PI3L500 datasheet(4/7 Pages) PERICOM

4 / 7 page

PS8719A

03/02/05

PI3L500

3.3V, 8-Channel, 2:1 Mux/DeMux

Gigabit Ethernet LAN Switch w/Single Enable

Notes:

1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.

2. Typical values are at VCC = 3.3V, TA = 25°C ambient and maximum loading.

3. Per TTL driven input (control inputs only); A and B pins do not contribute to ICC.

Notes:

1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.

2. Typical values are at VCC = 3.3V, TA = 25°C ambient and maximum loading.

3. Measured by the voltage drop between A and B pins at indicated current through the switch. ON resistance is determined by the lower of the

voltages on the two (A & B) pins.

4. This parameter is determined by device characterization but is not production tested.

Notes:

1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.

2. Guaranteed by design.

3. The bus switch contributes no propagational delay other than the RC delay of the ON resistance of the switch and the load capacitance. The

time constant for the switch alone is of the order of 0.25ns for 10pF load. Since this time constant is much smaller than the rise/fall times of

typical driving signals, it adds very little propagational delay to the system. Propagational delay of the bus switch when used in a system is

determined by the driving circuit on the driving side of the switch and its interactions with the load on the driven side.

Switching Characteristics

Capacitance (TA = 25°C, f = 1MHz)

Parameters(5)

Description

Test Conditions

Typ.

Max.

Units

CIN

Input Capacitance

VIN = 0V

2.0

3.0

COFF(B1, B2)

Port B Capacitance, Switch OFF

4.0

6.0

CON(A/B)

A/B Capacitance, Switch ON

10.0

11.0

Power Supply Characteristics

Parameters

Description

Test Conditions(1)

Min.

Typ.(2) Max. Units

ICC

Quiescent Power Supply Current

VCC = Max., VIN = GND or VCC

—

0.5

3.5

Dynamic Electrical Characteristics Over the Operating Range (TA = –40°C to +85°C, VCC = 3.3V ±10%, GND = 0V)

Parameter

Description

Test Conditions

Min.

Typ.(2) Max. Units

XTALK

Crosstalk

RL = 100Ω, f = 250MHz

—

–27

—

OIRR

OFF Isolation

—

–32

—

Bandwidth –3dB

RL = 100Ω

—

350

—

MHz

Paramenter

Description

Min.

Typ.(2)

Max.

Units

tPD

Propagation Delay(2,3)

–

0.25

tPZH, tPZL

Line Enable Time - SEL to AN, BN

0.5

–

15.0

tPHZ, tPLZ

Line Disable Time - SEL to AN, BN

0.5

–

9.0

tSK(o)

Output Skew between center port (A4 to A5) to any other port(2)

–

0.1

0.2

tSK(p)

Skew between opposite transitions of the same output (tPHL - tPLH) (2)

–

0.1

0.2

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