70V05S35J

Memory IC Overview

The Renesas Electronics Corporation 70V05S35J is a dual-port static random-access memory (SRAM) integrated circuit. It features a storage capacity of 128 kbit organized as 8K x 16 words. The device operates with an access time of 35 ns and utilizes a parallel interface. It supports a supply voltage range from 4.5 V to 5.5 V. The component is housed in an 84-PLCC package with dimensions of 29.31x29.31 mm. It is designed for asynchronous operation and functions within a temperature range of -40°C to +85°C.

Memory IC Feature Summary

• True dual-port architecture enabling simultaneous independent read/write operations from either port without bus contention.
• Integrated hardware semaphore signaling and on-chip arbitration logic to manage data integrity between ports.
• Supports battery backup operation with data retention down to 2V, ensuring non-volatile data preservation during power loss.

Memory IC Applications

• High-speed data buffering in telecommunications equipment requiring low-latency memory access.
• Cache memory implementations in embedded systems and industrial control applications.
• Data logging and temporary storage in network switches and routers.

Memory IC Procurement Notes

Verify the specific suffix J against official Renesas documentation to confirm pinout compatibility and electrical specifications. Confirm RoHS compliance status as historical data indicates potential non-compliance. Check current lifecycle status, as this component may be discontinued or subject to limited availability. Ensure sourcing channels provide valid traceability for critical electronic components.

Memory IC Selection Notes

Select this component when a true dual-port SRAM with 8K x 16 organization is required for asynchronous applications. It is suitable for designs needing independent port access with hardware-based arbitration. Consider the 84-PLCC package constraints for PCB layout. Evaluate if the 35 ns access time meets system timing requirements compared to faster alternatives in the series.

Memory IC Part Context

The 70V05S35J belongs to the Renesas 70V05S family of dual-port SRAMs. This family is characterized by high-speed asynchronous operation and robust inter-port communication features. The device serves as a standalone memory solution or can be combined in master/slave configurations for wider word systems. It represents a legacy component in Renesas's memory portfolio, often replaced by newer generations with lower power consumption.

Memory IC Replacement Considerations

Official substitutes include IDT70V05S35J. Verify functional equivalence regarding pinout and electrical characteristics before replacement.