7054L20PRFG8

Memory IC Overview

The 7054L20PRFG8 is a high-speed, asynchronous four-port static random-access memory (SRAM) integrated circuit manufactured by Renesas Electronics Corporation. It features a storage capacity of 32Kb organized as 4K words by 8 bits. The device supports independent, simultaneous access to any memory location through four separate ports with dedicated control, address, and I/O pins. Key electrical specifications include a maximum access time of 20 ns and a supply voltage range of 4.5V to 5.5V. It operates within an ambient temperature range of 0°C to 70°C and is housed in a 128-pin TQFP package measuring 14x20 mm.

Memory IC Feature Summary

• True FourPort memory cells enable simultaneous read and write access to the same memory locations from all ports without hardware port arbitration.
• Fully asynchronous operation allows each of the four ports to function independently with separate control, address, and data lines.
• Automatic power-down feature controlled by chip enable signals permits on-chip circuitry for each port to enter a low-power standby mode.

Memory IC Applications

• Systems requiring multiple processors or controllers to access common RAM simultaneously
• High-speed data buffering where concurrent independent access is critical
• Complex embedded architectures needing parallel data path isolation

Memory IC Procurement Notes

Verify component authenticity through authorized channels due to obsolete status. Confirm package integrity and lead condition upon receipt. Check for moisture sensitivity level compliance if storage conditions were not strictly maintained. Ensure replacement sourcing aligns with current manufacturing lifecycle notices.

Memory IC Selection Notes

Select this component when independent multi-port access to shared memory is required without external arbitration logic. Consider the 20 ns access speed and 5V supply compatibility against system timing requirements. Evaluate the 128-pin TQFP footprint for PCB layout constraints compared to alternative packages like PGA.

Memory IC Part Context

This part belongs to the 7054 series of FourPort SRAMs designed for applications demanding high-speed, conflict-free memory access. It represents a specialized solution for complex digital systems where traditional single-port or dual-port memories create bottlenecks. The series emphasizes true independence among access ports to maximize throughput in parallel processing environments.

Memory IC Replacement Considerations

Public records indicate that variants such as 7054L20PRF and 7054L20PRFG are also obsolete. Verify pinout and electrical compatibility before substituting with other FourPort SRAM families. No direct active replacements are confirmed in public documentation.