7005S25J8

Overview

The Renesas Electronics Corporation 7005S25J8 is a high-speed, asynchronous dual-port static random-access memory (SRAM) integrated circuit. It provides a storage capacity of 64 kilobits organized as 8K words by 8 bits. The device features parallel interface access with a maximum access time and write cycle time of 25 nanoseconds. It operates on a single 5-volt power supply within a voltage range of 4.5V to 5.5V. The component is housed in a 68-pin Plastic Leadless Chip Carrier (PLCC) package measuring 24.21mm by 24.21mm. It supports surface mount installation and functions within an ambient temperature range of 0°C to 70°C.

Feature Summary

• Supports simultaneous independent reads and writes from either port without bus contention
• Includes on-chip hardware logic for semaphore signaling and port arbitration
• Provides automatic low-power standby mode controlled by chip enable signals
• Features TTL-compatible inputs and outputs for direct interfacing

Applications

• Stand-alone dual-port memory systems
• Master/slave dual-port configurations for expanded data buses
• Battery-backed memory applications requiring data retention
• Industrial control systems requiring asynchronous parallel communication

Procurement Notes

Verify the specific suffix J8 confirms the 68-PLCC package and commercial temperature grade. Confirm RoHS compliance status as historical documentation may indicate non-compliance. Check current lifecycle status as this part number is listed as discontinued. Ensure sourcing channels provide valid traceability for legacy components.

Selection Notes

Select this component when 64Kb dual-port SRAM with 25ns speed is required in a 68-pin PLCC package. Compare against other 7005 variants if industrial temperature ranges or different package types like TQFP are needed. Verify voltage compatibility with existing 5V system designs. Consider end-of-life implications for long-term production planning.

Part Context

This device belongs to the Renesas 7005 family of high-speed dual-port RAMs. The family offers various access speeds and packaging options including PGA and TQFP. The 7005 series is designed for applications requiring true dual-porting capabilities with hardware support for synchronization between two independent processors or controllers accessing the same memory space simultaneously.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.