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SN74CBTLV3245A-Q1

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Automotive 3.3-V, 1:1 (SPST), 8-channel general-purpose FET bus switch

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Data sheet

SN74CBTLV3245A-Q1

ACTIVE
Data sheet Order now

Product details

Protocols Analog Configuration 1:1 SPST Number of channels 8 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) 9 OFF-state leakage current (max) (µA) 60 Ron (max) (mΩ) 40000 VIH (min) (V) 2 VIL (max) (V) 0.8 Rating Automotive
Protocols Analog Configuration 1:1 SPST Number of channels 8 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) 9 OFF-state leakage current (max) (µA) 60 Ron (max) (mΩ) 40000 VIH (min) (V) 2 VIL (max) (V) 0.8 Rating Automotive
VQFN (RKS) 20 11.25 mm² 4.5 x 2.5
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results: –
    • Device Temperature Grade 1: –40°C to +125°C
    • Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C5
  • Standard ’245-Type Pinout
  • 5-Ω 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 250 mA Per JESD 17
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results: –
    • Device Temperature Grade 1: –40°C to +125°C
    • Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C5
  • Standard ’245-Type Pinout
  • 5-Ω 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 250 mA Per JESD 17
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)

The SN74CBTLV3245A-Q1 provides eight bits of high-speed bus switching in a standard ’245 device pinout. The low on-state resistance of the switch allows connections to be made with minimal propagation delay.

The device is organized as one 8-bit switch. When output enable (OE) is low, the 8-bit bus switch is on, and port A is connected to port B. When OE is high, the switch is open, and the high-impedance state exists between the two ports.

This device is fully specified for partial-power-down applications using Ioff. The Ioff feature maitains that damaging current does not backflow through the device when the device is powered down. The device has isolation during power off.

To maintain the high-impedance state during power up or power down, OE is tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

The SN74CBTLV3245A-Q1 provides eight bits of high-speed bus switching in a standard ’245 device pinout. The low on-state resistance of the switch allows connections to be made with minimal propagation delay.

The device is organized as one 8-bit switch. When output enable (OE) is low, the 8-bit bus switch is on, and port A is connected to port B. When OE is high, the switch is open, and the high-impedance state exists between the two ports.

This device is fully specified for partial-power-down applications using Ioff. The Ioff feature maitains that damaging current does not backflow through the device when the device is powered down. The device has isolation during power off.

To maintain the high-impedance state during power up or power down, OE is tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
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Technical documentation

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Type Title Date
* Data sheet SN74CBTLV3245A-Q1 Low-Voltage Octal FET Bus Switch datasheet PDF | HTML 16 Jan 2026
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

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