7008S25G

Memory IC Overview

The Renesas Electronics Corporation 7008S25G is a high-speed, asynchronous dual-port static random-access memory (SRAM) IC. It provides a total storage capacity of 512 kilobits, organized as 64K words by 8 bits. The device features parallel interface access with a maximum access time of 25 nanoseconds and a write cycle time of 25 nanoseconds. It operates within a supply voltage range of 4.5V to 5.5V. The component is housed in an 84-pin Plastic Leadless Chip Carrier (PLCC) package, measuring 29.31mm x 29.31mm, designed for surface-mount installation.

Memory IC Feature Summary

• Dual-port architecture enabling independent simultaneous access from two separate processors or systems
• Asynchronous operation allowing flexible timing integration without external clock synchronization
• High-speed data transfer capabilities suitable for demanding real-time processing applications

Memory IC Applications

• Network router buffer memory management
• Telecommunications equipment data buffering
• Industrial control system data logging

Memory IC Procurement Notes

Verify the specific suffix G against official Renesas documentation to confirm pinout compatibility and RoHS status. Confirm availability as this series may be subject to discontinuation notices. Ensure the 84-PLCC package matches the target PCB footprint dimensions precisely. Validate that the 4.5V to 5.5V operating voltage aligns with the system power rails before finalizing procurement.

Memory IC Selection Notes

Select this component when independent dual-port access is required for shared memory resources between two masters. The 25ns speed grade offers a balance between performance and power consumption compared to faster variants. The PLCC package is suitable for prototyping or specific industrial enclosures where through-hole-like handling is preferred despite surface mount technology. Verify temperature range requirements against the commercial specification.

Memory IC Part Context

The 7008S25G belongs to the IDT/Renesas 7008 family of dual-port SRAMs. This family is widely recognized in embedded systems for providing non-volatile-like ease of use with volatile speed. The 7008 series typically includes various speed grades and package options, such as the 7008S20 and 7008S35, catering to different latency requirements in networking and industrial automation sectors.

Memory IC Replacement Considerations

Official substitutes include the 7008S20G for faster 20ns access and the 7008S35G for slower 35ns access, provided timing margins allow. Other compatible packages in the same density include the 7008S25J8 in PLCC and 7008S25PF in TQFP. Verify electrical characteristics and pin compatibility before substitution.