71342LA55PFI

Overview

The Renesas Electronics Corporation 71342LA55PFI is a dual-port static random-access memory integrated circuit with a total storage capacity of 32 kilobits. The memory organization is structured as 4K words by 8 bits, accessed via a parallel interface. This asynchronous device features a maximum access time of 55 nanoseconds and operates within a supply voltage range of 4.5 volts to 5.5 volts. It is housed in a 64-pin Thin Quad Flat Package (TQFP) measuring 14x14 millimeters, designed for surface-mount installation. The component supports an industrial operating temperature range from -40°C to +85°C.

Feature Summary

• Supports simultaneous independent access to the same memory location from both ports without conflict
• Includes fully asynchronous operation logic for flexible system integration
• Integrates on-chip hardware semaphore signaling to manage arbitration between accessing ports

Applications

• High-speed data buffering in telecommunications equipment
• FIFO buffer implementations in digital signal processing systems
• Cache memory modules in embedded computing architectures

Procurement Notes

Verify RoHS compliance status carefully, as this specific part number may not meet current environmental directives. Confirm package dimensions against PCB footprint requirements prior to procurement. Check for active obsolescence notices or product change notifications that might affect long-term availability or pin compatibility.

Selection Notes

Select this component when true dual-port functionality with hardware semaphore support is required for complex multi-master systems. Ensure the design accommodates the 64-pin TQFP surface-mount package constraints. Verify that the 55 ns access speed meets the timing requirements of the target application bus architecture.

Part Context

This device belongs to the 71342 series of high-speed dual-port SRAMs manufactured by Renesas Electronics. The series provides scalable memory densities and speeds for applications requiring concurrent data access. The 'LA' suffix typically denotes industrial temperature range capabilities, while '55' indicates the specific access speed variant within the product family.

Replacement Considerations

Public confirmed substitute part numbers include 71342LA25PFGI.