SN74LVCZ245ADWG4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVCZ245ADWG4 is an octal bus transceiver with 3-state outputs designed for 2.7-V to 3.6-V VCC operation. It supports asynchronous communication between data buses, transmitting data from the A bus to the B bus or vice versa based on the DIR input level. The device features inputs that accept voltages up to 5.5 V, enabling mixed-mode signal operation in 5-V input/output and 3.3-V VCC systems. It offers a maximum propagation delay of 6.3 ns at 3.3 V and typical output ground bounce of 2 V. The component includes Ioff and power-up 3-state support for hot insertion applications.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operation allowing 5-V input/output voltage compatibility with 3.3-V VCC supply
• Provides Ioff and power-up 3-state functionality to prevent damaging current backflow and driver conflict during hot insertion
• Features latch-up performance exceeding 100 mA per JESD 78, Class II standards

Buffers, Drivers, Receivers, Transceivers Applications

• Asynchronous communication between data buses
• Mixed 3.3-V/5-V system environments requiring voltage translation
• Hot-insertion applications utilizing Ioff and power-up 3-state support

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package variant, as the 'G' suffix indicates environmental compliance but does not alter electrical function. Confirm the operating temperature range is -40°C to 85°C. Ensure OE is tied to VCC through a pullup resistor to ensure high-impedance state above 1.5 V during power-up. Check that unused inputs are held at VCC or GND to ensure proper device operation.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring bidirectional data transfer between two 8-bit buses under 3.3-V logic levels. It is suitable for interfaces where input signals may originate from 5-V devices while the core operates at 3.3 V. Consider its low power dissipation capacitance and fast propagation delays for high-speed data bus applications requiring isolation capabilities via the OE control input.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the Texas Instruments SN74LVCZ245A family of octal bus transceivers. The 'DWG4' designation specifies the SOIC (Wide) package with lead-free and halogen-free materials compliant with RoHS standards. It is a production-active device recommended for new designs, offering pin-compatible alternatives in other packages such as SSOP, TSSOP, and SOP.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include SN74LVCZ245ADW (non-G4 version), SN74LVCZ245ANSR, SN74LVCZ245APWR, and SN74LVCZ245ADBR. These parts share identical electrical specifications and pinouts but differ in package type or packaging quantity.