7143SA90J

Overview

The Renesas Electronics Corporation 7143SA90J is a dual-port, asynchronous static random-access memory (SRAM) integrated circuit. It provides a storage capacity of 32Kb, organized as 2K words by 16 bits. The device features a parallel interface with a maximum access time of 90 ns and a write cycle time of 90 ns. It operates within a supply voltage range of 4.5V to 5.5V and supports a commercial operating temperature range of 0°C to 70°C. The component is housed in a 68-PLCC package with dimensions of 24.21x24.21 mm.

Feature Summary

• Dual-port architecture enabling independent simultaneous read/write operations on both ports.

Applications

• High-speed data buffering in industrial control systems.

Procurement Notes

Verify the specific suffix 'J' against official Renesas documentation to confirm the exact package variant and lead finish specifications. Ensure compatibility with existing board layouts for the 68-PLCC footprint. Confirm RoHS compliance status through current manufacturer declarations, as older variants may differ. Validate that the 90ns speed grade meets system timing requirements before procurement.

Selection Notes

Select this component when a non-volatile-free, high-speed parallel SRAM solution is required for embedded applications. The 7143SA90J is suitable for designs needing independent port access without complex arbitration logic. Consider the 68-PLCC package constraints for surface-mount assembly processes. Verify power consumption limits against available thermal dissipation capabilities in the target enclosure.

Part Context

This part belongs to the Renesas 7143SA series of dual-port SRAMs. These devices are designed for applications requiring fast, reliable data storage with independent access capabilities. The series typically offers various speed grades and packaging options to accommodate different performance and form-factor requirements in industrial and communication equipment.

Replacement Considerations

Consult official Renesas cross-reference lists for verified substitutes. Generic equivalents may not match the specific dual-port timing characteristics or pinout configuration. Verify electrical parameters and package dimensions before substitution.