SN74LVC245ANG4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVC245ANG4 is an octal bus transceiver with three-state outputs designed for 1.65-V to 3.6-V VCC operation. It facilitates asynchronous communication between data buses, transmitting data from the A bus to the B bus or vice versa based on the logic level at the direction-control (DIR) input. The device features inputs that accept voltages up to 5.5 V and supports mixed-mode signal operation. It includes Ioff circuitry to disable outputs during power-down, preventing damaging backflow current.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports live insertion, partial-power-down mode, and back drive protection via integrated Ioff circuitry
• Enables mixed-mode signal operation allowing 5-V input/output voltage compatibility with a 3.3-V VCC supply
• Provides high drive capability suitable for applications requiring significant output drive currents

Buffers, Drivers, Receivers, Transceivers Applications

• Cable modem termination systems
• Servers
• LED displays
• Network switches
• I/O expanders

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the package type matches the required footprint, as the SN74LVC245A series is available in multiple configurations including SSOP, SOIC, TSSOP, and PDIP. Confirm the specific suffix indicates the desired packaging format. Ensure the component meets RoHS compliance requirements if applicable to the manufacturing process. Cross-reference the manufacturer part number against official distributor catalogs to validate authenticity and availability status before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring bidirectional data transfer between buses operating within the 1.65-V to 3.6-V range. It is appropriate for environments where inputs must tolerate 5-V signals while the core operates at lower voltages. Consider the propagation delay specifications relative to system clock speeds. Evaluate thermal performance metrics if the application involves high switching frequencies or dense PCB layouts.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the Texas Instruments SN74LVC245A family of octal bus transceivers. The 'G4' suffix typically denotes lead-free and RoHS-compliant manufacturing standards. The 'AN' designation specifically identifies the PDIP-20 through-hole package variant. This family is engineered for general-purpose digital logic applications requiring robust bus interfacing capabilities across various industrial and consumer electronics sectors.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVC245ADBR

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle power-down conditions?

The device utilizes Ioff circuitry which disables the outputs when powered down. This prevents damaging current backflow through the device, supporting partial-power-down modes and live insertion applications.

Can this transceiver interface with 5-V logic devices?

Yes, the inputs accept voltages up to 5.5 V. This allows the device to be driven by 3.3-V or 5-V devices, making it suitable for down-voltage translation in mixed 3.3-V/5-V system environments.