7133SA55J8

Overview

The 7133SA55J8 is a dual-port static random-access memory (SRAM) integrated circuit manufactured by Renesas Electronics Corporation. It features a storage capacity of 32 kilobits organized as 2K words by 16 bits. The device utilizes an asynchronous parallel interface with a maximum access time of 55 nanoseconds. It operates within a supply voltage range of 4.5V to 5.5V and supports surface-mount installation in a 68-pin PLCC package measuring 24.21mm by 24.21mm.

Feature Summary

• Dual-port architecture enabling independent simultaneous read/write operations on both ports
• Asynchronous parallel interface for flexible system integration
• CMOS technology providing high-speed data access capabilities

Applications

• High-performance embedded systems requiring concurrent data access
• Industrial control units needing reliable volatile memory storage
• Telecommunications equipment utilizing parallel bus architectures

Procurement Notes

This component is officially discontinued and no longer manufactured by Renesas Electronics. Verification of authenticity is critical when sourcing from secondary markets, as availability is limited to existing stock or surplus channels. Confirm the specific suffix J8 corresponds to the 68-PLCC package variant and ensure compliance with legacy RoHS requirements prior to procurement.

Selection Notes

Select this part only if the design requires a 32Kb dual-port SRAM with 55ns access speed in a 68-PLCC form factor. Verify that the system power supply strictly maintains the 4.5V to 5.5V range. Consider the discontinuation status and lead time implications for long-term production viability compared to modern alternatives.

Part Context

The 7133SA series represents a family of high-speed CMOS dual-port RAMs designed for applications demanding independent port operation. The 7133SA55J8 specifically denotes the 55ns speed grade within the SA series, packaged in a plastic leaded chip carrier. This component belongs to legacy memory solutions previously widely used in networking and industrial automation hardware.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation due to the product's discontinued status. Designers should consult Renesas technical resources for current portfolio equivalents or evaluate third-party compatible devices with matching pinouts and electrical specifications.