7134SA55JI

Overview

The Renesas Electronics Corporation 7134SA55JI is a dual-port static random-access memory (SRAM) integrated circuit. It features a storage capacity of 32 kilobits organized as 4K words by 8 bits. The device utilizes an asynchronous parallel interface with a maximum access time and write cycle time of 55 nanoseconds. It operates within a supply voltage range of 4.5 volts to 5.5 volts and supports surface-mount installation in a 52-lead Plastic Leadless Chip Carrier package.

Feature Summary

• Dual-port architecture enabling independent simultaneous access from two separate processors or systems
• Asynchronous operation allowing flexible timing integration without requiring a synchronized clock signal
• CMOS technology providing low power consumption characteristics relative to older bipolar implementations

Applications

• High-speed data buffering between microprocessors and peripheral devices
• Cache memory implementation in embedded control systems
• Data storage for real-time processing applications requiring concurrent read/write operations

Procurement Notes

Verify component authenticity through authorized distributors due to the discontinued status of this part number. Confirm that the specific suffix corresponds to the commercial temperature range and PLCC-52 package variant. Check for RoHS compliance variations across manufacturing lots, as earlier production runs may not meet current environmental directives. Ensure proper handling procedures are followed given the end-of-life classification.

Selection Notes

Select this component when a design requires independent dual-port access for concurrent system operations. The 55-nanosecond speed class suits moderate-frequency digital logic applications. Consider the 52-pin PLCC footprint compatibility during PCB layout planning. Evaluate alternative packages if surface-mount density requirements exceed the constraints of the leadless chip carrier form factor.

Part Context

This device belongs to the 7134SA family of dual-port SRAMs manufactured by Renesas Electronics. The family offers various speed grades and packaging options to accommodate different system timing and physical layout requirements. The 7134SA series is designed for applications demanding reliable, high-speed data storage with independent port functionality.

Replacement Considerations

Direct replacements include the IDT7134SA55JG and 7134SA55J variants. Verify pinout compatibility and electrical specifications before substitution. Note that some alternatives may differ in moisture sensitivity levels or operating temperature ranges.