DS75451N

Overview

The DS75451N is a dual peripheral driver from the DS7545X series, designed for TTL logic systems. It functions as a dual AND gate-based driver with open-collector NPN outputs internally connected to the gate bases. The device supports a supply voltage range of 4.75V to 5.25V and operates within a temperature range of 0°C to +70°C. It provides a 300mA output current capability and high-voltage outputs up to 30V without latch-up at 20V. Propagation delays are typically 25ns (low-to-high) and 25ns (high-to-low). Inputs are diode-clamped for TTL compatibility.

Feature Summary

• Dual AND gate-based peripheral driver architecture
• Open-collector NPN outputs with internal logic connection
• TTL compatible diode-clamped inputs
• High-speed switching capabilities

Applications

• High speed logic buffers
• Power drivers
• Relay drivers
• Lamp drivers
• Bus drivers and memory drivers

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity and pin alignment against the 8-DIP specification. Check datasheet revisions for any updates to electrical characteristics or absolute maximum ratings prior to final design integration.

Selection Notes

Select this component when a dual AND function with high-current sinking capability is required in a TTL environment. Ensure the load does not exceed the 300mA per channel limit. Consider thermal derating if operating near the upper temperature limit of 70°C. Verify that the open-collector output configuration aligns with the system pull-up requirements.

Part Context

This device belongs to the DS75451/2/3 series of dual peripheral drivers originally developed by National Semiconductor and now managed by Texas Instruments. It serves as a replacement for earlier TI 'A' and 'B' series devices. The series includes NAND (DS75452) and NOR (DS75453) variants sharing similar electrical profiles and packaging options.

Replacement Considerations

SN75451BDR