SN74HC05DBR

Overview

The SN74HC05DBR is a hex inverter with open-drain outputs from the Texas Instruments HC logic family. It operates within a supply voltage range of 2 V to 6 V and supports an operating temperature range of -40°C to +85°C. The device features six independent inverters performing the Boolean function Y = A, utilizing a 14-pin SSOP package. Key electrical characteristics include a maximum input current of 1 µA, typical propagation delay of 8 ns, and output drive capability up to 4 mA at 5 V.

Feature Summary

• Contains six independent inverters for parallel signal inversion
• Open-drain output architecture allows wired-OR or wired-AND configurations
• Compatible with LSTTL loads for direct interfacing

Applications

• Signal inversion in digital logic circuits
• Wired-OR bus implementations requiring active-low pull-down
• Level shifting between different voltage domains

Procurement Notes

Verify that the specific orderable part number matches the required package style and tape-and-reel quantity. Confirm the operating temperature grade aligns with system thermal requirements. Ensure all unused inputs are properly terminated to prevent floating states during operation.

Selection Notes

Select this component when multiple inverted signals are needed within a single integrated circuit footprint. The open-drain configuration is essential for applications requiring bus sharing or multi-driver environments. Verify that external pull-up resistors are included in the design to ensure correct high-level output states.

Part Context

This device belongs to the SN54HC05/SN74HC05 series of hex inverters. The 'HC' designation indicates High-speed CMOS technology, offering faster switching speeds compared to standard HC devices while maintaining low power consumption. The DB suffix specifically denotes the plastic small-outline (SSOP) package variant.

Replacement Considerations

• SN74HC05DR
• SN74HC05NSR
• SN74HC05PWR