7143SA55J

Overview

The Renesas Electronics Corporation 7143SA55J is a dual-port asynchronous static random-access memory (SRAM) integrated circuit. It provides a storage capacity of 32 kilobits, organized as 2K words by 16 bits. The device features parallel interface access 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-PLCC package measuring 24.21x24.21 mm. The component functions within an ambient temperature range of 0°C to 70°C.

Feature Summary

• Dual-port architecture enabling independent simultaneous access from two distinct processors or systems
• Asynchronous operation allowing flexible timing control without external clock synchronization
• CMOS technology implementation for low power consumption and high-speed data retention

Applications

• High-performance embedded systems requiring concurrent data access
• Industrial automation controllers needing fast local data buffering
• Telecommunications equipment utilizing parallel data processing interfaces

Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm package type and environmental rating. Confirm RoHS compliance status as historical records indicate non-compliance for certain variants. Check current lifecycle status, as this component may be discontinued or subject to last-time-buy restrictions. Ensure compatibility with existing PCB footprints for the 68-PLCC configuration before procurement.

Selection Notes

Select this component when dual-port functionality is required for separate read/write operations. Compare access times against system bus requirements to ensure the 55 ns speed meets latency constraints. Evaluate the 68-PLCC package dimensions against available board space. Consider alternative members of the 7143SA series if different capacities or pin counts are needed.

Part Context

This part belongs to the Renesas 7143SA family of dual-port SRAMs. It shares architectural similarities with other devices in the series, such as the 7143SA55J8 and 7143SA55PF8, which offer identical electrical specifications but differ in packaging formats like tape-and-reel or TQFP configurations.

Replacement Considerations

Official substitutes include the IDT7143SA55J and the 7143SA55J8. Verify pinout compatibility and package dimensions before substitution.