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

SN74LVC1T45-Q1

ACTIVE

Product details

Parameters

Technology Family LVC Applications GPIO Bits (#) 1 High input voltage (Min) (Vih) 1.08 High input voltage (Max) (Vih) 5.5 Output voltage (Min) (V) 1.65 Output voltage (Max) (V) 5.5 IOH (Max) (mA) -32 IOL (Max) (mA) 32 Rating Automotive open-in-new Find other Direction-controlled voltage translators

Package | Pins | Size

SOT-SC70 (DCK) 6 4 mm² 2 x 2.1 open-in-new Find other Direction-controlled voltage translators

Features

  • 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 1.65-V to 5.5-V 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
  • ±24-mA Output Drive at 3.3 V
  • Ioff Supports Partial-Power-Down Mode Operation
  • Maximum Data Rates
    • 420 Mbps (3.3-V to 5-V Translation)
    • 210 Mbps (Translate to 3.3 V)
    • 140 Mbps (Translate to 2.5 V)
    • 75 Mbps (Translate to 1.8 V)

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Description

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 1.65 V to 5.5 V. The B-port is designed to track VCCB. VCCB accepts any supply voltage from 1.65 V to 5.5 V. This allows for universal low-voltage bidirectional translation between any of the 1.8-V, 2.5-V, 3.3-V, and 5-V 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 1.65-V to 5.5-V power supply range. It is ideal 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 ensures that if either VCC input is at GND, then both ports are in the high-impedance state.

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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet SN74LVC1T45-Q1 1.65-V to 5.5-V Single-Bit Dual-Supply Level Shifter datasheet (Rev. D) Jul. 30, 2017
Selection guide Voltage translation buying guide Jun. 13, 2019
Selection guide Little Logic Guide 2018 (Rev. G) Jul. 06, 2018
Selection guide Logic Guide (Rev. AB) Jun. 12, 2017
Application note How to Select Little Logic (Rev. A) Jul. 26, 2016
Application note Implications of Slow or Floating CMOS Inputs (Rev. D) Jun. 23, 2016
Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) Dec. 02, 2015
More literature Automotive Logic Devices Brochure Aug. 27, 2014
User guide LOGIC Pocket Data Book (Rev. B) Jan. 16, 2007
More literature Design Summary for WCSP Little Logic (Rev. B) Nov. 04, 2004
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection Jul. 08, 2004
Application note Selecting the Right Level Translation Solution (Rev. A) Jun. 22, 2004
User guide Signal Switch Data Book (Rev. A) Nov. 14, 2003
Application note Use of the CMOS Unbuffered Inverter in Oscillator Circuits Nov. 06, 2003
More literature Logic Cross-Reference (Rev. A) Oct. 07, 2003
User guide LVC and LV Low-Voltage CMOS Logic Data Book (Rev. B) Dec. 18, 2002
Application note Texas Instruments Little Logic Application Report Nov. 01, 2002
Application note TI IBIS File Creation, Validation, and Distribution Processes Aug. 29, 2002
More literature Standard Linear & Logic for PCs, Servers & Motherboards Jun. 13, 2002
Application note 16-Bit Widebus Logic Families in 56-Ball, 0.65-mm Pitch Very Thin Fine-Pitch BGA (Rev. B) May 22, 2002
Application note Power-Up 3-State (PU3S) Circuits in TI Standard Logic Devices May 10, 2002
More literature STANDARD LINEAR AND LOGIC FOR DVD/VCD PLAYERS Mar. 27, 2002
More literature Military Low Voltage Solutions Apr. 04, 2001
Application note Migration From 3.3-V To 2.5-V Power Supplies For Logic Devices Dec. 01, 1997
Application note Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A) Aug. 01, 1997
Application note CMOS Power Consumption and CPD Calculation (Rev. B) Jun. 01, 1997
Application note LVC Characterization Information Dec. 01, 1996
Application note Input and Output Characteristics of Digital Integrated Circuits Oct. 01, 1996
Application note Live Insertion Oct. 01, 1996
User guide Low-Voltage Logic (LVC) Designer's Guide Sep. 01, 1996
Application note Understanding Advanced Bus-Interface Products Design Guide May 01, 1996

Design & development

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Hardware development

EVALUATION BOARD Download
10
Description
Flexible EVM designed to support any device that has a DCK, DCT, DCU, DRL, or DBV package in a 5 to 8 pin count.
Features
  • Board design allows for versatility in evaluation
  • Supports a wide-range of logic devices
EVALUATION BOARD Download
20
Description

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 (...)

Features
  • SMB connector available for high speed operation
  • Ground port available on each header pin to maintain signal integrity
  • DIR and OE have 10K ohm pull up /pull down resistor options
  • Designed to support up to 20 different devices

CAD/CAE symbols

Package Pins Download
SC70 (DCK) 6 View options

Ordering & quality

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  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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