7005L12JI

Overview

The Renesas 7005L12JI is a high-speed asynchronous dual-port static random access memory (SRAM) with a storage capacity of 64 kilobits, organized as 8K by 8 bits. It features a parallel interface and operates within a supply voltage range of 4.5V to 5.5V. The component provides an access time of 12 nanoseconds and supports industrial operating temperatures from -40°C to +85°C. It is housed in a 68-pin Plastic Leaded Chip Carrier (PLCC) package measuring 24.21mm by 24.21mm.

Feature Summary

• True dual-ported memory cells enable simultaneous independent reads and writes from either port without conflict.
• On-chip hardware semaphore signaling and interrupt flags facilitate automatic synchronization between the two ports.
• Automatic power-down mode controlled by chip select signals reduces standby power consumption significantly.
• TTL-compatible single 5V power supply simplifies integration into standard digital logic systems.

Applications

• High-speed data buffering in telecommunications equipment
• Real-time signal processing systems requiring low-latency memory access
• Master/slave dual-port configurations for 16-bit or wider data bus expansion
• Industrial control systems operating in extended temperature environments

Procurement Notes

Verify component authenticity through authorized distributors due to end-of-life status. Confirm RoHS compliance requirements as this specific variant may not meet current environmental standards. Validate package integrity upon receipt to ensure pin alignment matches the 68-PLCC specification. Review datasheet revisions for any functional updates prior to final design implementation.

Selection Notes

Select this component when 12ns access speed is required for dual-port applications. Ensure the system design accommodates the 68-PLCC surface mount footprint. Verify that the 5V logic levels match the host processor interfaces. Consider thermal management capabilities given the industrial temperature range specifications.

Part Context

This part belongs to the Renesas 7005 series of dual-port SRAMs, which are designed for high-performance data sharing between two independent processors or buses. The series offers various access speeds and packaging options to suit different performance and space constraints in embedded systems.

Replacement Considerations

Public confirmed substitute part numbers include IDT7005L12J1 and IDT7005L12JFI. Verify pin compatibility and electrical parameters before substitution. Check manufacturer documentation for any functional differences between legacy and updated versions.