Automotive single-bit dual-supply bus transceiver

SN74AXC1T45-Q1

ACTIVE

Product details

Technology Family AXC Applications GPIO Bits (#) 1 High input voltage (Min) (Vih) 0.455 High input voltage (Max) (Vih) 3.6 Vout (Min) (V) 0.65 Vout (Max) (V) 3.6 IOH (Max) (mA) -12 IOL (Max) (mA) 12 Rating Automotive
Technology Family AXC Applications GPIO Bits (#) 1 High input voltage (Min) (Vih) 0.455 High input voltage (Max) (Vih) 3.6 Vout (Min) (V) 0.65 Vout (Max) (V) 3.6 IOH (Max) (mA) -12 IOL (Max) (mA) 12 Rating Automotive
SOT-SC70 (DCK) 6 4 mm² 2 x 2.1 USON (DRY) 6 1 mm² 1.5 x 1
  • AEC-Q100 Qualified for automotive applications
  • Fully configurable dual-rail design allows each port to operate with a power supply range from 0.65 V to 3.6 V
  • Operating temperature: –40°C to +125°C
  • Glitch-free power supply sequencing
  • Maximum quiescent current (ICCA + ICCB) of 10 µA (85°C maximum) and 16 µA (125°C maximum)
  • Up to 500-Mbps support when translating from 1.8 to 3.3 V
  • VCC isolation feature
    • If Either VCC input is below 100 mV, all I/O outputs are disabled and become high-impedance
  • Ioff supports partial-power-down mode operation
  • Latch-up performance exceeds 100 mA per JESD 78, Class II
  • ESD protection exceeds JESD 22
    • 8000-V Human body model
    • 1000-V Charged-device model
  • AEC-Q100 Qualified for automotive applications
  • Fully configurable dual-rail design allows each port to operate with a power supply range from 0.65 V to 3.6 V
  • Operating temperature: –40°C to +125°C
  • Glitch-free power supply sequencing
  • Maximum quiescent current (ICCA + ICCB) of 10 µA (85°C maximum) and 16 µA (125°C maximum)
  • Up to 500-Mbps support when translating from 1.8 to 3.3 V
  • VCC isolation feature
    • If Either VCC input is below 100 mV, all I/O outputs are disabled and become high-impedance
  • Ioff supports partial-power-down mode operation
  • Latch-up performance exceeds 100 mA per JESD 78, Class II
  • ESD protection exceeds JESD 22
    • 8000-V Human body model
    • 1000-V Charged-device model

The SN74AXC1T45-Q1 is AEC-Q100 qualified single-bit non-inverting bus transceiver that uses two individually configurable power-supply rails. The device is operational with both VCCA and VCCB supplies as low as 0.65 V. The A port is designed to track VCCA, which accepts any supply voltage from 0.65 V to 3.6 V. The B port is designed to track VCCB, which also accepts any supply voltage from 0.65 V to 3.6 V. Additionally, the SN74AXC1T45-Q1 is compatible with a single-supply system.

The DIR pin determines the direction of signal propagation. With the DIR pin configured HIGH, translation is from Port A to Port B. With DIR configured LOW, translation is from Port B to Port A. The DIR pin is referenced to VCCA, meaning that its logic-high and logic-low thresholds track with VCCA.

This device is fully specified for partial-power-down applications using the Ioff current. The Ioff protection circuitry ensures that no excessive current is drawn from or to an input, output, or combined I/O that is biased to a specific voltage while the device is powered down.

The VCC isolation feature ensures that if either VCCA or VCCB is less than 100 mV, both I/O ports enter a high-impedance state by disabling their outputs.

Glitch-free power supply sequencing allows either supply rail to be powered on or off in any order while providing robust power sequencing performance.

The SN74AXC1T45-Q1 is AEC-Q100 qualified single-bit non-inverting bus transceiver that uses two individually configurable power-supply rails. The device is operational with both VCCA and VCCB supplies as low as 0.65 V. The A port is designed to track VCCA, which accepts any supply voltage from 0.65 V to 3.6 V. The B port is designed to track VCCB, which also accepts any supply voltage from 0.65 V to 3.6 V. Additionally, the SN74AXC1T45-Q1 is compatible with a single-supply system.

The DIR pin determines the direction of signal propagation. With the DIR pin configured HIGH, translation is from Port A to Port B. With DIR configured LOW, translation is from Port B to Port A. The DIR pin is referenced to VCCA, meaning that its logic-high and logic-low thresholds track with VCCA.

This device is fully specified for partial-power-down applications using the Ioff current. The Ioff protection circuitry ensures that no excessive current is drawn from or to an input, output, or combined I/O that is biased to a specific voltage while the device is powered down.

The VCC isolation feature ensures that if either VCCA or VCCB is less than 100 mV, both I/O ports enter a high-impedance state by disabling their outputs.

Glitch-free power supply sequencing allows either supply rail to be powered on or off in any order while providing robust power sequencing performance.

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Technical documentation

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Type Title Date
* Data sheet SN74AXC1T45-Q1 Single-Bit Dual-Supply Bus Transceiver With Configurable Voltage datasheet (Rev. C) 03 Feb 2020
Application note Translate Voltages for MDIO 16 Jul 2021
Selection guide Voltage Translation Buying Guide (Rev. A) 15 Apr 2021
Application note Translate Voltages for GPIO 04 Aug 2020
Application note Glitch free power sequencing with AXC level translators (Rev. A) 20 Sep 2018

Design & development

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Evaluation board

5-8-LOGIC-EVM — Generic logic EVM supporting 5 through 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.
In stock
Limit: 5
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 is (...)

In stock
Limit: 5
Evaluation board

AXC-SMALLPKG1EVM — Evaluation module for small package direction-controlled translation devices

This EVM is designed to support SN74AXC8T245 in the RJW package and SN74AXC1T45 in DEA and the DTQ packages. There is also option of populating the SN74AVC4T245 in the RSV package. It is also designed to support the bus hold and Q1 devices for the respective channel counts.

The AXC devices belong to (...)

In stock
Limit: 5
Simulation model

SN74AXC1T45 IBIS Model (Rev. A)

SCEM581A.ZIP (51 KB) - IBIS Model
Simulation model

SN74AXC1T45_Q1 IBIS Model

SCEM587.ZIP (49 KB) - IBIS Model
Package Pins Download
SC70 (DCK) 6 View options
SON (DRY) 6 View options

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