7205L20DB

Overview

The Renesas Electronics Corporation 7205L20DB is an asynchronous dual-port FIFO memory device with a capacity of 8K x 9 bits. It operates on a first-in/first-out basis using Full and Empty flags to manage data flow. The component features a 20ns access time and supports a maximum data rate of 33.3MHz. It functions within a supply voltage range of 4.5V to 5.5V, drawing a maximum current of 120mA. The device is housed in a 28-pin CDIP package and is designed for uni-directional data transfer applications.

Feature Summary

• Asynchronous dual-port architecture enabling independent read and write operations
• Hardware-based Full and Empty flag generation for reliable data buffering
• Uni-directional data transfer capability for sequential processing

Applications

• Data buffering between asynchronous clock domains
• Interface bridging in high-speed digital systems
• Temporary storage in communication protocols

Procurement Notes

Verify RoHS compliance status as the component contains lead and is non-compliant with current environmental directives. Confirm package integrity for the 28-pin CDIP variant. Check for obsolescence notices or last-time buy availability from authorized distributors. Ensure supplier documentation matches the specific suffix DB for pinout and electrical characteristics.

Selection Notes

Select this component when a fixed-depth asynchronous FIFO is required for 9-bit wide data paths. Compare against other 7205 series variants based on access speed and package type. Consider the unidirectional nature of the device for system architecture compatibility. Verify voltage tolerance matches the 5V logic family requirements of the target application circuit.

Part Context

The 7205L20DB belongs to the 7200 series of CMOS FIFO memories manufactured by Renesas Electronics. This series provides standard dual-port memory solutions for digital signal processing and interface applications. The device represents a legacy component within the manufacturer's portfolio, often used in established industrial and telecommunications equipment designs requiring reliable asynchronous data handling.

Replacement Considerations

Public confirmed substitute part numbers include IDT7205L20DB.