Diodes Incorporated
Back to Standard Logic


Octal Bus Transceiver with 3-State Outputs

Contact Sales

Log in or register to manage email notifications about changes to datasheets or PCNs for this part.


The 74LVT245BB is an octal transceiver designed for asynchronous communication between data buses. The 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) pin can be used to disable the device so the buses effectively are isolated.

The device is designed for operation with a power supply range of 2.7V to 3.6V.

The inputs are tolerant to 5.5V allowing this device to be used in a mixed voltage environment. The device is fully specified for partial power down applications using IOFF. The IOFF circuitry disables the output preventing damaging current backflow when the device is powered down.


  • Supply Voltage Range from 1.65V to 3.6V
  • Sinks or Sources 24 ma at VCC = 3V
  • CMOS Low Power Consumption
  • OFF Supports Partial -Power Down Operation
  • Inputs or Outputs Accept up to 5.5V
  • Inputs Can Be Driven by 3.3V or 5V Allowing for Mixed Voltage Applications
  • Schmitt Trigger Action at All Inputs
  • Typical VOLP (Quiet Output Ground Bounce) Less than 0.8V with VCC = 3.3V and TA = +25°C
  • Typical VOHV (Quiet Output dynamic VOH) Greater than 2.0V with VCC = 3.3V and TA = +25°C
  • ESD Protection Tested per JESD 22
    • Exceeds 200-V Machine Model (A115)
    • Exceeds 2000-V Human Body Model (A114)
    • Exceeds 1000-V Charged Device Model (C101)
  • Latch-Up Exceeds 250mA per JESD 78, Class I
  • Totally Lead-Free & Fully RoHS compliant
  • Halogen and Antimony Free.“Green” Device


  • General Purpose Logic
  • Bus Driving
  • Power Down Signal Isolation
  • Wide Array of Products Such as:
    • PCs, Notebooks, Netbooks, Ultrabooks, Networking Computer Peripherals, Hard Drives, CD/DVD ROM, TV, DVD, DVR, Set Top Box

Product Specifications

Product Parameters

Number of Gates 8
Family LVT
VCC Min (V) 2.7 V
VCC Maximum Rating 3.6 V
tpd max @ (1.5V) - ns
tpd max @ 1.8V (ns) - ns
tpd max @ 2.5V (ns) - ns
tpd max @ 3.3V (ns) 5 ns
tpd max @ 5.0V (ns) - ns
Input/ Output Current 64
Description Octal Bus Transceiver with 3-State Outputs
Output Type 3-State

Related Content


Technical Documents

Recommended Soldering Techniques