74HC659DW

Overview

The 74HC659DW is an octal bus transceiver manufactured by Rochester Electronics, LLC. It features a single element with eight bits per element and provides non-inverting transfer of data. The device supports supply voltages of 2.5V, 3.3V, and 5V. It incorporates three-state outputs to facilitate direct connection to bus lines. The component is housed in a plastic small-outline package (SOIC) with 24 terminals. It operates within a temperature range of -40°C to 85°C.

Feature Summary

• Provides non-inverting octal bus transceiver functionality for data synchronization
• Features three-state outputs designed to drive bus lines directly
• Supports multiple supply voltage levels including 2.5V, 3.3V, and 5V

Applications

• Data synchronization applications
• Bus line driving systems
• High-speed switching noise minimization circuits

Procurement Notes

Verify the manufacturer designation as Rochester Electronics, LLC, which acts as a distributor of refurbished or excess stock components rather than the original design owner. Confirm the specific package type is SOIC-24 and that the device meets RoHS compliance requirements if applicable to your assembly process. Ensure the operating voltage range matches your system design constraints before procurement.

Selection Notes

Select this component when an octal bus transceiver with three-state capability is required for system integration. The non-inverting logic function simplifies circuit design for direct data path applications. Consider the 24-pin SOIC package dimensions for PCB layout compatibility. Verify that the supported voltage range aligns with the target system power rails to ensure proper signal integrity and operation.

Part Context

Rochester Electronics specializes in sourcing and distributing obsolete and hard-to-find semiconductors. This part belongs to the HC series of high-speed CMOS logic devices. The company provides these components as alternatives for legacy designs where original manufacturers may have discontinued production. The 74HC659DW serves as a functional replacement for similar octal bus transceivers in existing electronic equipment.

Replacement Considerations

Cross-reference with other octal bus transceivers featuring three-state outputs and compatible pinouts. Verify electrical characteristics such as propagation delay and output current against the original design specifications to ensure functional equivalence.