7005L17G

Overview

The Renesas 7005L17G is a high-speed 8K x 8 Dual-Port Static RAM with a 64 kbit density. It operates on a single 5V (±10%) power supply and features asynchronous parallel interfaces for both ports. The component supports simultaneous reads of the same memory location using true dual-ported memory cells. It includes on-chip hardware support for semaphore signaling, interrupt flags, and port arbitration logic to manage master/slave configurations. The device is available in a 68-pin PGA package and supports battery backup operation with data retention down to 2V.

Feature Summary

• True dual-ported memory architecture enabling simultaneous independent access to shared memory locations by two distinct ports.
• Integrated hardware arbitration logic supporting semaphore signaling and interrupt flags for efficient master/slave coordination.
• Asynchronous operation from either port allowing flexible integration into systems requiring non-synchronized data exchange.
• Low standby power consumption achieved through automatic power-down features controlled by chip enable signals.

Applications

• Stand-alone 64K-bit dual-port memory modules
• Master/Slave dual-port RAM configurations for 16-bit or wider word systems
• Battery-backed memory systems requiring 2V data retention

Procurement Notes

Verify current availability status as this component may be subject to discontinuation notices. Confirm package type compatibility, specifically the 68-pin PGA variant, against existing board designs. Check for moisture sensitivity levels and reflow soldering profile requirements prior to assembly. Ensure voltage supply specifications align with system 5V tolerance limits.

Selection Notes

Select this component when simultaneous bidirectional data access is required without external bus contention logic. The integrated semaphore and interrupt features simplify synchronization compared to standard SRAMs. Verify that the PGA-68 package fits the mechanical constraints of the target enclosure. Consider the asynchronous interface timing requirements against the system clock speeds.

Part Context

The 7005 series represents a family of high-speed dual-port static random-access memories designed for applications needing concurrent access. This specific model belongs to the 7005L subset, typically indicating leaded packaging options like PGA. The series is engineered to replace complex FIFO buffers or shared memory banks in embedded control systems.

Replacement Considerations

Public confirmed substitute part numbers include IDT7005L17G. Verify pinout and electrical characteristics match before substitution. Other variants in the 7005 series may offer different access times or packages but require functional validation.