71321LA25TF8

Memory IC Overview

The 71321LA25TF8 is a high-speed, asynchronous dual-port static random-access memory (SRAM) manufactured by Renesas Electronics Corporation. It features a storage capacity of 16 kilobits organized as 2K x 8 bits. The device supports parallel interface operations with an access time of 25 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 64-pin Thin Quad Flat Package (TQFP) suitable for surface mount technology. It includes internal interrupt logic and port arbitration for interprocessor communication.

Memory IC Feature Summary

• True dual-ported memory architecture enabling simultaneous independent access to the same memory location from both ports without conflict.
• Integrated internal interrupt flags facilitate direct port-to-port communication and status signaling between connected processors.
• On-chip port arbitration logic manages bus access automatically, allowing expansion to 16-bit or wider data buses when paired with compatible slave devices.

Memory IC Applications

• Interprocessor communication links in distributed computing systems
• Master dual-port RAM configuration in multi-processor architectures
• High-speed data buffering between asynchronous system components

Memory IC Procurement Notes

Verify component authenticity through authorized distributors due to potential obsolescence. Confirm package integrity and moisture sensitivity level handling requirements before assembly. Check for specific manufacturing date codes if long-term reliability is critical. Ensure compatibility with existing board design regarding pinout and electrical specifications.

Memory IC Selection Notes

Select this component for applications requiring true dual-port functionality with integrated interrupt capabilities. Suitable for systems needing 25ns access speed within a 5V logic environment. Consider thermal performance and package constraints associated with the 64-pin TQFP form factor during PCB layout planning.

Memory IC Part Context

This part belongs to the 71321 series of dual-port SRAMs designed for high-performance embedded applications. The 'LA' suffix typically denotes industrial temperature range availability, while 'TF8' indicates the specific tape and reel packaging format. It serves as a master device capable of expanding data width when used alongside slave counterparts.

Memory IC Replacement Considerations

Public confirmed substitute: 71321LA20TFG8.