71342SA45J8

Overview

The 71342SA45J8 is a dual-port static random-access memory integrated circuit manufactured by Renesas Electronics Corporation. It provides a total storage capacity of 32 kilobits, organized as 4096 words by 8 bits. The device operates with an access time and write cycle time of 45 nanoseconds. It utilizes a parallel interface for data transfer and functions asynchronously. The component supports a supply voltage range from 4.5 volts to 5.5 volts. It is designed for surface-mount installation within the commercial temperature range of 0 degrees Celsius to 70 degrees Celsius.

Feature Summary

• Dual-port architecture enabling independent simultaneous access by two processors
• Asynchronous operation without requiring a system clock signal
• Parallel interface supporting standard bus connections

Applications

• Embedded systems requiring shared memory resources
• Industrial control equipment with multi-processor architectures
• Telecommunications infrastructure utilizing asynchronous communication protocols

Procurement Notes

Verify component authenticity through authorized channels due to obsolete status. Confirm package integrity upon receipt as moisture sensitivity level indicates potential degradation if packaging is compromised. Check datasheet revisions for any pinout or electrical specification updates prior to integration into new designs.

Selection Notes

Evaluate design requirements against the 45-nanosecond access speed to ensure timing compatibility. Verify that the 5-volt logic levels match the target system voltage domain. Consider the PLCC52 footprint constraints during printed circuit board layout planning. Assess thermal management needs based on the specified operating temperature limits.

Part Context

This component belongs to the 71342 series of dual-port SRAMs produced by Renesas Electronics. The series offers various speed grades and package options to accommodate different performance and form factor requirements in embedded applications. The specific suffix denotes the 45-nanosecond speed grade and the leaded plastic quad flat package configuration.

Replacement Considerations

Public confirmed substitute part numbers are not available.