SN75453BDR

Buffers, Drivers, Receivers, Transceivers Overview

The SN75453BDR is a dual peripheral driver manufactured by Texas Instruments, designed for high-current and high-speed switching applications within TTL logic systems. It features two independent channels with OR logic inputs and open-collector outputs capable of handling up to 30V. The device operates on a standard 5V supply voltage ranging from 4.75V to 5.25V, drawing a typical quiescent current of 56mA. It provides a low-level output current of 300mA and exhibits a propagation delay of 35ns. Packaged in an SOIC-8 surface-mount format, it functions within a commercial temperature range of 0°C to +70°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Features OR logic inputs for flexible control configurations
• Provides high-current capability with 300mA low-level output drive
• Supports high-voltage loads up to 30V via open-collector outputs
• Ensures latch-up immunity under specified operating conditions

Buffers, Drivers, Receivers, Transceivers Applications

• High-current peripheral interface circuits
• TTL-compatible logic system drivers
• General-purpose open-collector load switching

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm package type and environmental compliance. Ensure the design accommodates the open-collector output requirement, which necessitates external pull-up components for proper high-state operation. Confirm that the 30V maximum rating aligns with the target load voltage specifications.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when OR logic functionality is required for driving high-current or high-voltage peripherals. It serves as a direct functional replacement for previous SN75453 series devices. Consider the SOIC-8 package constraints and thermal dissipation capabilities, rated at 725mW, when designing the PCB layout for sustained operation.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SNx545xB family of dual peripheral drivers, which are engineered for robust performance in digital systems. The SN7545xB variant specifically targets commercial temperature ranges, distinguishing it from the military-grade SN5545xB series. It maintains compatibility with earlier SN75450 series designs while offering improved speed and latch-up protection characteristics.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN75453BDRE4 is a verified equivalent part number offering identical electrical specifications and pinout configuration.