SN74CBTLV3257_15 Datasheet, PDF (1/28 Pages) Texas Instruments – FET Multiplexer/Demultiplexer

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SN74CBTLV3257
SCDS040K – DECEMBER 1997 – REVISED APRIL 2015
SN74CBTLV3257 Low-Voltage 4-Bit 1-of-2 FET Multiplexer/Demultiplexer
1 Features
•1 5-Ω Switch Connection Between Two Ports
• Rail-to-Rail Switching on Data I/O Ports
• I_off Supports Partial-Power-Down Mode Operation
• Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
• ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
2 Applications
• Internet of Things
• Wireless Headphones
• Television Set
• 4-Bit Bus Multiplexing and Demultiplexing
3 Description
The SN74CBTLV3257 device is a 4-bit 1-of-2 high-
speed FET multiplexer/demultiplexer. The low on-
state resistance of the switch allows connections to
be made with minimal propagation delay.
The select (S) input controls the data flow. The FET
multiplexers/demultiplexers are disabled when the
output-enable (OE) input is high.
This device is fully specified for partial-power-down
applications using I_off. The I_off feature ensures that
damaging current will not 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 V_CC through a
pullup resistor; the minimum value of the resistor is
determined by the current-sinking capability of the
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.