TC74HC20AF-ELF

Inverter Gates Overview

The TC74HC20AF-ELF is a dual 4-input NAND gate integrated circuit manufactured by Toshiba Semiconductor and Storage using silicon gate C2MOS technology. It operates within a supply voltage range of 2 V to 6 V and supports an operating temperature from -40 °C to +85 °C. The device features high-speed operation with a typical propagation delay of 8 ns at 5 V, low power dissipation with a maximum quiescent current of 1 μA, and symmetrical output drive capability of 4 mA minimum. It includes input protection circuits against static discharge.

Inverter Gates Feature Summary

• High-speed logic operation comparable to LSTTL while maintaining CMOS low power consumption
• Internal three-stage buffer circuit provides high noise immunity and stable output
• Input pins equipped with protection circuits for static discharge and transient excess voltage

Inverter Gates Applications

• General digital logic processing in consumer electronics
• Industrial control systems requiring reliable logic gating
• Automotive electronic modules (excluding safety-critical applications)

Inverter Gates Procurement Notes

Verify the specific ordering suffix matches the required package type, as the AF designation corresponds to SOP-14 packaging. Confirm RoHS compliance status directly with the manufacturer or authorized distributor, as environmental declarations may vary by production batch. Ensure the procurement channel is an authorized source to guarantee component authenticity and traceability.

Inverter Gates Selection Notes

Select this component when a dual 4-input NAND function is required in surface-mount designs. It serves as a pin-compatible replacement for 74LS20 devices, allowing for direct upgrades to lower power consumption without altering board layout. Consider the 2 V to 6 V operating range for compatibility with various logic families.

Inverter Gates Part Context

This part belongs to the TC74HC20A series of high-speed CMOS logic gates. It is functionally equivalent to the standard 74HC20 logic family but utilizes Toshiba's proprietary C2MOS fabrication process. The product line is designed to bridge the performance gap between traditional TTL logic and standard CMOS technologies.

Inverter Gates Replacement Considerations

TC74HC20AP

Inverter Gates FAQ

What is the typical propagation delay of the TC74HC20AF?

The typical propagation delay is 8 ns when measured at a supply voltage of 5 V.

How does the TC74HC20AF compare to the 74LS20?

It offers pin and function compatibility with the 74LS20 while providing significantly lower power dissipation and higher speed operation.