7005L35J

Overview

The Renesas Electronics Corporation 7005L35J is a high-speed, asynchronous dual-port static random-access memory (SRAM) device. It provides a storage capacity of 64 kbit, organized as 8k x 8 bits. The component features a parallel interface with a maximum access time of 35 ns. It operates on a single 5V power supply, with voltage specifications ranging from a minimum of 4.5 V to a maximum of 5.5 V. The device supports through-hole installation and is housed in a 68-pin PGA package. It functions within an industrial temperature range of 0°C to +70°C.

Feature Summary

• True dual-ported memory cells allow simultaneous independent reads and writes from either port without conflict.
• On-chip hardware support for semaphore signaling enables efficient data synchronization between the two ports.
• Integrated port arbitration logic manages bus contention automatically during simultaneous access attempts.
• Automatic power-down feature controlled by chip enable signals reduces standby power consumption.

Applications

• Stand-alone 64K-bit dual-port memory systems
• Master/Slave dual-port RAM configurations for 16-bit or wider word systems
• Industrial control applications requiring fast asynchronous data exchange

Procurement Notes

Verify RoHS compliance status, as documentation indicates non-compliance for this specific part number. Confirm package authenticity against the 68-PGA specification. Check for obsolescence notices, as similar variants in the series have been discontinued. Ensure sourcing channels provide valid datasheets matching the 35 ns access time and 5V operation parameters.

Selection Notes

Select this component when true dual-port functionality with hardware arbitration is required for asynchronous data sharing. The 35 ns speed suits moderate-frequency industrial applications. Consider the PGA package for through-hole prototyping or legacy board designs. Verify that the 5V TTL-compatible interface matches the system logic levels and that the operating temperature range meets environmental requirements.

Part Context

The 7005L35J belongs to the Renesas 7005 series of high-speed dual-port SRAMs. This family is designed for flexible memory expansion and complex data handling tasks. The 'L' suffix typically denotes leaded packaging options like PGA, distinguishing it from surface-mount variants such as PLCC or TQFP found in other series members.

Replacement Considerations

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