7026S20J8

Memory IC Overview

The Renesas Electronics Corporation 7026S20J8 is a high-speed, asynchronous dual-port static random-access memory (SRAM) device. It features a storage capacity of 256 kilobits organized as 16K words by 16 bits. The component supports parallel interface communication with an access time of 20 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 Plastic Leadless Chip Carrier (PLCC) package measuring 29.31mm x 29.31mm. It is designed for commercial temperature ranges from 0°C to 70°C and includes automatic power-down capabilities controlled by chip enable signals.

Memory IC Feature Summary

• True dual-ported architecture allowing simultaneous independent access to the same memory location from two separate ports.
• On-chip hardware support for semaphore signaling and port arbitration logic to manage data conflicts between ports.
• Automatic low standby power mode activated when chip enable signals are deasserted.
• TTL-compatible inputs and outputs ensuring compatibility with standard logic families.

Memory IC Applications

• High-performance computing systems requiring concurrent data access.
• Multiprocessor architectures utilizing master/slave dual-port configurations.
• Industrial control systems needing reliable volatile memory buffering.
• Telecommunications equipment requiring fast data throughput.

Memory IC Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to potential obsolescence. Confirm RoHS compliance status as older variants may not meet current environmental regulations. Validate package integrity upon receipt, as PLCC components require careful handling to prevent lead damage during installation. Ensure design-in documentation matches the specific suffix J8 for packaging type verification.

Memory IC Selection Notes

Select this component when simultaneous bidirectional data access is required without external arbitration circuitry. Consider the 20ns access speed for applications demanding rapid memory retrieval. Evaluate the 84-PLCC footprint against available PCB real estate and mounting constraints. Compare power consumption metrics against newer SRAM alternatives if low-power operation is critical for the system design.

Memory IC Part Context

The 7026S series belongs to Renesas' legacy line of high-speed dual-port SRAMs, originally developed under IDT branding before acquisition. These devices were widely used in networking and industrial automation before being superseded by faster, denser technologies. The 7026S20J8 specifically represents the commercial grade variant with 20ns performance, distinct from the slower 55ns models or industrial temperature rated versions.

Memory IC Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Users should consult official Renesas discontinuation notices for recommended upgrades or equivalent products within the current portfolio.