SN74S20NG4

Inverter Gates Overview

The SN74S20NG4 is a high-speed Schottky TTL logic gate manufactured by Texas Instruments. It contains two independent 4-input positive-NAND gates housed in a 14-pin ceramic dual-in-line package (CDIP). The device operates within a supply voltage range of 4.5 V to 5.5 V and supports a maximum propagation delay of 6 ns at 5 V with a 50 pF load. It features a low-level output current capability of 32 mA and a high-level output current of -8 mA, ensuring robust drive performance for digital circuits.

Inverter Gates Feature Summary

• High-speed switching characteristics enabled by Schottky clamping diodes
• Dual independent 4-input NAND logic functionality
• Robust output drive capability suitable for standard TTL loads

Inverter Gates Applications

• High-speed data processing systems
• Digital logic control circuits
• Memory address decoding networks

Inverter Gates Procurement Notes

Verify the specific suffix 'G4' indicates lead-free composition and RoHS compliance status as per manufacturer documentation. Confirm the ceramic package variant matches system thermal and mechanical requirements. Ensure sourcing channels provide traceability for military or industrial grade specifications if required by the design lifecycle.

Inverter Gates Selection Notes

Select this component when high switching speed is critical compared to standard LS or ALS series alternatives. The ceramic package offers superior environmental stability over plastic variants. Verify that the 4.5 V to 5.5 V operating range aligns with the system power supply rails and that the 14-pin CDIP footprint is compatible with the target PCB layout.

Inverter Gates Part Context

This part belongs to the SN54/74S20 family of high-speed Schottky TTL devices. It serves as a faster alternative to standard TTL gates while maintaining pin compatibility with other 74-series logic families. The SN74S20NG4 specifically denotes the commercial temperature range version in a hermetic ceramic package, distinct from the plastic SOIC or DIP variants.

Inverter Gates Replacement Considerations

Direct functional substitutes include the SN74S20N and SN74S20J. For lead-free transitions, verify compatibility with SN74S20NG4 equivalents. Plastic package versions like SN74S20N offer similar electrical performance but differ in thermal and mechanical properties.