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SN74LVC1T45-Q1

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Automotive Single-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation

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Data sheet

SN74LVC1T45-Q1

ACTIVE
Data sheet Order now

Product details

Bits (#) 1 Data rate (max) (Mbps) 420 Topology Push-Pull Direction control (typ) Direction-controlled Vin (min) (V) 1.65 Vin (max) (V) 5.5 Vout (min) (V) 1.65 Vout (max) (V) 5.5 Applications GPIO Features Overvoltage tolerant inputs, Partial power down (Ioff), Vcc isolation Prop delay (ns) 3.9 Technology family LVC Supply current (max) (mA) 0.004 Rating Automotive Operating temperature range (°C) -40 to 125
Bits (#) 1 Data rate (max) (Mbps) 420 Topology Push-Pull Direction control (typ) Direction-controlled Vin (min) (V) 1.65 Vin (max) (V) 5.5 Vout (min) (V) 1.65 Vout (max) (V) 5.5 Applications GPIO Features Overvoltage tolerant inputs, Partial power down (Ioff), Vcc isolation Prop delay (ns) 3.9 Technology family LVC Supply current (max) (mA) 0.004 Rating Automotive Operating temperature range (°C) -40 to 125
SOT-SC70 (DCK) 6 4.2 mm² 2 x 2.1
  • 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 H2
    • Device CDM ESD Classification Level C3B
  • Fully configurable dual-rail design allows each port to operate over the full 1.65V to 5.5V power-supply range
  • VCC isolation feature – if either VCC input is at GND, both ports are in the high-impedance state
  • DIR input circuit referenced to VCCA
  • ±24mA output drive at 3.3V
  • Ioff supports partial-power-down mode operation
  • Maximum data rates:
    • 420Mbps (3.3V to 5V translation)
    • 210Mbps (translate to 3.3V)
    • 140Mbps (translate to 2.5V)
    • 75Mbps (translate to 1.8V)
  • 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 H2
    • Device CDM ESD Classification Level C3B
  • Fully configurable dual-rail design allows each port to operate over the full 1.65V to 5.5V power-supply range
  • VCC isolation feature – if either VCC input is at GND, both ports are in the high-impedance state
  • DIR input circuit referenced to VCCA
  • ±24mA output drive at 3.3V
  • Ioff supports partial-power-down mode operation
  • Maximum data rates:
    • 420Mbps (3.3V to 5V translation)
    • 210Mbps (translate to 3.3V)
    • 140Mbps (translate to 2.5V)
    • 75Mbps (translate to 1.8V)

The SN74LVC1T45-Q1 device is a single-bit, noninverting bus transceiver that uses two separate configurable power supply rails. The A-port is designed to track VCCA. VCCA accepts any supply voltage from 1.65V to 5.5V. The B-port is designed to track VCCB. VCCB accepts any supply voltage from 1.65V to 5.5V. This allows for universal low-voltage bidirectional translation between any of the 1.8V, 2.5V, 3.3V, and 5V voltage nodes.

The SN74LVC1T45-Q1 device is a single-bit, non-inverting level translator. The fully configurable dual-rail design allows each port to overate over the full 1.65V to 5.5V power supply range. This device is an excellent choice for applications that need a wide bidirectional translation range.

The SN74LVC1T45-Q1 is designed so that the DIR input is powered by VCCA.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

The VCC isolation feature is designed so that if either VCC input is at GND, then both ports are in the high-impedance state.

The SN74LVC1T45-Q1 device is a single-bit, noninverting bus transceiver that uses two separate configurable power supply rails. The A-port is designed to track VCCA. VCCA accepts any supply voltage from 1.65V to 5.5V. The B-port is designed to track VCCB. VCCB accepts any supply voltage from 1.65V to 5.5V. This allows for universal low-voltage bidirectional translation between any of the 1.8V, 2.5V, 3.3V, and 5V voltage nodes.

The SN74LVC1T45-Q1 device is a single-bit, non-inverting level translator. The fully configurable dual-rail design allows each port to overate over the full 1.65V to 5.5V power supply range. This device is an excellent choice for applications that need a wide bidirectional translation range.

The SN74LVC1T45-Q1 is designed so that the DIR input is powered by VCCA.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

The VCC isolation feature is designed so that if either VCC input is at GND, then both ports are in the high-impedance state.
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Technical documentation

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* Data sheet SN74LVC1T45-Q1 Automotive 1.65V to 5.5V Single-Bit Dual-Supply Level Shifter datasheet (Rev. F) PDF | HTML 21 Jun 2024
Selection guide Logic Guide (Rev. AC) PDF | HTML 13 Nov 2025
Application note Schematic Checklist - A Guide to Designing With Fixed or Direction Control Translators PDF | HTML 02 Oct 2024
Application note Schematic Checklist - A Guide to Designing with Auto-Bidirectional Translators PDF | HTML 12 Jul 2024
Application note Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A) PDF | HTML 03 Jul 2024
Application note Implications of Slow or Floating CMOS Inputs (Rev. E) 26 Jul 2021
Selection guide Voltage Translation Buying Guide (Rev. A) 15 Apr 2021
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Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 02 Dec 2015
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Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 08 Jul 2004
Application note Selecting the Right Level Translation Solution (Rev. A) 22 Jun 2004
User guide Signal Switch Data Book (Rev. A) 14 Nov 2003
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User guide LVC and LV Low-Voltage CMOS Logic Data Book (Rev. B) 18 Dec 2002
Application note Texas Instruments Little Logic Application Report 01 Nov 2002
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Design & development

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Evaluation board

5-8-LOGIC-EVM — Generic logic evaluation module for 5-pin to 8-pin DCK, DCT, DCU, DRL and DBV packages

Flexible EVM designed to support any device that has a DCK, DCT, DCU, DRL, or DBV package in a 5 to 8 pin count.
User guide: PDF
Not available on TI.com
Evaluation board

AVCLVCDIRCNTRL-EVM — Generic EVM for Direction-Controlled Bidirectional Translation Device Supporting AVC and LVC

The generic EVM is designed to support one, two, four and eight channel LVC and AVC direction-controlled translation devices. It also supports the bus hold and automotive -Q1 devices in the same number of channels. The AVC are low voltage translation devices with lower drive strength of 12mA. LVC (...)

User guide: PDF
Not available on TI.com
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SOT-SC70 (DCK) 6 Ultra Librarian
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