SN74HC05N

Overview

The SN74HC05N is a hex inverter integrated circuit from Texas Instruments, belonging to the 74HC logic family. It features six independent inverters with open-drain outputs housed in a 14-pin PDIP package. The device operates within a supply voltage range of 2V to 6V and supports input logic levels of 0.5V to 1.8V for low states and 1.5V to 4.2V for high states. Maximum propagation delay is specified at 20ns under 6V supply with 50pF load. Quiescent current is limited to 2µA, and output drive capability reaches ±5.2mA across an operating temperature range of -40°C to +85°C.

Feature Summary

• Provides six independent inverting channels within a single package
• Features open-drain output configuration suitable for wired-logic applications
• Supports wide supply voltage operation from 2V to 6V
• Compatible with standard CMOS logic families

Applications

• General-purpose digital signal inversion
• Wired-OR logic implementation using open-drain outputs
• Level shifting between different voltage domains
• Interface circuits requiring pull-up resistor compatibility

Procurement Notes

Verify the specific ordering suffix matches the required package type and tape/reel specifications. Confirm RoHS compliance status aligns with project requirements. Check manufacturer documentation for any recent product change notices affecting pinout or electrical characteristics. Ensure availability of adequate thermal management if operating near maximum temperature limits.

Selection Notes

Select this component when open-drain outputs are necessary for bus sharing or level translation. Consider the HC series speed and power consumption trade-offs against other logic families. Verify that the 14-pin DIP package fits the target PCB layout constraints. Evaluate whether the 2V minimum supply voltage meets the lowest system operating condition.

Part Context

This part belongs to the SN74HCxx series of high-speed CMOS logic devices manufactured by Texas Instruments. The HC designation indicates compatibility with standard TTL logic levels while offering improved switching speeds over older LS series parts. The 05 function code specifically denotes hex inverters with open-drain outputs, distinguishing it from push-pull variants like the SN74HC04.

Replacement Considerations

Direct substitutes include SN74HC05NE4 and SN74HC05NG4 which share identical functionality and pinouts. Cross-brand equivalents such as CD74HC05M may require verification of electrical parameter compatibility. Always confirm package dimensions and mounting hole placements before substituting.