71321SA35TF8

Memory IC Overview

The 71321SA35TF8 is a dual-port static random-access memory integrated circuit manufactured by Renesas Electronics Corporation. It features a storage capacity of 16 kilobits organized as 2K x 8 bits. The device supports parallel asynchronous interface with a maximum access time of 35 nanoseconds. It operates within a supply voltage range of 4.5V to 5.5V and functions at temperatures between 0°C and +70°C. The component is housed in a 64-pin Thin Quad Flat Package (TQFP) measuring 14.0mm x 14.0mm.

Memory IC Feature Summary

• True dual-ported architecture enabling simultaneous independent access to the same memory location from both ports.
• Integrated internal interrupt logic for direct port-to-port communication without external discrete components.
• On-chip port arbitration logic manages bus conflicts automatically during concurrent operations.
• Automatic power-down feature controlled by chip enable signals reduces standby power consumption.

Memory IC Applications

• Interprocessor communication links in multi-core or distributed processing systems
• Master dual-port RAM configuration in 16-bit or wider data bus expansion systems
• High-speed buffer memory for asynchronous data transfer between independent processors

Memory IC Procurement Notes

This component is officially listed as obsolete by the manufacturer. Verify availability through authorized distributors for remaining stock or qualified replacement parts. Confirm RoHS compliance status and moisture sensitivity level prior to procurement, as legacy inventory may vary in packaging specifications and environmental certification.

Memory IC Selection Notes

Select this part when designing systems requiring true dual-port memory with built-in interrupt signaling for processor synchronization. Ensure the design accommodates the 5V TTL-compatible logic levels and the specific 64-pin TQFP footprint. Consider the 35ns access speed against system timing requirements and verify thermal management capabilities for the specified commercial temperature range.

Memory IC Part Context

The 71321SA35TF8 belongs to the 71321SA series of high-speed dual-port SRAMs. This series is designed for applications demanding full-speed error-free operation without additional discrete logic. It serves as a master device that can expand data bus width when paired with compatible slave dual-port RAM devices in larger memory architectures.

Memory IC Replacement Considerations

IDT71321SA35TFG8 is documented as a similar alternative part number within the same product family.