7005L55PF

Overview

The Renesas Electronics Corporation 7005L55PF is a high-speed, asynchronous dual-port static random-access memory (SRAM) with a storage capacity of 64 kbit. It features an 8K x 8 organization and supports parallel interface operations. The device operates within a supply voltage range of 4.5 V to 5.5 V, with a maximum power consumption of 210 mA. It offers a typical access time of 55 ns and functions reliably across an industrial temperature range from -40°C to +85°C. The component is housed in a 64-pin Thin Quad Flat Package (TQFP) designed for surface-mount technology applications.

Feature Summary

• True dual-ported memory architecture enabling simultaneous independent read/write operations from either port without conflict.
• Integrated on-chip hardware semaphore signaling and port arbitration logic to manage data integrity during concurrent access.
• Automatic power-down mode controlled by chip enable signals to minimize standby power consumption when inactive.
• TTL-compatible single 5V power supply operation ensuring straightforward integration into standard digital logic systems.

Applications

• Stand-alone 64K-bit dual-port memory modules in embedded systems
• Master/Slave dual-port RAM configurations for expanding data bus widths to 16 bits or more
• High-speed data buffering in industrial control networks requiring low-latency access
• Real-time signal processing units utilizing interrupt flag capabilities for event-driven operations

Procurement Notes

Verify the specific suffix 'PFI' or 'PF' against official Renesas documentation to confirm package type and RoHS compliance status. Confirm end-of-life status and check for authorized replacement part numbers such as the 7005L15 series before finalizing procurement plans. Ensure environmental specifications match the target application's thermal requirements.

Selection Notes

Select this component when simultaneous bidirectional data transfer is required between two independent processors or controllers. The 55 ns access speed suits moderate-to-high frequency applications where deterministic latency is critical. Consider the TQFP package constraints for PCB layout density and thermal dissipation needs relative to the 210 mA maximum current draw.

Part Context

The 7005L55PF belongs to the Renesas 7005L family of high-speed dual-port SRAMs. This family is characterized by its true dual-port capability, allowing two masters to access the same memory array concurrently. The L-series variants typically offer improved performance metrics compared to earlier generations while maintaining pin compatibility within the package footprint.

Replacement Considerations

Publicly confirmed substitute part numbers include the 7005L15PFG. Verify that the replacement maintains the required 55 ns access time or faster, identical 64-TQFP packaging, and compatible voltage ranges to ensure seamless system integration.