7006S55JI

Overview

The Renesas 7006S55JI is a dual-port static random-access memory (SRAM) integrated circuit with a storage capacity of 128Kb, organized as 16K words by 8 bits. It features asynchronous parallel interface operation with a maximum access time of 55 ns. The device operates on a single 5V power supply within the voltage range of 4.5V to 5.5V. It is housed in a 68-lead Plastic Leadless Chip Carrier (PLCC) package with dimensions of 24.21mm x 24.21mm. The component supports surface mount installation and functions within an ambient temperature range of -40°C to +85°C.

Feature Summary

• Dual-port architecture enabling independent simultaneous read/write operations at two distinct ports
• Asynchronous parallel interface for straightforward integration into standard digital logic systems
• Single 5V power supply operation compatible with standard CMOS logic levels
• Industrial temperature rating supporting reliable performance in demanding environmental conditions

Applications

• High-speed data buffering in telecommunications equipment
• Cache memory implementation in embedded processing systems
• Data storage in industrial control and automation hardware
• Test and measurement instrument internal memory modules

Procurement Notes

Verify the specific suffix 'JI' against official Renesas documentation to confirm the exact package variant and temperature grade. Confirm RoHS compliance status and moisture sensitivity level requirements prior to procurement. Check for end-of-life notices or discontinuance notifications from the manufacturer. Ensure compatibility with existing PCB footprint designs for the 68-PLCC package. Validate supply chain authenticity through authorized distribution channels.

Selection Notes

Select this component when dual-port functionality is required for concurrent data access without bus contention. Choose based on the 55 ns speed requirement matching system timing constraints. Consider the 68-PLCC package for suitable board space and mounting preferences. Evaluate the -40°C to +85°C operating range against environmental specifications. Compare alternative densities if higher storage capacity is needed within the same family.

Part Context

This part belongs to the Renesas 7006 series of dual-port SRAMs, originally developed under the IDT brand before acquisition. The series provides non-volatile-like speed with volatile storage characteristics. These devices are designed for applications requiring high bandwidth and low latency data handling between different processor domains or peripheral interfaces.

Replacement Considerations

Official substitutes include parts with identical pinouts and electrical characteristics such as the 7006S55JG8 or 7006L20 variants, subject to package and speed verification. Cross-reference with IDT-branded equivalents like the IDT7006S55JI for direct replacement. Verify that any substitute maintains the 16Kx8 organization and 55 ns access time.