7025S35FB

Memory IC Overview

The Renesas Electronics Corporation 7025S35FB is a high-speed, asynchronous dual-port static random-access memory (SRAM) device. It provides a storage capacity of 128 kilobits, organized as 8K words by 16 bits. The component features parallel interface access with a maximum access time of 35 nanoseconds. It operates on a single 5V power supply within a voltage range of 4.5V to 5.5V. The device is housed in an 84-pin Flatpack package designed for surface-mount installation. It supports simultaneous independent reads and writes from either port without conflict.

Memory IC Feature Summary

• True dual-ported architecture enabling simultaneous independent read and write operations from both ports without bus contention or arbitration delays.
• Integrated hardware semaphore signaling and interrupt flag logic to facilitate efficient data synchronization and status communication between two system processors.
• Automatic power-down mode controlled by chip enable signals, allowing the internal circuitry to enter a low standby power state when not actively accessed.
• TTL-compatible inputs and outputs supporting standard 5V logic levels, ensuring compatibility with a wide range of microprocessor and digital control systems.

Memory IC Applications

• High-performance telecommunications equipment requiring fast data buffering and protocol processing
• Industrial automation controllers needing reliable real-time data exchange between multiple processing units
• Network infrastructure devices utilizing dual-port memory for packet switching and traffic management
• Embedded systems requiring isolated master-slave memory configurations for complex data handling

Memory IC Procurement Notes

Verify the specific suffix 'FB' against official Renesas documentation to confirm the 84-pin flatpack package variant. Confirm RoHS compliance status as older variants may not meet current environmental standards. Check for end-of-life notifications or discontinuance notices prior to procurement. Ensure the supplier provides traceability documentation for military or industrial grade requirements if applicable.

Memory IC Selection Notes

Select this component when a system requires true simultaneous access to shared memory by two independent processors without software overhead. Choose the 35ns speed grade for applications balancing cost and performance. Verify that the 84-pin flatpack footprint fits the target PCB layout constraints. Consider the 5V operating voltage requirement for compatibility with existing system power rails and logic levels.

Memory IC Part Context

The 7025S35FB belongs to the Renesas 7025 series of dual-port SRAMs, which are designed for high-speed data sharing in multiprocessor environments. This series offers various speed grades and package options to suit different application needs. The 7025 family is widely used in networking, industrial, and communications markets where deterministic data access is critical.

Memory IC Replacement Considerations

Consult official Renesas documentation for verified cross-reference part numbers. Ensure any substitute maintains the 8Kx16 organization, 35ns access time, and 84-pin flatpack package. Verify pin-to-pin compatibility and electrical specifications before integration.