7133LA45JI

Overview

The 7133LA45JI is a dual-port, asynchronous static random-access memory (SRAM) integrated circuit manufactured by Renesas Electronics Corporation. It provides a total storage capacity of 32 kilobits, organized as 2K words by 16 bits. The device features a parallel interface with a maximum access time of 45 nanoseconds. It operates within a supply voltage range of 4.5V to 5.5V and supports an industrial temperature range from -55°C to +125°C. The component is housed in a 68-lead Plastic Leadless Chip Carrier (PLCC) package, measuring 24.21mm x 24.21mm.

Feature Summary

• Supports simultaneous independent read/write operations on two separate ports for high-throughput data handling.
• Operates reliably across the full industrial temperature range of -55°C to +125°C.
• Utilizes a standard parallel interface architecture compatible with various microprocessor systems.

Applications

• High-speed data buffering in telecommunications equipment
• Cache memory implementation in industrial control systems
• Data storage in embedded network devices

Procurement Notes

Verify the specific suffix 'JI' against official Renesas documentation to confirm the exact package dimensions and lead finish specifications. Confirm that the industrial temperature grade (-55°C to +125°C) meets your system requirements, as this differs from commercial variants. Check current availability status, as older SRAM components may have limited stock or end-of-life implications.

Selection Notes

Select this component when dual-port functionality is required for concurrent master-slave or peer-to-peer memory access. Ensure the 45ns speed class aligns with your processor's bus timing constraints. Verify that the 68-PLCC footprint fits your PCB layout, as surface-mount PLCC packages require specific pad designs distinct from QFP or BGA options.

Part Context

This part belongs to the Renesas 7133 series of dual-port SRAMs, which are designed for applications requiring fast, independent access to shared memory. The 'LA' designation typically indicates the industrial temperature range variant, while 'SA' denotes commercial grades. These components serve as critical synchronization points in complex digital systems.

Replacement Considerations

Direct pin-compatible replacements include other 7133 series variants with similar access times and package types, such as the 7133SA45JI, provided the temperature range difference is acceptable. Always verify electrical characteristics and pinout compatibility before substitution.