7006S55JI8

Overview

The Renesas Electronics Corporation 7006S55JI8 is a dual-port static random-access memory (SRAM) integrated circuit. It provides a storage capacity of 128 kilobits, organized as 16K words by 8 bits. The device operates asynchronously with a maximum access time of 55 nanoseconds. It supports a supply voltage range of 4.5 volts to 5.5 volts and functions within an ambient temperature range of 0°C to 70°C. The component is housed in a 68-pin Plastic Leadless Chip Carrier (PLCC) package with J-leads, designed for surface-mount installation.

Feature Summary

• Dual-port architecture enabling independent simultaneous access from two distinct processors or systems
• Asynchronous parallel interface for straightforward integration into existing digital logic designs
• Volatile memory technology retaining data only while power is applied

Applications

• Data buffering between asynchronous system components
• Cache memory implementation in embedded processing systems
• Temporary storage in telecommunications equipment

Procurement Notes

Verify the specific suffix 'I8' against official Renesas documentation to confirm it denotes the standard commercial temperature grade and tape-and-reel packaging variant. Ensure compatibility with the required 68-PLCC footprint on the target printed circuit board. Confirm that the 55 ns speed grade meets the timing requirements of the host system bus.

Selection Notes

Select this component when a design requires independent read/write ports for concurrent data handling without external arbitration logic. The 128Kb density suits applications needing moderate buffer sizes. Verify that the 68-PLCC package is supported by the assembly process and that the 55 ns latency aligns with the processor clock cycles.

Part Context

This part belongs to the Renesas 7006 series of dual-port SRAMs. The series offers various speed grades and organization options. The 7006S55 variant specifically targets general-purpose high-speed memory needs. The manufacturer utilizes this numbering convention to distinguish between different access times and package types within the same functional family.

Replacement Considerations

Cross-reference with IDT7006S55J for pin-compatible alternatives. Verify electrical specifications and package dimensions before substitution.