71342LA25PFGI8

Overview

The 71342LA25PFGI8 is a dual-port static random-access memory (SRAM) integrated circuit manufactured by Renesas Electronics. It provides a storage capacity of 32 kbit, organized as 4K words by 8 bits. The device features an asynchronous parallel interface with a maximum access time of 25 ns. It operates within a supply voltage range of 4.5 V to 5.5 V and supports surface-mount installation in a 64-pin TQFP package.

Feature Summary

• Dual-port architecture enabling independent simultaneous access from two separate systems
• Asynchronous operation without requiring a system clock signal
• Parallel data interface for direct connection to microprocessors

Applications

• Data buffering between high-speed processors and slower peripherals
• Cache memory implementation in embedded control systems
• FIFO buffer applications in communication interfaces

Procurement Notes

Verify the component status before procurement as this part number may be discontinued or subject to production changes. Confirm that the 64-TQFP package dimensions match the target PCB footprint. Ensure the 4.5V to 5.5V operating voltage aligns with the system power rails. Check for RoHS compliance requirements relative to the specific manufacturing batch date code.

Selection Notes

Select this component when a non-volatile-free, low-latency memory solution is required for bidirectional data exchange. The dual-port capability allows concurrent read/write operations from different masters. Consider the 25 ns access speed against system timing constraints. Evaluate the 64-pin TQFP package for thermal dissipation and assembly compatibility compared to alternative packages like PLCC.

Part Context

This device belongs to the Renesas 71342 series of dual-port SRAMs. It shares architectural similarities with other members such as the 71342SA and 71342LA variants, differing primarily in speed grades and temperature ranges. The 'LA' designation typically indicates commercial temperature range specifications, while 'PFGI8' denotes the specific lead-free tape-and-reel packaging configuration.

Replacement Considerations

The 71342LA25PFGI8 serves as a direct upgrade replacement for the discontinued 71342SA25PFI8. Both parts share identical pinouts, memory organization, and electrical characteristics. Verify that the replacement package matches the original design requirements.