1

www.diodes.com

September 2017

Diodes Incorporated

PI3B3253

Document Number DS40212 Rev 1-2

Features

• Near-Zeropropagationdelay

• 5Ωswitchesconnectinputstooutputs

• FastSwitchingSpeed:5.2nsmax.

• UltraLowQuiescentPower(0.2µAtypical)

–Ideallysuitedfornotebookapplications

• Pincompatiblewith74series253logicdevices

• Packaging(Pb-free&Greenavailable):

–16-pin,QSOP(Q)

–16-pin,TSSOP(L)

–16-pin,UQFN(ZHD)

Block Diagram

Enable

Select

Function

H

X

X

X

Hi-Z

X

Disable A

X

H

X

X

X

Hi-Z

Disable B

L

L

L

L

S1-0 = 0

L

L

L

H

S1-0 = 1

L

L

H

L

S1-0 = 2

L

L

H

H

S1-0 = 3

Description

ThePI3B3253isa3.3V,Dual4:1Multi-plexer/Demultiplexerwith

Hi-Z outputs that is pinout compatible with the PI74FCT253T,

74F253,and74ALS/AS/LS253.Inputscanbeconnectedtooutputs

withlowOn-Resistance(5Ω)withnoadditionalgroundbounce

noiseorpropagationdelay.

Pin Configuration

(QSOP, TSSOP)

Pin Description

Pin Name

Description

Data Inputs

Select Inputs

Enable

Data Outputs

GND

Ground

Power

Note:

1.

H = High Voltage Level, L = Low Voltage Level

I

Y

E

SW

IA0

EA

EB

S0

S1

IA1

IA2

IA3

IB0

IB1

IB2

IB3

YA

YB

SW

SW

SW

SW

SW

SW

SW

SW

1

2

3

4

5

16

6

15

7

14

8

13

12

11

10

9

S0

IB3

IB2

IB1

IB0

YB

YA

EA

GND

S1

IA3

IA2

IA1

IA0

EB

A product Line of

Diodes Incorporated

PI3B3253

3.3V, Dual 4:1 Mux/DeMux NanoSwitch™

1

2

3

4

5

6

7

8

12

11

10

9

16

15

14

13

S1

I 3

A

I 0

B

I 1

B

B

Y

EA

I 2

A

I 2

B

Pin Configuration

(UQFN)