7143LA25JI8

Overview

The Renesas Electronics Corporation 7143LA25JI8 is a dual-port static random-access memory (SRAM) integrated circuit. It features an asynchronous parallel interface with a storage capacity of 32 kbit, organized as 2k x 16 bits. The device supports a maximum access time of 25 ns and operates within a supply voltage range of 4.5 V to 5.5 V. It is housed in a 68-pin PLCC package and is designed for industrial temperature ranges from -40°C to +85°C.

Feature Summary

• Dual-port architecture enabling independent simultaneous access by two processors
• Asynchronous operation without requiring a system clock signal
• Parallel data bus interface for direct connection to microprocessors

Applications

• High-speed data buffering between processing units
• Cache memory implementation in embedded systems
• Data logging applications requiring non-volatile-like persistence during power cycles

Procurement Notes

Verify the specific suffix 'JI8' against official Renesas documentation to confirm pinout compatibility and RoHS status. Confirm availability through authorized distributors as lead times may vary. Ensure the operating environment stays within the specified -40°C to +85°C range to maintain performance specifications.

Selection Notes

Select this component when dual-port functionality is required for concurrent read/write operations. Compare access times and power consumption against single-port alternatives if only one processor is used. Verify that the 68-lead PLCC package fits the target PCB footprint and assembly constraints.

Part Context

This part belongs to the Renesas 7143SA/LA series of dual-port SRAMs. These devices are commonly used in telecommunications and industrial control systems where high-speed data transfer between separate logic domains is critical. The series offers various speed grades and package options to suit different design requirements.

Replacement Considerations

Check for compatible parts within the same 7143SA/LA family with matching access times and pinouts. Verify electrical characteristics and package dimensions before substitution.