7006S55J8

Overview

The Renesas 7006S55J8 is a dual-port asynchronous static random-access memory (SRAM) integrated circuit. It provides a storage capacity of 128 kilobits, organized as 16K words by 8 bits. The device features parallel interface access with a maximum access time of 55 nanoseconds. It operates within a supply voltage range of 4.5V to 5.5V and supports surface-mount installation in a 68-pin Plastic Leadless Chip Carrier (PLCC) package measuring 24.21mm by 24.21mm. The component functions reliably across an ambient temperature range of 0°C to 70°C.

Feature Summary

• Dual-port architecture enabling independent simultaneous access from two distinct controllers
• Asynchronous operation eliminating the need for external clock synchronization signals
• Parallel data interface supporting standard bus protocols for direct system integration

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 J8 against official Renesas documentation to confirm package type and lead finish specifications. Confirm RoHS compliance status as historical records indicate non-compliance for certain variants. Check current production status as this series may be subject to discontinuation notices. Validate pin compatibility if replacing existing designs to ensure correct electrical interfacing.

Selection Notes

Select this component when dual-controller access to shared memory is required without arbitration overhead. Ensure the design accommodates the 68-PLCC footprint and thermal requirements for surface-mount assembly. Verify that the 55ns access speed meets the timing constraints of the host processors. Confirm power supply stability within the specified voltage range to maintain data integrity during operation.

Part Context

This part belongs to the Renesas 7006S family of dual-port SRAMs. The family offers various access speeds and organization configurations. These components are designed for applications requiring high-bandwidth memory sharing. The 7006S55 variant specifically targets mid-range performance needs in industrial and communication equipment.

Replacement Considerations

Check for IDT7006S55J8 as a potential equivalent under previous branding. Verify pinout and electrical parameters match exactly before substitution. Consider newer generation parts if long-term availability is critical.