SN75477DE4G4

Buffers, Drivers, Receivers, Transceivers Overview

The SN75477DE4G4 is a dual peripheral driver from the SN75476 through SN75478 series, manufactured by Texas Instruments. It provides NAND logic functionality with two independent outputs. The device features high-voltage outputs capable of approximately 100 V and supports continuous output currents up to 300 mA. It operates within a supply voltage range of 4.5 V to 5.5 V and an ambient temperature range of 0°C to 70°C. The component utilizes diode-clamped inputs compatible with TTL or MOS logic levels and includes integrated output clamp diodes for transient suppression.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides NAND logic function with dual independent outputs
• Features high-voltage outputs and high-current drive capability
• Includes integrated output clamp diodes for inductive transient protection
• Utilizes diode-clamped inputs compatible with standard logic families

Buffers, Drivers, Receivers, Transceivers Applications

• Hammer-driver applications
• Systems requiring high current and high voltage switching
• Peripheral driver circuits

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'E4' corresponds to lead-free packaging and RoHS compliance as indicated in the manufacturer's package option addendum. Confirm the 'G4' designation aligns with the intended environmental specifications. Ensure the SOIC-8 package type matches the target PCB layout requirements before finalizing procurement orders.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when a NAND logic function is required alongside high-voltage and high-current output capabilities. It is suitable for applications needing fast switching times and robust transient protection via built-in clamp diodes. Consider the 0°C to 70°C operating temperature range and the 5 V nominal supply voltage constraints during system design.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN75476 through SN75478 family of dual peripheral drivers. While the SN75476 offers AND logic and the SN75478 provides OR logic, the SN75477 specifically implements NAND logic. All variants share identical electrical characteristics, pinouts, and physical packages, differing only in their internal logic functions.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct functional substitutes within the same family include the SN75476 (AND) and SN75478 (OR), provided the logic function change is acceptable. Other variants such as SN75477D or SN75477P offer the same NAND function in different package styles like DIP or tube-packaged SOIC.