8-bit direction controlled translating bus transceiver
4.5V to 5.5V on A port and 2.7V to 5.5V on B port
Robust, glitch-free power supply sequencing
VCC isolation and VCC disconnect feature
- If either VCC input is below 100mV or left floating, all I/O outputs are disabled and become high impedance
Control inputs VIH and VIL levels are referenced to VCCA voltage
High drive strength for heavier loads: 24mA drive at 3V supply
Latch-up performance exceeds 250mA per JESD 17
Operating temperature range -40°C to 85°C
ESD protection exceeds JESD 22
- 2000V Human-Body Model (A114-A)
- 1000V Charged-Device Model (C101)
Compatible with SN74LVC4245

8-bit direction controlled translating bus transceiver
4.5V to 5.5V on A port and 2.7V to 5.5V on B port
Robust, glitch-free power supply sequencing
VCC isolation and VCC disconnect feature
- If either VCC input is below 100mV or left floating, all I/O outputs are disabled and become high impedance
Control inputs VIH and VIL levels are referenced to VCCA voltage
High drive strength for heavier loads: 24mA drive at 3V supply
Latch-up performance exceeds 250mA per JESD 17
Operating temperature range -40°C to 85°C
ESD protection exceeds JESD 22
- 2000V Human-Body Model (A114-A)
- 1000V Charged-Device Model (C101)
Compatible with SN74LVC4245

This 8-bit (octal) noninverting bus transceiver uses two separate power-supply rails. The A port, VCCA, is dedicated to accepting a 5V supply level, and the configurable B port, which is designed to track VCCB, accepts voltages from 3V to 5V. This allows for translation from a 3.3V to a 5V environment and vice versa.

The SN74LVCC4245A device is designed for asynchronous communication between data buses. The SN74LVCC4245A device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so the buses effectively are isolated. The control circuitry (DIR, OE) 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 VCCA or VCCB is less than 100mV, both I/O ports enter a high-impedance state by disabling their outputs.

This 8-bit (octal) noninverting bus transceiver uses two separate power-supply rails. The A port, VCCA, is dedicated to accepting a 5V supply level, and the configurable B port, which is designed to track VCCB, accepts voltages from 3V to 5V. This allows for translation from a 3.3V to a 5V environment and vice versa.

The SN74LVCC4245A device is designed for asynchronous communication between data buses. The SN74LVCC4245A device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so the buses effectively are isolated. The control circuitry (DIR, OE) 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 VCCA or VCCB is less than 100mV, both I/O ports enter a high-impedance state by disabling their outputs.

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Top-Dokumentation	Typ	Titel	Format-Optionen	Datum
*	Data sheet	SN74LVCC4245A Octal Dual-Supply Bus Transceiver With Configurable Output Voltage and 3-State Outputs datasheet (Rev. O)	PDF \| HTML	29 Mai 2026
	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 Okt 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
	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 Dez 2015
	User guide	LOGIC Pocket Data Book (Rev. B)		16 Jan 2007
	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
	Application note	Selecting the Right Level Translation Solution (Rev. A)		22 Jun 2004
	User guide	Signal Switch Data Book (Rev. A)		14 Nov 2003
	Application note	Use of the CMOS Unbuffered Inverter in Oscillator Circuits		06 Nov 2003
	User guide	LVC and LV Low-Voltage CMOS Logic Data Book (Rev. B)		18 Dez 2002
	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
	Application note	16-Bit Widebus Logic Families in 56-Ball, 0.65-mm Pitch Very Thin Fine-Pitch BGA (Rev. B)		22 Mai 2002
	Application note	Power-Up 3-State (PU3S) Circuits in TI Standard Logic Devices		10 Mai 2002
	More literature	STANDARD LINEAR AND LOGIC FOR DVD/VCD PLAYERS		27 Mär 2002
	Application note	Migration From 3.3-V To 2.5-V Power Supplies For Logic Devices		01 Dez 1997
	Application note	Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A)		01 Aug 1997
	Application note	CMOS Power Consumption and CPD Calculation (Rev. B)		01 Jun 1997
	Application note	LVC Characterization Information		01 Dez 1996
	Application note	Input and Output Characteristics of Digital Integrated Circuits		01 Okt 1996
	Application note	Live Insertion		01 Okt 1996
	Design guide	Low-Voltage Logic (LVC) Designer's Guide		01 Sep 1996
	Application note	Understanding Advanced Bus-Interface Products Design Guide		01 Mai 1996

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