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SN74CBTLV3257

SCDS040K – DECEMBER 1997 – REVISED APRIL 2015

SN74CBTLV3257 Low-Voltage 4-Bit 1-of-2 FET Multiplexer/Demultiplexer

1 Features

3 Description

The SN74CBTLV3257 device is a 4-bit 1-of-2 high-

1

•

5-

Ω Switch Connection Between Two Ports

speed FET multiplexer/demultiplexer. The low on-

•

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

state resistance of the switch allows connections to

•

be made with minimal propagation delay.

•

Latch-Up Performance Exceeds 100 mA Per

The select (S) input controls the data flow. The FET

JESD 78, Class II

multiplexers/demultiplexers are disabled when the

•

ESD Protection Exceeds JESD 22

output-enable (OE) input is high.

–

2000-V Human-Body Model (A114-A)

This device is fully specified for partial-power-down

–

200-V Machine Model (A115-A)

damaging current will not backflow through the device

when it is powered down. The device has isolation

2 Applications

during power off.

•

Internet of Things

To ensure the high-impedance state during power up

•

Wireless Headphones

•

Television Set

pullup resistor; the minimum value of the resistor is

determined by the current-sinking capability of the

•

4-Bit Bus Multiplexing and Demultiplexing

driver.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

SSOP (16)

4.90 mm × 3.90 mm

TVSOP (16)

3.60 mm × 4.40 mm

SN74CBTLV3257

SOIC (16)

9.90 mm × 3.91 mm

VQFN (16)

4.00 mm × 3.50 mm

UQFN (16)

2.60 mm × 1.80 mm

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

the end of the datasheet.

Simplified Schematic (Each FET Switch)

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.