7005L20JI

Overview

The Renesas Electronics Corporation 7005L20JI is a high-speed, asynchronous dual-port static random-access memory (SRAM) integrated circuit. It provides a total storage capacity of 64 kilobits, organized as an 8K by 8-bit array. The device features independent read and write ports for simultaneous data access without bus contention. Key electrical specifications include a maximum access time of 20 nanoseconds and a single 5-volt power supply requirement operating within a range of 4.5 to 5.5 volts. It supports industrial temperature ranges from -40°C to +85°C and is housed in a 68-pin Plastic Leadless Chip Carrier (PLCC) package.

Feature Summary

• True dual-ported architecture enabling simultaneous independent reads and writes to the same memory location
• On-chip hardware support for semaphore signaling and port arbitration logic
• Automatic power-down feature controlled by chip enable signals for low standby power
• TTL-compatible inputs and outputs with battery backup capability for data retention

Applications

• Master/Slave dual-port RAM configurations for 16-bit or wider data systems
• High-speed cache memory in embedded processing applications
• Buffer memory in telecommunications equipment requiring parallel interface
• Industrial control systems operating in extended temperature environments

Procurement Notes

Verify the specific suffix JI against official Renesas documentation to confirm pinout compatibility and package dimensions. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Check current production status as older variants may be discontinued or subject to last-time buy notices. Ensure voltage levels match your system's 5V tolerance before integration.

Selection Notes

Select this component when simultaneous bidirectional data transfer is required without external arbitration logic. The 20ns access speed suits high-performance parallel interfaces. Consider the PLCC-68 package constraints for PCB layout. Verify that the 5V TTL I/O levels align with your host controller's voltage standards. Evaluate thermal dissipation needs for the specified operating temperature range.

Part Context

The 7005 series represents a family of high-speed dual-port SRAMs designed for versatile memory expansion. This specific model utilizes asynchronous operation, allowing flexible timing control for both ports. The technology supports standalone 64K-bit usage or combined master/slave modes for expanded word widths. It is manufactured using advanced CMOS processes to ensure reliability and low power consumption.

Replacement Considerations

Public confirmed substitute part numbers: IDT7005L20J8.