7009L20PFGI

Memory IC Overview

The 7009L20PFGI is a high-speed 128K x 8 Dual-Port Static RAM manufactured by Renesas Electronics. It provides a total storage capacity of 1 Mbit with an access time of 20 ns. The device operates on a single 5V power supply within a range of 4.5 V to 5.5 V, featuring a maximum power current of 320 mA. It utilizes a parallel interface and is housed in a 100-pin TQFP package suitable for surface mount technology. The component supports asynchronous operation from either port and functions within an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Features full on-chip hardware support for semaphore signaling between ports
• Includes automatic power down feature controlled by chip enable for low standby power
• Supports battery backup operation with data retention at 2V
• Provides TTL-compatible logic levels

Memory IC Applications

• Stand-alone 1M-bit Dual-Port RAM systems
• Master/Slave Dual-Port RAM configurations for 16-bit or wider word systems
• Industrial control applications requiring dual-port memory arbitration

Memory IC Procurement Notes

Verify the specific suffix 'I' indicates industrial temperature grade compliance. Confirm RoHS status through official documentation as details vary. Check for End-of-Life notices as this series may be obsolete. Ensure voltage requirements match the 5V specification strictly. Validate package integrity upon receipt due to moisture sensitivity classification.

Memory IC Selection Notes

Select this component when dual independent port access is required for shared memory resources. The 20 ns speed suits moderate-to-high frequency asynchronous interfaces. Verify compatibility with 5V logic families due to TTL compatibility. Consider the 100-pin footprint constraints during PCB layout. Evaluate power consumption against the 320 mA maximum rating.

Memory IC Part Context

This part belongs to the 7009 series of dual-port SRAMs designed for flexible memory sharing. It serves as a bridge between single-port and complex multi-port architectures. The device simplifies system design by handling port arbitration internally. It replaces older discrete logic solutions for bus arbitration.

Memory IC Replacement Considerations

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