7142LA100J

Overview

The Renesas Electronics Corporation 7142LA100J is a dual-port static random-access memory (SRAM) IC with an asynchronous interface. It offers a storage capacity of 16 kilobits, organized as 2K words by 8 bits. The device features a parallel data interface and operates within a supply voltage range of 4.5V to 5.5V. Access time is specified at 100 nanoseconds. It is housed in a 52-lead Plastic Leadless Chip Carrier (PLCC) package measuring 19.13mm x 19.13mm. The component supports surface mount installation and functions within a commercial temperature range of 0°C to 70°C.

Feature Summary

• Dual-port architecture enabling independent simultaneous access from two distinct processors or systems
• Asynchronous operation allowing flexible timing integration without external clock synchronization
• CMOS technology providing low power consumption relative to older bipolar SRAM implementations

Applications

• High-speed data buffering between microprocessors and peripheral devices
• Cache memory implementation in embedded control systems
• Data logging applications requiring rapid write and read cycles

Procurement Notes

Verify the specific suffix designation for the requested part number, as the provided model lacks the final character found in standard listings such as J8. Confirm RoHS compliance status, as this series often carries non-compliant markings. Check current lifecycle status, as many variants in this family are marked as obsolete or discontinued by the manufacturer. Ensure the package type matches the design footprint requirements.

Selection Notes

Select this component when independent dual-port access is required for shared memory resources. Compare access times against system bus speeds to ensure compatibility. Verify that the 52-PLCC package dimensions fit the available board space. Consider the operating temperature range suitability for the intended environment. Evaluate power dissipation limits based on the maximum supply current specifications.

Part Context

This component belongs to the IDT 7142LA series of dual-port SRAMs manufactured by Integrated Device Technology, now part of Renesas Electronics. The series is designed for high-performance applications requiring fast, independent access to common memory arrays. These devices are commonly used in telecommunications and industrial automation where data integrity and speed are critical.

Replacement Considerations

Check for direct pin-compatible replacements within the same 7142LA family, such as different speed grades or package variations. Verify if newer generations from Renesas offer equivalent functionality with updated compliance standards.