74CB3Q3305DCURG4 datasheet(2/13 Pages) TI

No de pièce	74CB3Q3305DCURG4

Description	DUAL FET BUS SWITCH 2.5-V/3.3-V LOW-VOLTAGE HIGH-BANDWIDTH BUS SWITCH

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Fabricant	TI [Texas Instruments]

Site Internet	http://www.ti.com

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1A

1OE

SW

1B

2A

2OE

SW

2B

2

1

5

7

3

6

A

EN(1)

B

(1) EN is the internal enable signal applied to the switch.

Charge

Pump

VCC

SN74CB3Q3305

SCDS141B – OCTOBER 2003 – REVISED OCTOBER 2009

www.ti.com

ORDERING INFORMATION

TOP-SIDE MARKING

TA

PACKAGE (1)

ORDERABLE PART NUMBER

(2)

Tube

SN74CB3Q3305PW

TSSOP – PW

BU305

–40°C to 85°C

Tape and reel

SN74CB3Q3305PWR

VSSOP – DCU

Tape and reel

SN74CB3Q3305DCUR

GAR_

(1)

Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.

(2)

The last character designates assembly/test site.

DESCRIPTION/ORDERING INFORMATION (CONTINUED)

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry prevents damaging

current backflow through the device when it is powered down. The device has isolation during power off.

To ensure the high-impedance state during power up or power down, OE should be tied to GND through a

pulldown resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver.

Table 1. FUNCTION TABLE

(EACH BUS SWITCH)

INPUT

INPUT/OUTPUT

FUNCTION

OE

A

H

B

A port = B port

L

Z

Disconnect

LOGIC DIAGRAM (POSITIVE LOGIC)

SIMPLIFIED SCHEMATIC, EACH FET SWITCH (SW)

2

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Product Folder Link(s): SN74CB3Q3305

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Fabricant	No de pièce	Fiches technique	Description
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Fabricant	No de pièce	Fiches technique	Description
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