7142SA100J8

Overview

The Renesas Electronics Corporation 7142SA100J8 is a dual-port static random-access memory (SRAM) integrated circuit. It provides a storage capacity of 16 kilobits, organized as 2K words by 8 bits. The device features asynchronous operation with a maximum access time of 100 nanoseconds. It operates on a single 5.0V power supply within a voltage range of 4.5V to 5.5V. The component utilizes a parallel interface and is housed in a 52-pin Plastic Leadless Chip Carrier (PLCC) package. It supports standard TTL logic levels for input and output signals.

Feature Summary

• Dual-port architecture enabling independent simultaneous access from two separate processors or systems
• Asynchronous operation allowing flexible timing control without external clock synchronization
• Standard 5.0V CMOS technology compatible with TTL logic families

Applications

• High-speed data buffering between microprocessors and peripheral devices
• Cache memory implementation in embedded computing systems
• Data storage in telecommunications equipment requiring dual-processor access

Procurement Notes

Verify the specific suffix J8 against official manufacturer documentation to confirm package type and tape-and-reel configuration. Confirm RoHS compliance status as historical records indicate non-compliance. Check current lifecycle status as this component may be discontinued. Ensure lead-free alternatives are identified if required by regulatory standards. Validate moisture sensitivity level handling procedures during assembly.

Selection Notes

Select this component when dual-port functionality is required for shared memory access. Verify that the 100 ns access speed meets system timing requirements. Ensure the design accommodates the 52-pin PLCC footprint and surface-mount assembly process. Confirm compatibility with 5V logic levels and check thermal dissipation needs for the operating temperature range.

Part Context

This part belongs to the IDT/Renesas 7142 series of dual-port SRAMs. These components were originally developed by Integrated Device Technology before acquisition by Renesas. The series offers various access speeds and organization options for high-performance memory applications requiring concurrent read/write operations from multiple masters.

Replacement Considerations

Official substitutes include other variants within the 7142SA/LA series with different access times such as 7142SA55J8 or 7142SA20J8. Cross-reference pinouts and electrical characteristics carefully. Verify package compatibility and ensure functional equivalence for dual-port operations.