DS75451MX

Overview

The DS75451MX is a dual peripheral driver from the DS7545X series, designed for TTL logic systems. It features an AND gate configuration with outputs internally connected to NPN transistors. 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-speed switching characteristics. Propagation delays are typically 25ns at VCC=5V. The component is housed in an 8-pin SO package.

Feature Summary

• Dual peripheral drivers with internal AND gate logic
• High current output capability up to 300mA
• TTL compatible diode-clamped inputs
• High voltage output handling without latch-up

Applications

• High speed logic buffers
• Power drivers
• Relay drivers
• Lamp drivers
• MOS drivers

Procurement Notes

Verify the manufacturer origin carefully, as National Semiconductor was acquired by Texas Instruments. Confirm the specific suffix 'MX' matches the required SO-8 package and operating temperature range. Check for RoHS compliance status if environmental regulations apply to your design. Ensure the datasheet version aligns with the production batch specifications.

Selection Notes

Select this component when a dual AND-based peripheral driver is required for TTL interfaces. Compare propagation delay and power dissipation limits against system requirements. Consider the SO-8 package constraints for thermal management. Verify input voltage levels match the source logic family to ensure proper signal integrity and compatibility.

Part Context

This part belongs to the DS7545X series, which includes NAND (DS75452) and NOR (DS75453) variants. These devices were originally manufactured by National Semiconductor before its acquisition by Texas Instruments. The series serves as a replacement for older TI 'A' and 'B' series drivers, maintaining functional compatibility while offering modern packaging options.

Replacement Considerations

Direct replacements include DS75451N for DIP packages or other DS75451 variants with matching logic functions. Verify pinout compatibility and electrical parameters such as output current and supply voltage ranges before substitution.

FAQ

What is the logic function of the DS75451?

The DS75451 contains two independent AND gates with their outputs connected to NPN transistors.

What is the maximum output current?

The device can sink up to 300mA per output channel.

Is the device latch-up resistant?

Yes, the datasheet specifies no output latch-up occurs at 20V.