2B1

1B1

2A

1A

S0

S1

1OE

2OE

1B2

1B3

1B4

2B2

2B3

2B4

SW

SW

SW

SW

SW

SW

SW

SW

7

9

14

2

1

15

6

5

4

3

10

11

12

13

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

SN74CB3Q3253

SCDS145B – OCTOBER 2003 – REVISED JUNE 2015

SN74CB3Q3253 Dual 1-of-4 FET Multiplexer – Demultiplexer

2.5-V – 3.3-V Low-Voltage High-Bandwidth Bus Switch

1 Features

3 Description

The SN74CB3Q3253 device is a high-bandwidth FET

1

•

High-Bandwidth Data Path (Up to 500 MHz)

bus switch using a charge pump to elevate the gate

•

5-V Tolerant I/Os With Device Powered Up or

voltage of the pass transistor, providing a low and flat

Powered Down

•

resistance allows for minimal propagation delay and

supports rail-to-rail switching on the data input and

Characteristics Over Operating Range

output (I/O) ports.

•

Rail-to-Rail Switching on Data I/O Ports

Device Information

–

ORDER NUMBER

PACKAGE

BODY SIZE (NOM)

–

SN74CB3Q3253DBQ

SSOP (16)

4.90 mm × 3.90 mm

•

Bidirectional Data Flow With Near-Zero

SN74CB3Q3253DGV

TVSOP (16)

3.60 mm × 4.40 mm

Propagation Delay

SN74CB3Q3253RGY

VQFN (16)

4.00 mm × 3.50 mm

•

Low Input/Output Capacitance Minimizes Loading

SN74CB3Q3253PW

TSSOP (16)

5.00 mm × 4.40 mm

(1) For all available packages, see the orderable addendum at

•

the end of the data sheet.

•

Data and Control Inputs Provide Undershoot

Logic Diagram (Positive Logic)

Clamp Diodes

•

•

•

Data I/Os Support 0- to 5-V Signal Levels (0.8-V,

1.2-V, 1.5-V, 1.8-V, 2.5-V, 3.3-V, 5-V)

•

Control Inputs Can be Driven by TTL or 5-V and

3.3-V CMOS Outputs

•

•

Latch-Up Performance Exceeds 100 mA Per

JESD 78, Class II

•

ESD Performance Tested Per JESD 22

–

2000-V Human-Body Model (A114-B, Class II)

–

1000-V Charged-Device Model (C101)

•

Supports Both Digital and Analog Applications:

USB Interface, Differential Signal Interface Bus

Isolation, Low-Distortion Signal Gating

(1)

For additional information regarding the performance

characteristics of the CB3Q family, refer to the TI application

report CBT-C, CB3T, and CB3Q Signal-Switch Families,

(SCDA008).

2 Applications

•

Video Broadcasting: IP-Based Multi-Format

Transcoder

•

Video Communications System

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.