7143SA55GB

Overview

The Renesas Electronics Corporation 7143SA55GB is a high-speed, asynchronous dual-port static random-access memory (SRAM) integrated circuit. It features a storage capacity of 32 kilobits organized as 2K words by 16 bits. The device supports parallel interface operation with a maximum access time of 55 nanoseconds. It operates on a single 5V power supply within a voltage range of 4.5V to 5.5V. The component is housed in a 68-pin plastic ball grid array (BGA) package and is designed for industrial temperature ranges.

Feature Summary

• True dual-ported memory architecture enabling simultaneous independent access to the same memory location from both ports without conflict.
• On-chip port arbitration logic manages bus contention automatically, eliminating the need for external discrete logic in master/slave configurations.
• Supports versatile write control allowing separate byte-level management for each port to easily expand data bus widths beyond 16 bits.

Applications

• High-performance digital signal processing systems requiring concurrent data access
• Telecommunications equipment utilizing master/slave dual-port RAM topologies
• Industrial automation controllers needing fast, non-blocking memory sharing between processors

Procurement Notes

Verify the specific suffix GB against official Renesas documentation to confirm the exact package type and pinout configuration. Confirm RoHS compliance status and lead-free material declarations prior to procurement. Check for active discontinuance notices or end-of-life announcements as this series may have limited availability. Ensure compatibility with existing board designs regarding thermal dissipation and footprint dimensions.

Selection Notes

Select this component when simultaneous read/write operations from two independent masters are required without external arbitration hardware. The 55ns speed class offers a balance between performance and power consumption for general-purpose dual-port applications. Consider the 68-pin BGA form factor for space-constrained surface-mount designs requiring robust mechanical stability.

Part Context

The 7143SA series represents a family of high-speed CMOS dual-port SRAMs manufactured by Renesas Electronics. These devices utilize advanced semiconductor processes to deliver fast access times while maintaining low power consumption. The series is widely recognized in embedded systems for its reliability and ease of integration into complex multi-processor architectures.

Replacement Considerations

Consult official Renesas substitution guides for verified equivalents. Cross-reference with IDT-branded parts if historical compatibility is required, ensuring electrical and pinout alignment.