7005L55PFG

Overview

The Renesas Electronics Corporation 7005L55PFG is a high-speed 64K-bit (8K x 8) Dual-Port Static Random Access Memory. It features asynchronous parallel interface operation with a maximum access time of 55 ns. The device operates on a single 5V power supply within a voltage range of 4.5V to 5.5V. It is housed in a 64-pin Thin Quad Flat Package (TQFP) designed for surface mount technology. The component supports industrial temperature ranges and includes hardware semaphore signaling for port arbitration.

Feature Summary

• True dual-ported memory cells enabling simultaneous independent reads from both ports without conflict
• On-chip hardware support for semaphore signaling and interrupt flags to manage data integrity between ports
• Automatic power-down feature controlled by chip enable signals to minimize standby power consumption
• TTL-compatible inputs and outputs allowing direct interfacing with standard logic families

Applications

• Stand-alone 64K-bit dual-port RAM systems
• Master/Slave dual-port configurations for 16-bit or wider word systems
• Battery-backed memory applications requiring low standby current
• Industrial control systems requiring robust data sharing between processors

Procurement Notes

Verify the specific suffix PFG against official Renesas documentation to confirm package type and temperature grade. Confirm RoHS compliance status as older variants may differ. Check for end-of-life notifications or discontinuance notices prior to procurement. Ensure ECAD models match the physical pinout of the 64-TQFP package. Validate moisture sensitivity levels for assembly processes.

Selection Notes

Select this component when simultaneous bidirectional data access is required without external arbitration logic. Compare access times against system clock requirements to ensure timing margins are met. Evaluate power consumption profiles if battery backup is utilized. Consider package availability and lead times given the component's age. Verify compatibility with existing PCB footprint designs for 64-pin TQFP.

Part Context

The 7005 series represents a family of high-speed dual-port SRAMs designed for complex data sharing applications. The L-series typically denotes specific speed grades and package options within the broader product line. This part integrates advanced arbitration logic to simplify system design compared to earlier generations. It serves as a bridge between single-port and fully synchronous multi-port memory solutions.

Replacement Considerations

Public confirmed substitute part numbers were not identified in the provided source material. Consult Renesas official resources for current equivalent recommendations.