74FCT621ATSOG

Buffers, Drivers, Receivers, Transceivers Overview

The Renesas Electronics 74FCT621ATSOG is an octal bus transceiver featuring non-inverting open-drain outputs compatible with bus systems. It operates within a supply voltage range of 4.75 V to 5.25 V and supports data rates up to 33 MHz. The device utilizes a 20-pin SOIC package and functions across an industrial temperature range of -40°C to +85°C. Key electrical specifications include a low-level output current of 48 mA and a high-level output current of -15 mA, ensuring robust signal integrity for bidirectional data transmission in digital logic applications.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal bus transceiver architecture supporting bidirectional data transfer
• Non-inverting open-drain outputs designed for bus compatibility
• Industrial-grade operational capability across extended temperature ranges

Buffers, Drivers, Receivers, Transceivers Applications

• Bidirectional data bus interfaces in embedded systems
• Memory expansion modules requiring open-drain signaling
• Digital logic level translation between bus-compatible components

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'ATSOG' against the manufacturer's official datasheet to confirm pinout, packaging dimensions, and electrical characteristics match system requirements. Ensure compliance with RoHS directives and check for any recent product change notices that may affect assembly or sourcing. Confirm availability through authorized distributors to avoid counterfeit components.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal transceiver with open-drain outputs is required for bus-oriented applications. It is suitable for designs needing non-inverting signal paths with high drive capability. Consider the 20-pin SOIC form factor for surface-mount assembly constraints. Verify that the open-drain nature aligns with pull-up resistor requirements in the target circuit design.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74FCT logic family, which combines CMOS density with TTL-compatible speeds. The 74FCT621T series specifically addresses high-speed bus interface needs. The ATSOG variant denotes a specific tape-and-reel packaging option within the broader 74FCT product line offered by Renesas Electronics.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The IDT74FCT621ATSOG8 is listed as an alias for this component. Verify functional equivalence and pin compatibility before substitution. No other distinct replacement part numbers are confirmed in the provided documentation.