7005L20JG

Overview

The Renesas Electronics Corporation 7005L20JG is a high-speed, asynchronous dual-port static random-access memory (SRAM) integrated circuit. It features a storage capacity of 64 kilobits organized as 8K words by 8 bits. The device supports simultaneous independent access to the same memory location from two separate ports. Key electrical parameters include a maximum access time of 20 nanoseconds and a supply voltage range of 4.5 volts to 5.5 volts. It operates within an ambient temperature range of 0°C to 70°C. The component is housed in a 68-pin Plastic Leadless Chip Carrier (PLCC) package with J-leads.

Feature Summary

• True dual-ported memory architecture enabling simultaneous reads of identical memory locations without conflict
• On-chip hardware support for semaphore signaling and port arbitration logic between independent ports
• Automatic power-down feature controlled by chip enable inputs to minimize standby power consumption
• TTL-compatible single 5V power supply operation with battery backup capability for data retention

Applications

• Stand-alone 64K-bit dual-port RAM systems
• Master/Slave dual-port configurations for 16-bit or wider word systems
• High-speed data buffering in industrial control applications
• Real-time signal processing interfaces requiring concurrent data access

Procurement Notes

Verify the specific suffix 'G' against official Renesas documentation to confirm lead frame material and RoHS compliance status. Confirm package dimensions match the 68-PLCC specification. Check current manufacturing status as legacy components may be subject to discontinuation notices. Ensure environmental operating limits align with system requirements.

Selection Notes

Select this component when simultaneous independent access to shared memory is required. Verify that the 20 ns access speed meets system timing constraints. Ensure the 68-pin PLCC package fits the available PCB footprint. Confirm compatibility with 5V logic levels and TTL input thresholds.

Part Context

The 7005 series represents a family of high-speed dual-port SRAMs designed for applications requiring concurrent data access. This specific model utilizes asynchronous operation for both ports. The technology allows for flexible bus width expansion and includes built-in interrupt flags. It serves as a bridge between different processing speeds in complex electronic architectures.

Replacement Considerations

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