7203L12JG8

Overview

The Renesas Electronics Corporation 7203L12JG8 is an asynchronous FIFO memory integrated circuit housed in a 32-PLCC package. It features a storage capacity of 9K bits, organized as 1K words by 9 bits. The device supports unidirectional data transfer with a maximum data rate of 50MHz and an access time of 12ns. It operates on a single 4.5V to 5.5V power supply and functions within a commercial temperature range of 0°C to 70°C.

Feature Summary

• Asynchronous read and write operations allow independent clock domains for input and output data handling.
• Retransmit capability enables resetting the read pointer to its initial position upon receiving a specific pulse signal.
• Status flags including Empty, Half-Full, and Full prevent data overflow and underflow conditions.

Applications

• Multiprocessing systems requiring temporary data buffering between processors.
• Rate matching applications where data streams operate at different speeds.
• Digital signal processing interfaces needing reliable asynchronous data transfer.

Procurement Notes

Verify RoHS compliance status carefully, as legacy variants may differ from current specifications. Confirm moisture sensitivity level requirements against your assembly line capabilities. Ensure the 32-PLCC package dimensions match your PCB footprint exactly. Check for any recent product change notices regarding labeling or assembly site modifications before finalizing orders.

Selection Notes

Select this component when a 1K x 9 depth is required with 12ns speed performance. Compare against the 7203L20J8 if slower speeds are acceptable but lower cost is needed. Consider the 7202LA12JG8 if bidirectional functionality is not required but similar speed is desired. Verify that the unidirectional bus direction meets your system architecture constraints.

Part Context

This part belongs to the IDT 7200 series of high-speed asynchronous FIFOs. It shares functional compatibility with other members of the family, allowing for design flexibility across different memory depths and speeds. The 7203 variant specifically targets applications needing moderate density with fast access times in a compact surface-mount package.

Replacement Considerations

The 7203L20J8 is listed as an obsolete predecessor. Direct substitution requires verifying that the 20ns access time meets system timing margins. No active direct replacement is currently documented for this specific speed and configuration combination.