709079S12PFI8

Memory IC Overview

The 709079S12PFI8 is a 256Kbit (32K x 8) synchronous dual-port static RAM manufactured by Renesas Electronics. It operates on a single 5V power supply with an access time of 12ns and utilizes a 100-pin TQFP package. The device supports industrial temperature ranges from -40°C to +85°C and features pipelined or flow-through output modes.

Memory IC Feature Summary

• True dual-ported memory cells allow simultaneous access of the same memory location from both ports.
• Full synchronous operation on both ports with registered address, data, and control inputs for minimal setup times.
• Automatic power-down feature controlled by chip enables to reduce standby power consumption.
• Dual chip enables facilitate depth expansion without requiring additional external logic.

Memory IC Applications

• Applications requiring unidirectional or bidirectional data flow in bursts
• Systems utilizing MASTER/SLAVE Dual-Port SRAM configurations
• Depth expansion memory architectures

Memory IC Procurement Notes

Verify component authenticity through authorized channels as this part may be subject to obsolescence notices. Confirm that the specific ordering suffix matches the required package type and temperature grade. Ensure compliance with RoHS directives if applicable to the target market. Check for any product change notifications regarding pinout or electrical characteristics before finalizing procurement plans.

Memory IC Selection Notes

Select this component when high-speed synchronous dual-port access is required for burst data transfers. The 12ns speed grade offers a balance between performance and power consumption. Consider the 100-pin TQFP package constraints for PCB layout. Verify that the system design can accommodate the necessary clocking and control signals for full synchronous operation.

Memory IC Part Context

This device belongs to the IDT709089/79 family of high-speed synchronous dual-port static RAMs. It is designed for applications needing fast, simultaneous read/write capabilities across two independent ports. The technology leverages CMOS high-performance fabrication to achieve low power operation while maintaining high-speed data throughput.

Memory IC Replacement Considerations

Check for direct substitutes within the 709079 series such as the 709079L9PFI for lower power variants. Verify compatibility with existing board layouts due to potential package differences. Review datasheets for updated timing parameters and voltage specifications to ensure seamless integration into current designs.

Memory IC FAQ

What is the maximum operating voltage for the 709079S12PFI8?

The recommended operating supply voltage range is 4.5V to 5.5V, centered around a nominal 5V.

How does the FT/PIPE pin affect operation?

The FT/PIPE pin selects between Flow-Through and Pipelined output modes for either port, allowing flexibility in data latency requirements.

Can the address counter be used for sequential access?

Yes, the device includes counter enable and reset features that allow the internal address counter to advance automatically during read or write cycles.