70121L35JG8

Memory IC Overview

The Renesas Electronics Corporation 70121L35JG8 is an asynchronous dual-port static random-access memory (SRAM) device. It features a storage capacity of 18 kbit organized as 2K x 9 bits. The component supports a maximum access time of 35 ns and operates within a supply voltage range of 4.5 V to 5.5 V. Maximum power supply current is specified at 210 mA. It functions in an ambient temperature range from 0°C to +70°C and is housed in a 52-lead PLCC surface-mount package.

Memory IC Feature Summary

• Dual-port architecture enabling independent simultaneous access by two processors
• Asynchronous operation for flexible system integration without clock synchronization
• Parallel interface supporting standard data bus connections

Memory IC Applications

• High-speed data buffering between asynchronous logic blocks
• Cache memory implementation in embedded processing systems
• Data storage in telecommunications equipment requiring parallel access

Memory IC Procurement Notes

Verify the specific suffix JG8 against official Renesas documentation to confirm package type and moisture sensitivity level. Confirm RoHS compliance status as legacy components may vary. Check for active production status or last-time buy notices, as availability is subject to manufacturer discontinuation schedules. Ensure design-in compatibility with existing PCB footprints for the 52-PLCC package.

Memory IC Selection Notes

Select this component when dual-port functionality is required for concurrent read/write operations by separate masters. The 35 ns access speed suits moderate-frequency asynchronous interfaces. Verify that the 5V logic family aligns with the target system voltage levels. Consider the PLCC package constraints if high-density surface mount assembly is preferred over alternative packages.

Memory IC Part Context

This part belongs to the Renesas 70121L series of dual-port SRAMs. It serves as a specialized memory solution for applications needing independent port access. The device complements single-port SRAMs by allowing simultaneous data exchange without arbitration overhead, fitting into legacy industrial and communication designs.

Memory IC Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.