7140LA100PF8

Overview

The Renesas Electronics Corporation 7140LA100PF8 is a dual-port static random-access memory (SRAM) integrated circuit. It provides an 8-kilobit storage capacity organized as 1K words by 8 bits. The device features parallel interface access with a maximum access time of 100 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). The component functions asynchronously and is designed for industrial temperature ranges from 0°C to 70°C.

Feature Summary

• Dual-port architecture enabling independent simultaneous read/write operations on two separate ports.

Applications

• High-speed data buffering in communication systems
• Cache memory implementation in embedded processors
• Real-time data logging in industrial control units

Procurement Notes

Verify the specific suffix PF8 against official datasheets to confirm package type and pinout compatibility. Confirm RoHS compliance status as older variants may not meet current environmental standards. Check for obsolescence notices or lifecycle management documents from Renesas, as this part number may be discontinued or subject to last-time buy restrictions. Ensure design-in approval aligns with current supply chain availability constraints.

Selection Notes

Select this component when asynchronous dual-port SRAM functionality is required for applications needing independent port access. Compare access times and power consumption against single-port alternatives if cost is a primary driver. Verify that the 64-TQFP package fits the available PCB real estate and thermal requirements. Ensure the 4.5V to 5.5V operating voltage matches the system power rails without requiring level shifting.

Part Context

This component belongs to the 7140SA/LA series of high-speed dual-port SRAMs manufactured by Renesas Electronics. The series is characterized by CMOS technology and offers various speed grades and packaging options. These devices are typically used in legacy or specialized industrial designs where dual-port memory isolation is critical for system stability and performance.

Replacement Considerations

Consult official Renesas documentation for qualified replacements. Potential substitutes include other members of the 7140SA/LA family with compatible pinouts and electrical characteristics. Verify functional equivalence before substitution.