7025L20JI8

Memory IC Overview

The Renesas Electronics Corporation 7025L20JI8 is a high-speed, asynchronous dual-port static random-access memory (SRAM) with a total storage capacity of 128 kilobits. The memory array is organized as 8K words by 16 bits per word. This component features true dual-ported memory cells, allowing simultaneous independent access to the same memory location from two separate ports. It operates on a single 5V power supply within a voltage range of 4.5V to 5.5V and supports an industrial operating temperature range from -40°C to +85°C. The device utilizes a parallel interface and is housed in an 84-pin Plastic Leadless Chip Carrier (PLCC) package.

Memory IC Feature Summary

• True dual-ported architecture enabling simultaneous reads of the same memory location from both ports without conflict.
• Integrated hardware support for semaphore signaling and port arbitration logic to manage concurrent access.
• Separate upper-byte and lower-byte control lines designed for compatibility with multiplexed bus systems.
• Automatic low-power standby mode activated by Chip Enable signals to reduce active power consumption.

Memory IC Applications

• High-performance data buffering in telecommunications equipment requiring low-latency access.
• Master/Slave configurations for expanding data bus widths to 32 bits or more in embedded systems.
• Real-time signal processing applications utilizing interrupt flags and busy output states.
• Industrial control systems operating within extended temperature environments.

Memory IC Procurement Notes

Verify component authenticity through authorized distributors due to potential obsolescence status. Confirm RoHS compliance and lead finish specifications against current manufacturing notices. Check for product change notifications regarding package labeling or material composition updates prior to procurement.

Memory IC Selection Notes

Select this component when simultaneous independent access to shared memory is required. Ensure system design accommodates the 84-pin PLCC footprint and 5V logic levels. Verify that the 20ns access time meets the timing requirements of the target application interface.

Memory IC Part Context

This part belongs to the 7025 series of dual-port SRAMs manufactured by Renesas Electronics. The series offers various speed grades and package options, including PGA, TQFP, and PLCC formats. The 'L' suffix typically denotes industrial temperature range variants, while the 'J' indicates the PLCC package type.

Memory IC Replacement Considerations

Consult official manufacturer documentation for verified substitute part numbers. Cross-reference speed grades and package dimensions when evaluating alternatives. Ensure functional compatibility regarding semaphore logic and byte control signals during replacement planning.