SN74LVCC4245ADWRE4

Translators, Level Shifters Overview

The SN74LVCC4245ADWRE4 is an octal bus transceiver with configurable output voltage and 3-state outputs. It utilizes two separate power-supply rails: the A port (VCCA) accepts a 4.5V to 5.5V supply, while the B port (VCCB) accepts 2.7V to 5.5V. This configuration enables translation between 3.3V and 5V environments. The device features robust glitch-free power supply sequencing and VCC isolation, disabling I/O outputs if either supply drops below 100mV or floats. It provides high drive strength of 24mA at 3V supply and includes ESD protection exceeding 2000V HBM.

Translators, Level Shifters Feature Summary

• Supports asynchronous communication between data buses using two independent supply rails for voltage level translation.
• Features robust glitch-free power supply sequencing allowing either rail to be powered on or off in any order without output glitches.
• Includes VCC isolation and disconnect functionality that forces all I/O outputs into a high-impedance state when either supply voltage falls below 100mV.
• Provides high drive strength suitable for heavier loads and longer PCB traces.

Translators, Level Shifters Applications

• Data concentrators
• Three phase UPS systems
• Servo drive power stage modules
• Air conditioner outdoor units
• String inverters

Translators, Level Shifters Procurement Notes

Verify the specific package type and suffix against official Texas Instruments documentation to ensure compatibility with design requirements. Confirm RoHS compliance status and lead times directly with authorized distributors or the manufacturer. Ensure proper handling procedures are followed due to electrostatic discharge sensitivity. Validate operating temperature ranges and electrical characteristics against application specifications before finalizing procurement decisions.

Translators, Level Shifters Selection Notes

Select this component when interfacing between 5V and 3.3V logic domains requiring high drive current and robust power sequencing. The dual-supply architecture allows flexible voltage translation compared to single-supply alternatives. Consider the SOIC-24 package dimensions and thermal characteristics for PCB layout. Evaluate the need for partial-power-down capabilities and VCC isolation features inherent to this LVCC series device.

Translators, Level Shifters Part Context

This device belongs to the SN74LVCC4245A family of octal bus transceivers designed by Texas Instruments. It is part of the broader LVCC logic series, which focuses on low-voltage CMOS technology with high drive capabilities. The 'DWRE4' suffix indicates a specific tape-and-reel packaging format within the SOIC-24 footprint, distinguishing it from tube-packaged variants like the DW.

Translators, Level Shifters Replacement Considerations

The SN74LVC4245 is explicitly listed as compatible with the SN74LVCC4245A in official documentation. Designers may switch pinouts to align with standard 20-pin devices if board redesign is permissible. Verify voltage levels and drive strengths match application needs when substituting.