71342SA25PFI

Overview

The Renesas Electronics Corporation 71342SA25PFI is a high-speed, 32Kb (4K x 8) dual-port static random-access memory (SRAM). It features fully asynchronous parallel operation with independent access from either port. The device operates on a single 5V TTL-compatible power supply within the 4.5V to 5.5V range. It provides a 25ns access time and write cycle time. The component is housed in a 64-pin Thin Quad Flat Package (TQFP) measuring 14x14mm. It supports an industrial operating temperature range of -40°C to +85°C.

Feature Summary

• True dual-ported memory cells allow simultaneous independent access to the same memory location from both ports without contention.
• Integrated hardware semaphore logic block enables automatic arbitration between ports for shared data access.
• Automatic power-down feature controlled by chip enable signals allows entry into very low standby power mode.

Applications

• Systems requiring simultaneous independent access to shared data buffers
• High-speed digital signal processing architectures
• Telecommunications equipment requiring low-latency data exchange

Procurement Notes

Verify RoHS compliance status as this specific part number may not meet current environmental directives. Confirm package dimensions against PCB footprint requirements for the 64-TQFP variant. Check for end-of-life notices or obsolescence warnings before finalizing design-in decisions.

Selection Notes

Select this component when true dual-port functionality with hardware arbitration is required. Ensure the system voltage aligns with the specified 5V tolerance. Consider the 25ns speed grade relative to system clock requirements. Verify thermal management capabilities for the industrial temperature range if operating near limits.

Part Context

This device belongs to the 71342 family of dual-port SRAMs. It shares architectural similarities with other members but differs in speed grades and packaging options. The 'SA' suffix typically denotes standard commercial/industrial variants compared to military-grade counterparts.

Replacement Considerations

Public confirmed substitute: 71342LA25PFGI.