7205L20TDB

Overview

The Renesas Electronics Corporation 7205L20TDB is an asynchronous FIFO memory device with a capacity of 72K bits, organized as 8K words by 9 bits. It operates within a supply voltage range of 4.5 V to 5.5 V and supports a data rate of 33.3 MHz with an access time of 20 ns. The component is housed in a 28-pin CDIP package and functions as a uni-directional buffer. It utilizes full and empty flags to manage data flow, preventing overflow or underflow conditions during high-speed transfers.

Feature Summary

• Asynchronous dual-port architecture for independent read and write clock domains
• Uni-directional data transfer capability using first-in-first-out logic
• Hardware status flags including Full and Empty indicators for flow control

Applications

• High-speed data buffering between asynchronous system components
• Interface bridging in industrial automation equipment
• Data storage in office automation systems

Procurement Notes

Verify the specific suffix 'TDB' against official Renesas documentation to confirm the exact package type and pinout configuration. Confirm RoHS compliance status as historical records may vary. Check for active obsolescence notices or end-of-life declarations from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when a reliable asynchronous interface is required for 9-bit wide data paths. Ensure the design accommodates the 28-pin ceramic DIP form factor. Verify that the 20 ns access time meets the timing requirements of the target application's clock domain.

Part Context

This part belongs to the 7205 series of CMOS parallel FIFOs manufactured by Renesas Electronics. The series provides robust memory solutions for digital signal processing and communication interfaces. The 7205L20TDB specifically represents the asynchronous variant designed for general-purpose data buffering tasks.

Replacement Considerations

Official substitutes include IDT7205L20TDB. Verify pin compatibility and electrical specifications before substitution.