7140LA25PFI

Overview

The Renesas Electronics Corporation 7140LA25PFI is an asynchronous dual-port static random-access memory (SRAM) integrated circuit. It provides a storage capacity of 8 kilobits, organized as 1K words by 8 bits. The device features a parallel interface with a maximum access time and write cycle time of 25 nanoseconds. It operates within a supply voltage range of 4.5V to 5.5V and supports surface-mount installation in a 64-TQFP package measuring 14x14 mm. The component functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Supports independent simultaneous read/write operations from two distinct ports for high-throughput data handling.

Applications

• High-speed data buffering in telecommunications equipment
• Cache memory implementation in embedded processing systems
• Data acquisition systems requiring rapid temporary storage

Procurement Notes

Verify the specific suffix PFI confirms the 64-TQFP package and tray packaging configuration. Confirm RoHS compliance status as older variants may not meet current environmental standards. Check for discontinuation notices or end-of-life notifications from Renesas Electronics. Ensure the operating voltage requirements align with the target system design before procurement.

Selection Notes

Select this component when dual-port architecture is required for concurrent master-slave memory access. Compare against single-port alternatives if only one processor accesses the memory. Verify that the 25ns speed meets the system clock requirements. Consider the 64-TQFP footprint constraints during PCB layout planning.

Part Context

This part belongs to the 7140LA series of asynchronous dual-port SRAMs manufactured by Renesas Electronics. The series typically offers various speed grades and package options to suit different performance and form-factor requirements in industrial and commercial applications.

Replacement Considerations

Consult official Renesas documentation for verified pin-compatible or functionally equivalent substitutes. Verify electrical specifications match exactly if cross-referencing with other dual-port SRAM families.