SN75454BD

Buffers, Drivers, Receivers, Transceivers Overview

The SN75454BD is a dual high-current peripheral driver manufactured by Texas Instruments, designed for TTL logic systems. It features two non-inverting channels with open-collector outputs capable of sinking up to 300 mA. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports output voltages up to 30 V. Packaged in an 8-pin SOIC (SOP) format, it functions as a NOR gate-based peripheral driver. The component ensures latch-up immunity at 20 V even after conducting 300 mA, making it suitable for robust peripheral interfacing applications.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides dual high-current peripheral driving capability with open-collector outputs
• Features diode-clamped inputs for simplified circuit design and TTL compatibility
• Ensures latch-up immunity under specified high-current conditions

Buffers, Drivers, Receivers, Transceivers Applications

• Interfacing TTL logic systems with high-current peripheral devices
• Driving loads requiring sink currents up to 300 mA
• General-purpose peripheral driver circuits in industrial control systems

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the package type matches the required footprint, as the SN75454BD typically denotes the SOIC-8 variant. Confirm that the application requires open-collector outputs and can accommodate the necessary pull-up resistors. Ensure the system voltage remains within the 4.75 V to 5.25 V range to maintain specified performance characteristics and avoid damage to the internal transistor structures.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when dual-channel high-current sinking is required for TTL-compatible interfaces. It serves as a functional replacement for older SN75450 series drivers while offering improved reliability. Consider the SOIC package constraints if space is limited compared to DIP alternatives. Verify that the load current does not exceed the 300 mA limit per channel to ensure long-term operational stability.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SNx545xB series of dual peripheral drivers from Texas Instruments. It is functionally equivalent to previous SN75450 and SN75450A generations but includes enhanced latch-up protection. The SN75454B specifically implements NOR logic functionality internally connected to NPN output transistors. It is part of a family including AND, NAND, and OR variants for flexible logic interface designs.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The SN75454BP is a parameter-equivalent alternative available in a PDIP-8 package. For surface-mount requirements, verify availability of the SN75454BPSR variant. Cross-reference with SN75451B or SN75452B only if the logical inversion or specific gate type matches the circuit design requirements.