

250

350

550

mV

Crossing Point

Voltage1,2,4

Variation over all edges

140

mV

Rise Time1,2

tOR

From 0.175 V to 0.525 V

175

332

700

ps

Fall Time1,2

tOF

From 0.525 V to 0.175 V

175

344

700

ps

Rise/Fall Time

Variation1,2

125

ps

Duty Cycle1,3

45

55

%

Output Enable Time5

All outputs

10

μs

Output Disable Time5

All outputs

10

μs

Stabilization Time

tSTABLE

From power-up VDD=3.3 V

3.0

ms

Input to Output Delay

Input differential clock to output

differential clock delay measured at

crossing point of input levels to

crossing point of output levels

24

6

ns