7054L20PRFG

Memory IC Overview

The 7054L20PRFG is a high-speed, asynchronous four-port static random-access memory (SRAM) manufactured by Renesas Electronics Corporation. It features a storage capacity of 32Kb organized as 4K words by 8 bits. The device supports parallel interface access with a maximum access time of 20 ns. It operates on a single 5V power supply within a voltage range of 4.5V to 5.5V. The component is housed in a 128-pin Thin Quad Flat Package (TQFP) measuring 14x20 mm and is designed for commercial temperature ranges from 0°C to 70°C.

Memory IC Feature Summary

• True FourPort memory cells enable simultaneous independent access to the same memory locations from all ports without hardware port arbitration.
• Fully asynchronous operation allows each of the four ports to perform independent reads or writes using separate control, address, and I/O pins.
• Automatic power-down feature controlled by chip enable signals permits on-chip circuitry to enter a very low power standby mode.
• Supports battery backup operation with data retention down to 2V while maintaining TTL-compatible single 5V power supply requirements.

Memory IC Applications

• Systems requiring multiple processors to access common RAM simultaneously
• High-speed data buffering where concurrent read/write operations are necessary
• Embedded systems utilizing asynchronous multi-port memory architectures

Memory IC Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity upon receipt, as the 128-TQFP form factor requires careful handling to prevent pin damage. Ensure compliance with RoHS directives if applicable to your assembly process. Cross-reference ordering suffixes carefully, as variations may indicate lead-free status or specific packaging types that do not alter functional performance.

Memory IC Selection Notes

Select this component when system design demands true simultaneous multi-port access without external arbitration logic. The 20 ns access speed suits high-throughput applications. Verify that the 5V supply requirement aligns with existing board power rails. Consider the 128-pin TQFP footprint for PCB layout constraints. Evaluate thermal dissipation needs within the specified commercial temperature range during operation.

Memory IC Part Context

This part belongs to the 7054 series of FourPort SRAM devices, designed for applications needing concurrent memory access. The 'L' suffix typically denotes lead-free composition, while 'P' indicates the plastic TQFP package type. The 'RFG' suffix specifies the reel or tray packaging configuration and lead-free status. This series represents a specialized memory solution distinct from standard single or dual-port SRAMs.

Memory IC Replacement Considerations

Direct substitutes include other variants within the 7054 family such as the 7054L20PRF or 7054L25 series, provided access times and pinouts remain compatible. Verify that alternative packages match the 128-pin TQFP dimensions. Ensure replacement parts maintain the same asynchronous four-port architecture and 5V operating voltage specifications.