7025L55PF8

Memory IC Overview

The 7025L55PF8 is a high-speed 128K-bit (8K x 16) dual-port static random-access memory manufactured by Renesas Electronics. 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 and supports surface-mount installation in a 100-pin TQFP package. It includes automatic power-down capabilities controlled by chip enable signals for low standby power consumption.

Memory IC Feature Summary

• True dual-ported memory architecture enabling simultaneous independent reads from both ports
• On-chip hardware support for semaphore signaling and port arbitration logic
• Separate upper-byte and lower-byte control for multiplexed bus compatibility
• Automatic power-down feature controlled by Chip Enable for low standby power

Memory IC Applications

• Stand-alone 128K-bit dual-port RAM systems
• Master/Slave dual-port RAM configurations for 32-bit or wider data bus expansion
• High-speed data buffering between asynchronous processors
• FIFO buffer implementations requiring concurrent port access

Memory IC Procurement Notes

Verify the specific suffix 'PF8' against official Renesas documentation to confirm pinout, packaging dimensions, and moisture sensitivity level. Confirm RoHS compliance status as legacy variants may differ. Check for discontinuation notices or obsolescence alerts prior to final design approval. Ensure ESD handling procedures are followed during assembly due to CMOS technology.

Memory IC Selection Notes

Select this component when true dual-port functionality with independent address and data buses is required. The 55 ns speed suits moderate-frequency applications where simultaneous read/write operations across two distinct controllers are necessary. Consider the 100-pin TQFP package constraints for PCB layout. Evaluate if the 5V logic levels match the system voltage requirements compared to lower-voltage alternatives.

Memory IC Part Context

This part belongs to the Renesas 7025 series of dual-port SRAMs, which provides high-speed non-volatile-like performance without the complexity of flash programming. The series is designed for applications requiring immediate data availability and concurrent access. The 7025L variant specifically denotes the 5V logic family with industrial temperature range options available in other speed grades.

Memory IC Replacement Considerations

IDT7025L55PF8 is an equivalent part number under the Integrated Device Technology brand, now part of Renesas.