7133LA35JI

Overview

The Renesas Electronics Corporation 7133LA35JI is an asynchronous dual-port static random-access memory (SRAM) integrated circuit. It provides a storage capacity of 32 kbit, organized as 2k x 8 bits. The device features a parallel interface with a maximum access time of 35 ns. It operates within a supply voltage range of 4.5 V to 5.5 V and supports a maximum power consumption of 295 mA. The component is housed in a 68-PLCC package with J-leads, measuring 24.21 x 24.21 mm. It is designed for surface mount installation and functions reliably across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Supports simultaneous independent read/write operations at two distinct ports without bus contention.
• Utilizes CMOS technology to ensure low power consumption during active and standby modes.
• Provides asynchronous operation compatible with various system clock speeds via dedicated control signals.

Applications

• High-speed data buffering in telecommunications equipment
• Cache memory implementation in embedded processing systems
• Data logging applications requiring rapid write cycles

Procurement Notes

Verify the specific suffix 'JI' against official manufacturer documentation to confirm the commercial temperature grade (-40°C to +85°C) and package variant. Confirm RoHS compliance status, as historical records indicate potential non-compliance for earlier manufacturing lots. Check for End-of-Life notices or obsolescence warnings before finalizing procurement plans.

Selection Notes

Select this component when a dual-port architecture is required for concurrent host and peripheral access. Ensure the system design accommodates the 68-pin PLCC footprint and 5V logic levels. Compare against single-port alternatives if only one master device accesses the memory simultaneously.

Part Context

This part belongs to the 7133 series of dual-port SRAMs from Renesas. It shares architectural similarities with the IDT7133 family but may differ in pinout or electrical characteristics. It serves as a high-performance memory solution for applications demanding independent port access.

Replacement Considerations

Official substitutes include the 7133SA35J and 7133LA25PFGI8. Verify pin compatibility and electrical specifications before substitution.

FAQ

What is the difference between the 7133LA35JI and 7133SA35JI?

The primary difference is the operating temperature range. The LA suffix indicates an industrial temperature range of -40°C to +85°C, while the SA suffix typically denotes a commercial range of 0°C to +70°C.

Does this component support simultaneous reads from both ports?

Yes, the dual-port architecture allows independent read and write operations at Port A and Port B simultaneously without bus contention.