SN74CBTU4411_16 datasheet(11/21 Pages) TI1

Numer części	SN74CBTU4411

Szczegółowy opis	Multiplexer/Demultiplexer

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0D10

0D0

H10

H0

TC

1D0

2D0

3D0

1D10

2D10

3D10

SW1

SW2

B5

F2

C2

A4

A5

A6

B6

G1

F1

E1

E2

CONTROL DECODE

LOGIC

S0

S1

VDD

VREF

B2

A1

VBIAS

D1

M2

M1

A2

DQS_EN

EN

B1

M2

M1

r1

r2

(see Note A)

11

SN74CBTU4411

www.ti.com

SCDS192A – APRIL 2005 – REVISED FEBRUARY 2016

Product Folder Links: SN74CBTU4411

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8 Detailed Description

8.1 Overview

The SN74CBTU4411 device is organized as an 11-bit 1-of-4 multiplexer/demultiplexer with a single switch-

enable (EN) input. When EN is low, the switch is enabled and the H port is connected to one of the D ports.

Ports D0 to D9 for the disabled channels are connected to VBIAS through a 400-Ω resistor. DQS_EN determines

the output voltage for the disabled D10 ports. When DQS_EN is low, this voltage is VBIAS. When DQS_EN is

high, the disabled D10 ports are connected to an internal voltage (VBIAS_DQS) source, which is approximately

equal to 0.7 VDD.

When EN is high, all the channels are disabled. Ports D0 to D9 are connected to VBIAS. For the D10 port, the

disabled output voltage is determined by the DQS_EN input. When DQS_EN is low, this voltage is VBIAS. When

DQS_EN is high, this voltage is VDD

8.2 Functional Block Diagram

A.

r1 + ron (M1), r2 + ron(M2) = 160 Ω typical

Figure 4. Logic Diagram (Positive Logic)

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SN74CBTU4411 Arkusz danych(PDF) 11 Page - Texas Instruments

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Podobny numer części - SN74CBTU4411_16

Podobny opis - SN74CBTU4411_16

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