Home Switches & multiplexers Analog switches & muxes Protocol & bus switches & muxes
Home
Switches & multiplexers
Analog switches & muxes
Protocol & bus switches & muxes
NEW

SN74CBTLV3257-Q1

ACTIVE

Automotive 3.3-V, 2:1 (SPDT), 4-channel analog switch with partial-power-down mode

Order now
Data sheet

SN74CBTLV3257-Q1

ACTIVE
Data sheet Order now

Product details

Protocols Analog, I2C, I2S, JTAG, RGMII, SPI, TDM, UART Configuration 2:1 SPDT Number of channels 4 Bandwidth (MHz) 200 Supply voltage (max) (V) 3.6 Supply voltage (min) (V) 2.3 Ron (typ) (mΩ) 5000 Input/output voltage (min) (V) 0 Input/output voltage (max) (V) 3.6 ESD HBM (typ) (kV) 2 Operating temperature range (°C) -40 to 125 Input/output continuous current (max) (mA) 128 COFF (typ) (pF) 5.5 Ron (max) (mΩ) 40000 VIH (min) (V) 2 VIL (max) (V) 0.8 Rating Automotive
Protocols Analog, I2C, I2S, JTAG, RGMII, SPI, TDM, UART Configuration 2:1 SPDT Number of channels 4 Bandwidth (MHz) 200 Supply voltage (max) (V) 3.6 Supply voltage (min) (V) 2.3 Ron (typ) (mΩ) 5000 Input/output voltage (min) (V) 0 Input/output voltage (max) (V) 3.6 ESD HBM (typ) (kV) 2 Operating temperature range (°C) -40 to 125 Input/output continuous current (max) (mA) 128 COFF (typ) (pF) 5.5 Ron (max) (mΩ) 40000 VIH (min) (V) 2 VIL (max) (V) 0.8 Rating Automotive
TSSOP (PW) 16 32 mm² 5 x 6.4
  • 5Ω Switch Connection Between Two Ports
  • Rail-to-Rail Switching on Data I/O Ports
  • Ioff Supports Partial-Power-Down Mode Operation
  • Latch-Up Performance Exceeds 100mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 2000V Human-Body Model (A114-A)
    • 200V Machine Model (A115-A)
  • 5Ω Switch Connection Between Two Ports
  • Rail-to-Rail Switching on Data I/O Ports
  • Ioff Supports Partial-Power-Down Mode Operation
  • Latch-Up Performance Exceeds 100mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 2000V Human-Body Model (A114-A)
    • 200V Machine Model (A115-A)

The SN74CBTLV3257-Q1 device is a 4-bit 1-of-2 highspeed FET multiplexer/demultiplexer. The low onstate 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 Ioff. The Ioff 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 VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

The SN74CBTLV3257-Q1 device is a 4-bit 1-of-2 highspeed FET multiplexer/demultiplexer. The low onstate 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 Ioff. The Ioff 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 VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
filter Find other Protocol & bus switches & muxes
Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 15
Type Title Date
* Data sheet SN74CBTLV3257-Q1 Low-Voltage 4-Bit 1-of-2 FET Multiplexer/Demultiplexer datasheet PDF | HTML 25 Dec 2025
Selection guide Little Logic Guide 2018 (Rev. G) 06 Jul 2018
Application note How to Select Little Logic (Rev. A) 26 Jul 2016
Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 02 Dec 2015
User guide LOGIC Pocket Data Book (Rev. B) 16 Jan 2007
More literature Digital Bus Switch Selection Guide (Rev. A) 10 Nov 2004
Product overview Design Summary for WCSP Little Logic (Rev. B) 04 Nov 2004
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 08 Jul 2004
User guide Signal Switch Data Book (Rev. A) 14 Nov 2003
Application note Bus FET Switch Solutions for Live Insertion Applications 07 Feb 2003
Application note Texas Instruments Little Logic Application Report 01 Nov 2002
Application note TI IBIS File Creation, Validation, and Distribution Processes 29 Aug 2002
More literature Standard Linear & Logic for PCs, Servers & Motherboards 13 Jun 2002
User guide CBT (5-V) And CBTLV (3.3-V) Bus Switches Data Book (Rev. B) 01 Dec 1998
Selection guide Logic Guide (Rev. AC) PDF | HTML 01 Jun 1994

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Package Pins CAD symbols, footprints & 3D models
TSSOP (PW) 16 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos