709279L12PF

Memory IC Overview

The 709279L12PF is a high-speed 32K x 16 bit synchronous Dual-Port RAM optimized for applications requiring unidirectional or bidirectional data flow in bursts. It features simultaneous access to the same memory location, flow-through or pipelined output modes selectable via the FT/PIPE pin, and counter enable/reset features. The device supports depth expansion through dual chip enables without additional logic, operates fully synchronously on both ports, and includes separate upper-byte and lower-byte controls for multiplexed bus compatibility. It utilizes a TTL-compatible single 5V power supply and is available in a 100-pin TQFP package with an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Dual-port architecture enabling simultaneous independent access to shared memory locations
• Configurable flow-through or pipelined output modes for flexible data handling
• Automatic low standby power mode controlled by chip enable signals
• Hardware support for semaphore signaling and port arbitration

Memory IC Applications

• High-speed burst data transfer systems
• Bidirectional communication interfaces
• Multiprocessor memory buffering
• Industrial control systems requiring dual-port synchronization

Memory IC Procurement Notes

Verify component authenticity and physical condition upon receipt, as this part is obsolete. Confirm that the specific suffix matches the required package and temperature grade. Check for moisture sensitivity level compliance if storage duration has exceeded limits. Ensure replacement components are evaluated for electrical equivalence before integration into existing designs.

Memory IC Selection Notes

Select this component when synchronous dual-port operation at 5V is required for burst data flows. Consider the 100-pin TQFP package constraints and industrial temperature range suitability. Evaluate the need for pipelined versus flow-through modes based on system timing requirements. Verify that the 32K x 16 organization meets the specific memory depth and width needs of the application design.

Memory IC Part Context

This device belongs to the Renesas 709279 series of synchronous dual-port SRAMs. It shares architectural similarities with other parts in the family but is distinguished by its specific 32K x 16 density and 12 ns access time. The part is designed to replace older asynchronous solutions where higher speed and synchronous interface benefits are necessary for modern embedded applications.

Memory IC Replacement Considerations

Public confirmed substitute part numbers include 709279L12PFGI.