7005L20J

Overview

The Renesas Electronics Corporation 7005L20J is a high-speed, asynchronous dual-port static random-access memory (SRAM) integrated circuit. It provides a storage capacity of 64 kilobits organized as 8K words by 8 bits. The device features parallel interface access with a maximum access time of 20 nanoseconds. It operates on a single 5V power supply within a voltage range of 4.5V to 5.5V. The component is housed in a 68-pin Plastic Leadless Chip Carrier (PLCC) package measuring 24.21mm x 24.21mm. It supports surface mount installation and functions reliably across an ambient temperature range of 0°C to 70°C.

Feature Summary

• True dual-ported memory architecture enabling simultaneous independent reads from both ports without conflict.
• On-chip hardware support for semaphore signaling and port arbitration logic to manage data integrity between ports.
• Automatic power-down feature controlled by chip enable signals to minimize standby power consumption.
• TTL-compatible input/output levels allowing direct interfacing with standard digital logic systems.

Applications

• Stand-alone 64K-bit dual-port RAM modules
• Master/Slave dual-port RAM configurations for 16-bit or wider word systems
• Battery-backed memory systems requiring 2V data retention

Procurement Notes

Verify the specific suffix 'J' against official Renesas documentation to confirm the exact package type and temperature grade. Ensure compatibility with existing PCB footprints for the 68-PLCC form factor. Confirm that the 0°C to 70°C operating range meets system environmental requirements. Check for RoHS compliance status if required by local regulations. Validate pinout alignment with design schematics before procurement.

Selection Notes

Select this component when simultaneous independent access to shared memory locations is required. It is suitable for applications needing fast parallel data transfer with minimal latency. Consider the 68-PLCC package constraints for board space and mounting methods. Evaluate the 20ns access speed against system timing requirements. Assess the need for hardware semaphore support versus software-based synchronization.

Part Context

The 7005L series represents a family of high-speed dual-port SRAMs designed for versatile memory expansion. These devices are engineered to function either as standalone memory blocks or as part of larger master/slave architectures. The series supports various access speeds and packaging options to accommodate different performance and physical layout needs in embedded systems.

Replacement Considerations

Publicly confirmed substitute part numbers for the 7005L20J were not identified in available documentation. Verify cross-references with IDT equivalents only if explicitly supported by manufacturer data sheets.