7140LA25PF8

Overview

The 7140LA25PF8 is an asynchronous dual-port static random-access memory (SRAM) integrated circuit manufactured by Renesas Electronics Corporation. It provides a storage capacity of 8 kilobits, organized as 1K words by 8 bits. The device features parallel interface access with a maximum access 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-pin Thin Quad Flat Package (TQFP) measuring 14x14 mm. The component is classified as non-volatile data storage technology but retains data only while powered.

Feature Summary

• Supports simultaneous independent read/write operations on two separate ports for concurrent data handling.

Applications

• High-speed data buffering in communication systems
• Cache memory implementation in embedded processors
• FIFO buffer applications in industrial control

Procurement Notes

Verify current availability status as this part may be discontinued or subject to limited production runs. Confirm package integrity upon receipt, as moisture sensitivity level 3 requires proper handling. Ensure compatibility with existing 5V logic levels and check for any recent product change notices affecting pinout or electrical characteristics before finalizing procurement plans.

Selection Notes

Select this component when dual-port concurrency is required for 8K-bit memory configurations. The 25ns speed suits moderate-to-high frequency asynchronous interfaces. Verify that the 64-TQFP package fits the PCB footprint constraints. Consider power consumption profiles relative to system thermal limits and ensure voltage regulators maintain the 4.5V-5.5V range under all load conditions.

Part Context

This device belongs to the IDT7140SA/LA series of dual-port SRAMs. It shares architectural similarities with other members like the 7140SA25J8 but differs in packaging and specific electrical tolerances. The series is designed for applications requiring high-speed data exchange between two masters without bus contention.

Replacement Considerations

Check for direct substitutes such as the 7140LA25PFGI8 if lead-free compliance is mandatory. Verify pin-to-pin compatibility with legacy IDT variants. Ensure replacement parts meet the same 25ns access time and 5V operating voltage specifications.