7005S55J8

Overview

The Renesas Electronics Corporation 7005S55J8 is a high-speed, asynchronous dual-port static random-access memory (SRAM) device. It features a storage capacity of 256 kilobits organized as 32K by 8 bits. The component supports parallel interface communication with an access time of 55 nanoseconds. It operates on a single 5-volt power supply within a voltage range of 4.5 to 5.5 volts. The maximum supply current is 270 milliamperes. The device functions within an industrial temperature range from 0°C to +70°C and is housed in a 68-pin Plastic Leadless Chip Carrier (PLCC) package.

Feature Summary

• Asynchronous dual-port architecture enabling independent operation of two ports for simultaneous data access.

Applications

• High-speed data buffering in telecommunications systems
• Cache memory implementation in embedded processing units
• Data logging applications requiring rapid write cycles

Procurement Notes

Verify the specific suffix J8 against official Renesas documentation to confirm package dimensions and pinout compatibility. Confirm RoHS compliance status as sources indicate non-compliance. Check for obsolescence notices or lifecycle changes before finalizing procurement plans.

Selection Notes

Select this component when a 256Kb dual-port SRAM with 55ns speed is required. Ensure the design accommodates the 68-pin PLCC footprint. Verify that the system logic levels are compatible with the specified TTL-compatible I/O requirements.

Part Context

This part belongs to the Renesas 7005 series of dual-port RAMs. The series provides hardware support for semaphore signaling and interrupt flags between ports. It allows expansion of data bus widths to 16 bits or more in master/slave configurations.

Replacement Considerations

IDT7007S55J8 is a confirmed substitute part number for this component.