7025S20PFI

Memory IC Overview

The Renesas Electronics Corporation 7025S20PFI is a high-speed, asynchronous dual-port static random-access memory (SRAM) component. It features a storage capacity of 128 kbit organized as 8K words by 16 bits. The device supports simultaneous independent access from two ports with a maximum access time of 20 ns. It operates on a single TTL-compatible 5V power supply within a voltage range of 4.5 V to 5.5 V. The unit is housed in a 100-pin Thin Quad Flatpack (TQFP) surface-mount package and is rated for industrial operating temperatures ranging from -40°C to +85°C.

Memory IC Feature Summary

• True dual-ported memory architecture enabling simultaneous reads of the same memory location from both ports
• On-chip hardware support for semaphore signaling and port arbitration logic between ports
• Separate upper-byte and lower-byte control lines designed for multiplexed bus compatibility
• Automatic low-power standby mode controlled by Chip Enable inputs

Memory IC Applications

• Stand-alone 128K-bit dual-port memory systems
• Master/Slave dual-port RAM configurations for expanding data bus widths to 32 bits or more
• Industrial control systems requiring asynchronous data buffering
• Battery backup applications supporting 2V data retention

Memory IC Procurement Notes

Verify current availability status as this component may be subject to discontinuation notices. Confirm that the specific suffix PFI corresponds to the required lead finish and package variant. Check for official product change notifications regarding RoHS compliance updates or pin-to-pin replacements before finalizing procurement plans.

Memory IC Selection Notes

Select this part when simultaneous independent access to shared memory is required without external arbitration logic. Ensure the system design accommodates the 100-pin TQFP footprint and provides adequate thermal management for the specified industrial temperature range. Verify that the 5V logic levels match the target interface requirements.

Memory IC Part Context

The 7025 series represents a family of high-speed dual-port SRAMs manufactured by Renesas Electronics. This specific model belongs to the asynchronous subset, offering flexible integration into complex digital systems. The series is known for providing true dual-port functionality, allowing two distinct processors or controllers to access the same memory array concurrently.

Memory IC Replacement Considerations

Consult official Renesas documentation for confirmed substitute part numbers. Cross-reference specifications such as access time, organization, and package dimensions to ensure functional equivalence.