7203L12J

Overview

The Renesas Electronics Corporation 7203L12J is an asynchronous FIFO memory component with a density of 18K bits, organized as 2K x 9. It features a 12 ns access time and operates on a single 5.0 V supply within the 4.5 V to 5.5 V range. The device supports unidirectional data transfer at speeds up to 50 MHz. It is housed in a 32-PLCC package with J-leads and functions within a commercial temperature range of 0°C to 70°C.

Feature Summary

• Asynchronous operation for independent read and write clock domains
• Unidirectional bus architecture for dedicated data flow
• CMOS technology ensuring low power consumption
• Integrated full and empty flag outputs

Applications

• Buffering data streams between asynchronous logic blocks
• Interface bridging between different speed microprocessors
• Data acquisition systems requiring temporary storage
• Communication protocol conversion interfaces

Procurement Notes

Verify the exact suffix designation, as 'J' typically indicates PLCC packaging while 'JG' may denote RoHS compliance or specific tube packaging. Confirm lead-free status and moisture sensitivity level requirements against current project specifications. Ensure compatibility with existing 5V TTL logic levels before procurement.

Selection Notes

Select this model when a 2K x 9 depth and 12 ns speed are required for unidirectional buffering. Compare against the 7203L12P for DIP packaging needs or the 7203L12JI for alternative PLCC sourcing. Consider bidirectional variants if two-way data transfer is necessary instead of the unidirectional architecture provided here.

Part Context

This component belongs to the Renesas 7203 series of high-speed asynchronous FIFOs. The series offers various access times and organization options to suit different interface timing requirements. The 7203L12J specifically targets applications needing moderate speed with standard 9-bit word widths.

Replacement Considerations

Public confirmed substitute part numbers: 7203L12JG.