7140LA100J8

Overview

The 7140LA100J8 is a dual-port static random-access memory (SRAM) manufactured by Renesas Electronics. It features an organization of 1K x 8 bits, providing a total storage capacity of 8 kilobits. The device supports asynchronous parallel interface operations with a maximum access time of 100 nanoseconds. It operates within a supply voltage range of 4.5 to 5.5 volts and functions reliably in temperatures from 0°C to +70°C. The component is housed in a 52-pin Plastic Leadless Chip Carrier (PLCC) package.

Feature Summary

• Dual-port architecture enabling independent simultaneous access by two processors
• Asynchronous operation for flexible system integration without clock synchronization
• CMOS technology ensuring low power consumption during read and write cycles

Applications

• High-speed data buffering in telecommunications equipment
• Cache memory implementation in industrial control systems
• Real-time data logging in embedded processing applications

Procurement Notes

Verify the specific suffix J8 against official Renesas documentation to confirm the tape-and-reel packaging configuration. Confirm RoHS compliance status as lead-free variants may differ. Check current production lifecycle status, as this component may be discontinued or subject to limited availability through authorized distributors.

Selection Notes

Select this component when a small-capacity, high-speed dual-port memory solution is required for parallel bus architectures. Ensure the design accommodates the 52-pin PLCC footprint and 5V logic levels. Consider thermal management within the commercial temperature range if operating near upper limits.

Part Context

This part belongs to the IDT/Renesas 7140LA series of dual-port SRAMs. These devices are designed for applications requiring fast, independent access to shared memory resources. The 7140LA variant specifically denotes the 1Kx8 density option within the broader family that includes other densities and speeds.

Replacement Considerations

Consult official cross-reference guides for direct substitutes such as the IDT7140LA100J8. Verify pin compatibility and electrical specifications before replacing.