7203L12J8

Overview

The Renesas Electronics Corporation 7203L12J8 is an asynchronous FIFO memory device with a density of 18 kbit, organized as 2k x 9 bits. It features a 12 ns access time and operates on a 5.0 V core voltage within the 4.5 V to 5.5 V range. The component utilizes a unidirectional bus architecture and supports 5.0 V TTL I/O levels. It is housed in a 32-lead PLCC package with dimensions of 13.97 mm x 11.43 mm x 2.79 mm and a 1.27 mm pitch. The device operates within a commercial temperature range of 0°C to 70°C.

Feature Summary

• Supports asynchronous and simultaneous read/write operations for multiprocessing applications
• Includes status flags such as Empty, Half-Full, and Full to prevent data overflow and underflow
• Features auto-retransmit capability allowing reset of the read pointer to its initial position

Applications

• Multiprocessing systems requiring rate buffering
• Data acquisition systems needing temporary storage
• Interface circuits between devices operating at different clock speeds

Procurement Notes

Verify current availability status as this component may be obsolete or discontinued. Confirm lead-free status and moisture sensitivity level requirements for your assembly process. Check for RoHS compliance if required by your manufacturing standards. Ensure the 32-PLCC package footprint matches your PCB design constraints. Validate that the 5.0V logic levels are compatible with your system's I/O specifications.

Selection Notes

Select this part when a 2k x 9 word depth is required for asynchronous data buffering. The 12 ns access speed suits moderate-speed interface applications. Consider the PLCC package for through-hole or surface-mount compatibility depending on the specific suffix variant. Verify that the unidirectional data flow meets your system's architecture needs compared to bidirectional alternatives.

Part Context

This component belongs to the 7203 family of asynchronous FIFO memories from Renesas Electronics. The family offers various densities and access times, with the 7203 series specifically providing 18 kbit capacity. These devices are designed for high-speed data transfer between asynchronous domains, utilizing standard CMOS technology for low power consumption and reliable operation in industrial environments.

Replacement Considerations

The 7203L12JG8 is listed as an upgrade substitute for the 7203L20J8, which shares similar characteristics. Verify pinout and electrical compatibility before substitution. No other direct public substitutes are confirmed for this specific model.